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i t R N s c O n u I a T d U p o L x r O E SOLUTIONS OF PLANTECH SOLUTIONS S P

JP Steel Plantech Co. SOLUTIONS OF STEEL PLANTECH SOLUTION 1 Product Range Expansion We provide facilities that enable the timely manufacture and supply, at appropriate volume and costs, of products that satisfy our customers’ diverse needs. In particular, we can propose facilities that are characterized by their high functionality and superior quality to finish high- class, differentiated and competitive products in various industrial fields.

• RH Degasser • Section Rolling Mill • Plate Leveler • Continuous Annealing Line (CAL) • Continuous Galvanizing Line (CGL) • Annealing and Coating Line (ACL) • Color Coating Line (CCL) • Tension Leveler

SOLUTION 2 Product Quality Enhancement From the manufacturing of pig and steel to casting, rolling and process lines, we offer a coherent lineup of facilities that enables facility designs with upstream and downstream processes taken into consideration. We have been supporting the technological development of the Japanese industry for about 70 years since the time of the companies that joined hands to establish Steel Plantech. We possess world-class equipment technologies that will meet the needs of our customers for high quality and high steel manufacturing.

• Coke Dry (CDQ) • KR Hot Metal Desulfurization System • RH Degasser • Continuous Bloom, Beam Blank and Billet Casters • Roller Straightener • Continuous Annealing Line (CAL) • Continuous Galvanizing Line (CGL) • Tension Leveler 3 JP Steel Plantech Co. Plantech Steel JP

SOLUTION 3 Production Volume Increase SOLUTIONS OF STEEL PLANTECH We have an abundant track record in the delivery of not only new, large-scale, large-capacity facilities but also in renovating equipment to expand the capacity of an existing facility. Furthermore, we can provide optimum layout plans, original technology for continuous manufacturing processes, facilities for enabling fast line speeds, and other proposals to enhance productivity.

• Sinter Plant – Expansion Pallet Car • Continuous Slab Caster • Bar and Rod Mill • Plate Shear • Zoom-Mill™ • Continuous Annealing Line (CAL) • Continuous Galvanizing Line (CGL)

SOLUTION 4 Production Cost Reduction A reduction of plant operating costs is achieved for upstream processes by such means as increasing the use rate of low-grade raw materials, energy conservation and automation. We take a comprehensive look at equipment prices and operating costs to propose better facilities. For downstream processes, we have various facilities on hand that will increase yields and are simple and easy to operate and maintain.

• Coke Dry Quenching (CDQ) • Sinter Plant – Energy-saving Ignition Furnace • Sinter Plant – Water-Sealed Circular Cooler • Lime Kiln • OG System • Ecological and Economical Arc Furnace (ECOARC™) • Next Generation Ecological and Economical Arc Furnace (ECOARC light™) • Quality Strip Production Process (QSP) 4 SOLUTION 5 Customization While responding to the different conditions and needs of individual customers through our experience and excellent personnel, we ensure good communication with our customers to propose optimum facilities for customer’s site space factors, raw materials and energy situation and product quality requirements.

• Sinter Plant – Expansion Pallet Car • Converter • OG System • • Computer System for Steelmaking Facilities • Continuous Slab Caster • Plate Shear

SOLUTION 6 Environmental Friendliness Our globally top-level environmental and energy-saving technologies have been developed in accordance with Japan’s strict environmental regulations and energy- saving requirements.With these technologies at the core, we consistently respond to our customers, in ways that range from having consultations for achieving energy- efficient steelmaking plants to reducing footprints concurrent with the recovery and reuse of resources and energy, proposing plans to realize environmental improvements, carrying out feasibility studies, procuring funds, and supplying designs for facilities.Our motto is, “For the earth and the future of humankind.”

• Coke Dry Quenching (CDQ) • Sinter Plant – Water-Sealed Circular Cooler • Sinter Plant – Cooler Waste Heat Recovery System (WHRS) • OG System • Ecological and Economical Arc Furnace (ECOARC™) • Next Generation Ecological and Economical Arc Furnace (ECOARC light™) 5 JP Steel Plantech Co. Plantech Steel JP

Coke Dry Quenching (CDQ)

Products Coke Dry Quenching (CDQ) is a heat recovery system to quench red hot coke from a coke oven

Ironmaking to a appropriate for transportation. It is an energy saving system in which, during quenching process, sensible heat of the red hot coke is recovered

BOF and utilized for power generation or as steam.

Technical Information EAF

A Solution for Coke Carrying- Rope-trolley Type Coke

Continuous Casting over Phenomenon and Increase Bucket Hoisting Crane in Circulation Gas Flow by Introducing "Double Flue" In order to resolve As our Rope- the issue of coke trolley type coke blowing up and bucket hoisting Bar Steel Rolling Steel Bar carrying-over crane has its phenomenon, Steel winch on the Plantech developed position near the “Double Flue” ground level, the which has two- weight of crane decker flue paths. (Upper part of a CDQ structure) • By adopting Double Plate Rolling can be reduced by approx. 100 t as compared Flue, a two-decker with conventional overhead crane. Thus, it can flue, the flow speed of the gas, which causes realize the following merits: coke carrying over phenomenon, can be increased by 1.4 times or more of that of Single Flue. • Lower construction cost of the CDQ structure; • As a result, circulating gas would be increased to • Less space needed — space was conventionally Ironmaking 3

Surface Processing 1,400m N/t-coke or more even in case of a large- allocated on the crane garter for maintenance Steel Plantech’s ironmaking • Coke Dry Quenching (CDQ) scale CDQ without any trouble. of the crane winch; • Sinter Plant - Energy-saving Ignition Furnace • On the other hand, if the flow rate is the same • Easy and safe maintenance of the crane winch equipment and facilities have the • Sinter Plant - Expansion Pallet Car as that of single flue, it is possible to decrease on near the ground level, not at a high place as widespread backing of customers • Sinter Plant - Water-Sealed Circular Cooler abrasion of waste heat boiler, secondary dust conventional overhead cranes; and • Sinter Plant - Cooler Waste Heat Recovery System collector and gas circulation blower. This results • Conventional overhead crane winch and in Japan and overseas. The (WHRS) in remarkable extension of the life of whole electric equipment are used on CDQ top, in a company’s extensive experience • Pulverized Coal Injection (PCI) System for Blast Furnaces facility. Furthermore, the Double Flue can reduce corrosive atmosphere, before. As our Rope- • Gas Cleaning System (RSW – Ring Slit the load on dust treatment equipment. trolly type installs the crane winch on near and cutting-edge technologies are Washer) • By application of Double Flue to the CDQ, remarkable the ground level, operation and maintenance highly recognized by many around efficiency can be achieved like stable operation, environment is much improved, and this leads reducing maintenance cost and operation cost. to life extension of the crane winch. 6 the world. JP Steel Plantech Co. Products Ironmaking BOF EAF Continuous Casting Long Products Rolling Flat Products Rolling Strip Processing Lines 7 (*1:Patented) emissions in total. 2 warming. Recovered heat CDQ by is used generate to steam or electric which power, leads a reduction to of fossil fuel usage at power plant. Thus, you can reduce CO gas circulation, CDQ remarkably reduces the dust to be released into the atmosphere as compared with the CWQ. around coke oven batteries; and catcher; system. circulation gas and • CDQ is one of the excellent countermeasure global to CDQ is a gradualcoke quenching system and can improve the coke strength, as the raw material for blast furnace. And coke distribution size can be improved in the process of descending coke packed bed. These characteristics are useful for stable operation of a blast furnace, in order secure to good gas and solid reaction keeping by permeability in a blast furnace. Steel Plantech has developed “New coke handling system (*1)” and “Rotary bucket new traverser system (*1)”. Such technologies enable the layout flexibility of CDQ. Our large CDQ can be introduced even in a narrow space where it is difficult install to the conventional CDQ system. Ourdesign meets requirement. customer’s and offer to experience and technologies has Plantech Steel resolve the following problems which customers may face: • Have given up CDQ installation because of the narrow space • Want increase to the CDQ operation ratio; • Want secure to stable CDQ operation; • Want extend to the life of refractories; • Want resolve to the trouble of Collision wall drop off in the Dust • Want extend to the life of equipment such as waste heat boilers • In CDQ, red hot coke is quenched in a closed cooling Environmental Friendliness Environmental Enhancement Quality Product Customization e ok 5 t-c 8 h/ 1 kW Electric power generation power Electric % 5 9 Annual operating ratio % 0 3 Solutions coal for coke oven material oven coke for coal Blending ratio of non- or slightly-caking blowing air into the gas, and so the temperature of the circulating gas can be raised. Thus, steam generated the by waste heat boiler can be increased. reliable highly and refractories appropriate technology, Flue Double equipments. 185 kWh/t-coke can be obtained, according CDQ to operation and conditions. steam within three five to years. improves coke strength and coke size distribution. Consequently, Consequently, distribution. size coke and strength coke improves while the blending ratio of inexpensivenon- or slightly-caking coal for coke oven material is only approx. 15% in case of CWQ Wet (Coke Quenching) system, it can be increased up approx. to 30% CDQ, by resulting in a cost reduction with raw materials for coke oven. and 5 %), to (2 the Coke ratio of Blast furnace can be reduced. Combustiblecomponent and coke dustin circulating gas areburned by • A high annual operating ratio of 95% can be achieved combining by the 140- of generation power and kg/t-coke 500-700 of generation • Steam • Such excellent features realize the payback period of initial investment • CDQ Dry (Coke Quenching) is a gradual coke quenching system, and • The CDQ coke has lower moisture content 0.3%) to (0.1 than CWQ coke • Feature of CDQ process are follows. Production Cost Reduction JP Steel Plantech Co. Plantech Steel JP

Sinter Plant –

Products Energy-saving Ignition Furnace This flame from the burner nozzle hits the raw material sent to pallet cars by the feeder and ignites the fuel (coke) within

Ironmaking the raw material. BOF EAF Solutions Technical Information

Continuous Casting Production Cost Reduction High-efficiency Burners

Equipped with high efficiency burners developed for sinter machine ignition furnaces, the 10 straight-directionality of the Mcal/t-sinter or less Long Products Rolling nozzles allow the flames to reach (COG basis) the raw material surface at a fast speed, thereby increasing thermal Ignition furnace fuel consumption rate conductivity and igniting the raw material quickly and reliably. A lifting device is installed within the furnace in order to ensure that the burner flames hit the raw material surface accurately. Flat Products Rolling Products Flat The spacing of the burners has been reduced in order to enable even ignition of the raw material surface. The furnace temperature and the amounts of the coke oven gas and combustible air is monitored and automatically controlled by the control panel. The ignition furnace is compact. The volume has been made smaller, and the length of the furnace has been reduced by making the burner flame shorter, reducing the furnace ceiling height and shortening ignition time through high-temperature ignition. Strip Processing Lines The ignition furnace fuel consumption rate has been significantly reduced as a result of the above. Making the furnace compact enables the shortening of installation time and reduction of facility costs. Furthermore, it makes it possible to significantly decrease the ignition An ignition furnace fuel consumption rate of 10Mcal/t-sinter or less Furnace Pressure (on a COG basis) can be achieved with greater certainly through the furnace’s fuel consumption rate. Although the addition of a furnace pressure regulator Regulator installation of a furnace pressure regulator to maintain an appropriate would increase initial costs, it will further decrease the fuel consumption rate. furnace temperature.

8 JP Steel Plantech Co. Products Ironmaking BOF EAF Continuous Casting Long Products Rolling Flat Products Rolling Strip Processing Lines 9 Technical Information Technical Customization There are two types of existing pallet cars: those that are in a single unit, and those that can be separated into three pieces. If the existing pallet car is the latter kind, only the both side-ends need be to replaced extend to the pallet width. Because the middle piece can be reused, it makes it possible increase to production volume at a low cost. Grate bar This is technology that enables an increase in sinter ore production volume with only minimal retrofitting of existing sinter machines. Adoption of a structure that allows the placement of grate bars at the extension area ensures that there will be no return fines, which occur in the area of competitor’s products, allowing for a maximum effect in production volume increases. Customization It can be applied regardless of the type of the existing sinter machine and or the current pallet width. Existing equipment can be fully utilized increase to the production volume of little with sintered ore retrofitting. r e r u t c a f u n a l m e te Grate bars that take into permeability used are consideration at the extension points. This ensures complete without the return fines that occur in the extension points products. competitor of Adopting the Steel expansion Plantech’s pallet car will allow you to maximize the production volume of sintered ore. e s c a n r u t f s a l e b s e n a p

a ease in a J appreciatedWe the fact that no major retrofitting or huge investment was required adopt to the pallet car extensions. What is more, we realized that the increase in the production volume of the sintered ore was even greater than we anticipated before adoption. oduction

incr pr % Solutions

0 1 Customer comments Customer Production Increase Volume Pallet cars are oneof the important components of a sinter machine. Sinters are made igniting by the surface ofthe raw material fed into the pallet car while suction from the underside forces air downward. Sinter grate bars are used make to this possible. Because technology expand to the width of the pallet cars has been adopted, only minimal retrofitting is required to increase the production volume of the sintered ore. Expansion Car Pallet Sinter Plant – Plant Sinter JP Steel Plantech Co. Plantech Steel JP

Sinter Plant – Technical Information

Products Water-Sealed Characteristics of the new-type water-seal Circular Cooler cooling A sinter plant takes fine ore and other Ironmaking materials, and fuses them together to produce sintered ore for use in blast furnaces. Roughly speaking, a sinter plant can be divided into four parts: raw material mixing system, sinter machine,

BOF sinter cooler and sinter screening system. This is a water-sealed cooler, which improves upon conventional rubber air seal type coolers. EAF

Water-seal cooling type performance

Continuous Casting Solutions comparison Production Cost Reduction Environmental Friendliness Long Products Rolling 5% or less 30% reduction air leakage rate in cooling fan power

The adoption of a water seal has enabled a

Flat Products Rolling Products Flat significant decrease in air leakage. This has reduced the amount of air required for cooling to two-thirds of a conventional system, thereby making it possible to keep running costs low. Strip Processing Lines

The air chamber is built into the trough, significantly reducing dust generation, and making it possible to maintain a clean environment.

10 JP Steel Plantech Co. Products Ironmaking BOF EAF Continuous Casting Long Products Rolling Flat Products Rolling Strip Processing Lines 11 s e Technical Information Technical r u t a e performance with its low load differential pressure and liquid-gas ratio. the dust content at the outlet of the RSW is 5 mg/Nm3 or lower. performance. control nozzle. spray cone hollow diameter The features of RSWThe of features F • Compact, space-saving system. • Achieved excellent dust collection • The load differential pressure is 30 kPa, and • Realized excellent blast furnace top pressure • Adopted Steel Plantech’s unique large The RSW jointly contains an auxiliary spray tower-type scrubber in its upper part and a throat-type variable scrubber venturi called RSE in its lower part. An axis flow mist separator is installed in the downstream to separate air and liquid. In this this way, system realizes the dust content at the outlet of the system of 5 mg/ Nm3 or lower. Solutions Blast Furnace Gas Cleaning System Gas Cleaning Blast Furnace Washer) – Ring Slit (RSW The Ring Slit Washer (RSW) wet gas scrubber is used widely with various dust collection devices, including its use for cleaning the gas emitted blastby and furnaces. converter Production Cost Reduction Customization The RSE is raised by a hydraulic cylinder, and a hydraulic oil room is installed near the RSW. If a customer requires only the dust collection function, hydraulic oil room becomes adopting by unnecessary an electro-hydraulic hybrid system, and it can be cost. construction a reduced The electro-hydraulic hybrid system is a system where a hydraulic cylinder is directly operated by adjusting the forward and reverse flow of and pump, hydraulic type motor inverter an whole hydraulic power unit is stored in the lower part of a RSW main unit. In addition a dust to collection function, RSW (Ring Slit Washer) has a function control to the top pressure of a blast furnace with a built-in RSE (Ring Slit Element). Therefore, this system does not require septum valves, and can realize facility cost reduction. TRT(top a with combined Furthermore, pressure recovery turbine), this system can generate high efficiency power blast by pressure. gas top furnace : m e t s y s

g n ti a l u c r i c e r

a

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s e g a Technical Information Technical t n a v d A During recovery of waste heat from cooler waste gas, a recirculating system returns waste gas that has decreased in temperature in heat exchange the to cooler, then uses it again as coolant gas for the sinter. This makes a recirculating-type system more efficient system. non-recirculating-type a than Waste gasWaste recirculating flow waste heat recovery and dust dust and 2 2 eam t superheated steam) superheated ℃ 3 g-s k 1 Steam flow per sinter 1 t (2.1 MPa-G/319 (2.1

, is reused in the cooler rather ℃ kW

Solutions per sinter 1 t

Power generated generated Power 26 than released into the atmosphere.than the released into This increases the amount of heat recovered inthe boiler as well as decreases CO Introduction of this system will allow up to about 60 % of the waste heat from the sinter cooler be to reused as steam or . Furthermore,in this system, the exhaust from the waste heat boiler, which is at a temperature of about 180 Environmental Friendliness Environmental Recovery System (WHRS) System Recovery This is a system for recovering high- cooler’s sinter the temperature waste gas as steam, which can be used for power reuse Furthermore, generation. of the waste heat as the thermal source of sintered ore production will improve the productivity of machines. sinter Sinter Plant – Cooler Waste Heat Heat Waste – Cooler Plant Sinter emissions. JP Steel Plantech Co. Plantech Steel JP

Pulverized Coal Injection (PCI) Solutions

Products System for Blast Furnaces Production Cost Reduction

In the past, reactions within the blast furnace were stimulated Ironmaking by injecting heavy oil, as auxiliary fuel, along with the blasts and more than200 oxygen. The heavy oil was replaced by pulverized coal after the oil kg/pigiron-t crisis. This made it possible to use cheap coal, such as non-coking PCI Ratio coal. Furthermore, the amount of coke used can be reduced if huge This is a facility aiming at the life-prolonging amounts of pulverized coal are injected. Therefore, in recent years, measure against production cost reduction and

BOF Pulverized Coal Injection (PCI) systems are used in order to lower a coke oven by direct injection of cheap coal into production costs as well as extend the life cycle of coke ovens. a blast furnace instead of expensive coke, and abundant injection of high PCI operation (200 kg/ pigiron-t more) is available. EAF Customization Continuous Casting Long Products Rolling Flat Products Rolling Products Flat Strip Processing Lines Steel Plantech’s intermediate transfer station can handle long-distances of up to 1.5km between pulverization and drying facilities to injection facility. This allows the pulverization and drying facilities to be set up at a distance from the blast furnace, so this Pulverized Coal Injection (PCI) system can be installed even if there is only limited space around the blast furnace.

12 JP Steel Plantech Co. Products Ironmaking BOF EAF Continuous Casting Long Products Rolling Flat Products Rolling Strip Processing Lines 13 mechanical feeder (table (table feeder mechanical enables: which feeder), - An easy adjustment of the and amount injection - High accuracy of the amount; injection system where a single injection can be divided distribute to two to tuyeres, improving the heat balance of a furnace; purging system which immediately detects clogging in injection pipes; system which enables constant discharge; and reduction. cost facility and structure Waste PlasticWaste Injection System(WPIS) Asa related technology, delivered Plantech Steel the systems inject to waste plastic, as a reduction agent for blast furnaces, from tuyeres. The features of the facility are as follows: • Capacity 30,000 t/year; constant and • Stable branched a • Adopted • Adopted an automatic discharge mechanical and m3) (300 hopper storage large-capacity a • Adopted • Switching type injection vessels (side-by-side-vessel design) which realize low Technical Information Technical pulverized coal from from coal pulverized injection vessels the to distributor throughsingle a and distributing pipe theit to tuyeres at the distributer; system (Solid-gas ratio 30 kg/kg which or more) reduces conveying gas consumption 50% by compared with a dilute phase conveying system; velocities or lower) (5 m/s which requires no measures be to taken against the wear of expensive pipes; of clogging in injection pipes; and reduction. cost facility and structure The features of the Injection Coal Pulverized (PCI) System are as follows: • A Simple system conveying conveying phase • Dense • Conveying at low gas • Adopted an automatic purging system which provides for the immediate detection • Switching type injection vessels (side-by-side-vessel design) which realize low The features of facility of The features JP Steel Plantech Co. Plantech Steel JP

Converter

Products A steel manufacturing plant centered on converter systems is Steel Plantech’s core product, and more than 130 units have been delivered to date since 1960. In addition to providing equipment that constitutes

Ironmaking a steel manufacturing plant, including KR hot metal desulfurization systems, converter systems, exhaust treatment systems (OG) and secondary refining systems (RH/LF), Steel Plantech can coordinate the whole plant. Our OG system is rated highly for its high level of safety, low environmental burden, and energy saving effects. BOF EAF Continuous Casting Bar Steel Rolling Steel Bar Plate Rolling BOF Surface Processing Steel Plantech offers converter furnaces and other BOF • Converter • KR Hot Metal steelmaking facilities and systems on the basis of its Desulfurization System advanced technological competence and rich experience • RH Degasser • OG System as a leading company in the field of steelmaking engineering and facilities supply. In particular, Steel Plantech’s OG System has a high reputation for its high level of safety and energy-saving performance, while 14 reducing the load on the environment. JP Steel Plantech Co. Products Ironmaking BOF EAF Continuous Casting Long Products Rolling Flat Products Rolling Strip Processing Lines 15 Technical Information Technical supported two by points at the upper part of trunnion, one is on the actuated side and the other is on the unactuated side. moment unbalanced the and ring trunnion the on of the furnace body is supported the by lower bracket. With the adoption of this method, the trunnion shaft is unaffected time-related by Consequently, body. furnace the of deformations havewe realized a maintenance-free system. adopted and developed was it since converters for use in an actual furnace in 1969. It has been a source of customer satisfaction for a great years. of number Simple structure where the furnace body is The entire axial load is supported two by points This method has been used in all of our • • • Converter Furnace Two-point Two-point Furnace Converter Support Method We have experience delivering converter systems with with systems converter delivering experience have We many different capacities, ranging from 60 330 to t. A two-point support method is adopted forthe furnace Moreover, down. cooled parts are necessary and body, the furnace bottom is replaceable, which can shorten the period required for furnace repair. Combined with devices, tilting converter as such equipment, auxiliary collecting dust secondary facilities, lance sub and lance facilities, conveyance and charging facilities, ladle converter and stations, maintenance ladle cars, transfer brick laying devices, will we realize the most powerful plant. making steel Experienced instructors, who have a good knowledge of production and maintenance in many places of the world, will strictly meet delivery times and secure product instructions work installation effective Through quality. and control of trial operations which are appropriate to each construction site, you can achieve a certain amount operation. of start the after soon production of By making use of the know-howgained we through our plants, manufacturing steel constructing experience rich willwe provide optimal layouts. Along with our optimized handling methods for materials and molten steel ladles, havewe introduced state-of-the-art technologies into the steel making processes. Thus, can we improve your The costs. operation basic your reduce and productivity technologies backed with our rich experiences will work extremely well, not only in green fields, but also in brown fields accompanied the by remodeling or renewalof an plant. existing Solutions Customization Production Increase Volume Production Cost Reduction JP Steel Plantech Co. Plantech Steel JP

OG System Technical Information

Products The OG system (Oxygen Converter Gas Recovery System) is Functions of the OG System suppressed type LD gas recovery system for the converters of steel The exhaust gas discharged from the converter furnace is the gas makings shops. The OG system was jointly developed and improved of high temperature (1,450℃) containing high concentration of

Ironmaking CO (95%). by both Nippon Steel Corporation (NSC/ now NSSC) and Kawasaki The OG unit is an oxygen converter gas treatment system Heavy Industries Ltd. (KHI), in Japan. In 2004, steel plant division of which is designed for the purpose of cooling this exhaust gas by burning it as little as possible, removing KHI was transferred to JP Steel Plantech, Co (SPCO). the dust contained in the exhaust gas at high Therefore, SPCO and NSC have developed the technologies and own concentration and recovering the gas as CO gas which can be used as fuel. the patents of the OG system. Until now, totally 192 OG systems have ❶ P0 Control BOF been installed in all over the world, thus the name of “OG” is widely ❷ Hood Dolly admitted not only as the safest process for recovering LD gas with ❸ Dust collector high efficiency but also as a synonym of the best solution for energy ❹ 3-way valve & Water sealed check valve ❺ Clean gas emission form flare stack saving and environmental control. • The combustion of the CO gas generated by the converter furnace is lowered to 10% or less by the hood pressure control system. EAF • The high temperature (1,450℃) CO gas is cooled down to approximately 600℃ to 1,000℃ by the cooling system. • If the cooling system is changed to the boiler type, the sensible heat of the high temperature gas can be recovered as steam..

Continuous Casting • The steam recovery amount can be further increased by introducing the convection heat transfer area to boiler. • The gas cooled by the cooling system is further cooled to approximately 70℃ by the wet dust collector and 99.9% of the high concentration dust in the gas is removed. • The high concentration (70 to 80%) CO gas which was cooled and treated for the dust removal is stored in the gas holder and used as fuel, etc. The gas recovery rate is 70% to 90%. Long Products Rolling OG Boiler System Flat Products Rolling Products Flat Strip Processing Lines

16 JP Steel Plantech Co. Products Ironmaking BOF EAF Continuous Casting Long Products Rolling Flat Products Rolling Strip Processing Lines 17 0 N 5 ㎥ tack outlet) ~ mg/ e s 0 t flar Dust-collection performance Dust-collection 3 (a 0 eel t 10 t-s ~ g/ k 0 Basic unit of recovered steam 7 N) 0 ㎥ eel t cal/ 10 t-s ~ N/ ㎥ t 2000k 0 Basic unit of recovered gas being as of the the part(s) 2nd key stage dust collecting system of OG, allows superior dust when even maintained be to efficiency collection blowing. during LD-gas fluctuates of amount wet as always so that there is no iginition source at all, that surelyensure keep you to positive safety operations. converter’s throughout be can system boiler by generation steam CO, simultaneously achieved OG. by Also our unique transfer heat convection installing of technologies additionallypart(s) can give you more amount of steam. (a The venturi scrubber-type Ring Slit Washer (RSW), (RSW), Washer Slit Ring scrubber-type venturi The All the inside surfaces of Gas duct of OG keeps fully- Not only LD-gas recovery with high density of 7 Environmental Friendliness Environmental ❶ ❷ ❸ The compact facility of OG system featuring provide to you ensures type combustion suppressed more flexible design, compared with others of full- type. comnustion The compact facility and its high-flexibility of design of OG surely can correspond any site-condition to fully well enough for your needs especially for revamping projects. Customization s % or les 0 1 combustion rate at furnace throat at combustion rate Solutions The Hood pressure contol system of OG can ensure to suppress combustion rate of LD gas down 5 -10%, to by automatic control of the Ring Slit Washer (RSW) being also fucntioned of the as part(s) Dust key collecting system of OG. This system leads minimize to LD-gas flow rate throughout converter’s operations, that surely makesit possible get to much more compact facilities compared with the system of full-combustion type. Therefore, the components key such as IDFan, pumps can also be minimized so that cost-saving can be certainly achieved more in terms not only of their initial investmentbut also of their electrical power consumption. Production Cost Reduction JP Steel Plantech Co. Plantech Steel JP

KR Hot Metal Desulfurization System RH Degasser

Products Demand for high purity steel is becoming stronger as quality Molten steel, taken out of the converter furnace, is ultimately refined demands for steel become higher. This is especially true and degassed during the secondary refining process. The RH Vacuum for sulfur content, and there is now a need to make strict Degasser is ideal for the swift degassing of large amounts of molten

Ironmaking adjustments to the amount contained in the manufactured steel. The RH Vacuum Degasser is also suitable for the mass production steel. This process of removing impurities from molten metal of high purity steel at integrated steelworks, realizing in advance before charging it into a converter furnace is and heating by injecting pure oxygen gas into the vacuum vessel. called hot metal preliminary processing. The KR Hot Metal Desulfurization Furthermore, it has extended refining functions, such as the System developed by Steel Plantech will achieve high-level desulfurization acceleration of desulfurization and deoxidation through addition of flux

BOF efficiency as well as contribute to a reduction of operating costs. while controlling the form of the impurities.

Solutions Solutions Technical Information

EAF Product Quality Product Quality Enhancement Product Range Expansion Ladle Hoisting Device Enhancement and Product Quality Utilization of the KR Hot Enhancement Continuous Casting Metal Desulfurization System will achieve high- level desulfurization 20% efficiency, curb Improvement in operating costs and Desulfurization

Long Products Rolling Efficiency reduce processing time as well as allow high-capacity The KR Hot Metal Desulfurization processing. Furthermore, it will System achieves roughly 20% higher also prove effective in reducing the desulfurization efficiency as compared amount of dust generated. to powder injection desulfurization. Flat Products Rolling Products Flat

• Hoisting achieved through four synchronized Technical Information hydraulic cylinders. • The next ladle can be placed on standby during processing, thereby contributing to Pattern of Operation improvement of production efficiency.

Strip Processing Lines We propose the optimal layout to and Processing Time • Construction costs lower than hydraulic achieve high production efficiency. elevation devices with a single cylinder. • Processing time is less than 12 minutes, This makes it possible to achieve and the total cycle time is within the tap-to-tap times of converter furnaces. a high degree of vacuum as well • The free board of the hot metal ladle as to smelt ultra-low . is between 0.7m and 1m. It is possible Furthermore, it makes it possible to to keep the free board lower than the injection method (for desulfurization achieve a high degree of vacuum as at the same level). well as smelt ultra-low carbon steel.

18 JP Steel Plantech Co. Products Ironmaking BOF EAF Continuous Casting Bar Steel Rolling Plate Rolling Surface Processing 19 Furnace (ECOARC light™) • Ecological and Economical Arc Furnace (ECOARC™) • Next Generation Ecological and Economical Arc • Electric Arc Furnace • Computer System for Steelmaking Facilities EAF Electric furnaces are one of Steel Plantech’s core products that were succeeded from JFE Engineering (formerly NKK). The company’s wealth of experience as a user of such facilities allows us offer to not only electric but facilities ancillary and furnaces also a broad range of metallurgical and technologies.operational JP Steel Plantech Co. Plantech Steel JP

Ecological and Economical Arc Furnace (ECOARC™) Solutions

Products ECOARC™, the ecological and economical arc furnace developed independently by Steel Production Cost Reduction Plantech, is filled with innovative technology. It comes with advanced scrap preheating technology that eliminates the white smoke and foul odors generated when melting scrap

Ironmaking metal, and addresses environmental requirements of the future. Furthermore, it is equipped with melting technology that achieves higher productivity than conventional electric arc furnaces. BOF EAF 100kWh/t 1.5% 1.0kg/t Reduction of power Improvement of metal A unit consumption of

Continuous Casting consumption yield electrode of about

Installation of the ECOARC™ can be realized an early recovery of the investment costs, and an increase in revenues. Although, the installation of the preheating system would increase initial costs in the short term, however, Long Products Rolling it will provide high investment returns, and customers will be able to enjoy high investment returns by dramatic decrease of production costs, and increase in high revenue. You would feel the benefits of this investment immediately after installation through the phenomenal Flat Products Rolling Products Flat performance exhibited by the ECOARC™. *The Graph shows Investment-Profit line of 100 million ton / year plant

Customer comments

Strip Processing Lines Plant Manager of the steelmaker in Thailand “We are producing reinforcing steel bars to be used in a high-rise building. ECOARC™ is a strong weapon to become one of the most competitive producers in Thailand from the viewpoint of production cost. We hope to increase of greater domestic shares in a future.”

20 JP Steel Plantech Co. Products Ironmaking BOF EAF Continuous Casting Long Products Rolling Flat Products Rolling Strip Processing Lines 21 . Not only dioxins but 3 Technical Information Technical High-efficiency Technology Melting GREEN STEEL TECHNOLOGY STEEL GREEN dioxins of decomposition and decomposition The combustion gas exhaust an through reduced are exhaust the in chamber quench rapid and chamber gas duct system,which realizes dioxin emissions of not more than 0.1ng-TEQ/m Preheating scraps with high-temperature exhaust exhaust high-temperature with scraps Preheating gas is possible because thepreheating shaft rigidly and directly are chamber melting and present, continually are scraps the so connected, from the steel preheating to areas. of preheating high-temperature enables This the scraps, resulting in a significant reduction of consumption. power Themelting chamber is sealed off from outside prevent to theair, excess air inlet. it prevent temperature high under scrap of oxidation over preheating. As the ECOARC™ keeps always flat bath operation, improved. significantly is consumption electrode to necessary facilities electric the Furthermore, meet power quality regulation can be drastically unnecessary even not may it on reduced regulation. required on depending also a volatile material that causes foul odors and dispersal the and decomposed be will smoke white of them are also prevented. The furnace prevents diluting of exhaust gasses. Therefore, the CO within the exhaust gas can be used consumed. gas fuel of amount the reducing fuel, as Flat bath operation dramatically reduces noise during operation. The reduction of power reduction the to contributes also consumption power during gasses greenhouse of emission of generation. N 3 % 0 4 reduction of dust emissions dust reduction of TEQ/

N 3 ng- m than 1 . Dioxin emission of not more 0 % 0 gasses 3 during preheating scrap reduction of greenhouse greenhouse of reduction Can reuse the existing power supply facilities Can reuse the existing foundation Can reuse the existing water treatment facilities equipment auxiliary existing other the reuse Can Can reuse the existing building 40% reduction of dust emissions dust of reduction 40% operation under noise of reduction 15dB 40% reduction of flicker levels Elimination of white smoke and foul odor generated Reduction of greenhouse gasses greenhouse of Reduction Dioxin emission of not more than 0.1ng-TEQ/m ❷ ❸ ❹ ❺ Existing facilities can be reused when install the ECOARC™ system, it will contribute significantly the to reduction. cost investment initial ❶ ❸ ❹ ❺ ❻ Installation of theECOARC™ will dramatically reduce impact. environmental the ❶ ❷ Customization Environmental Friendliness Environmental JP Steel Plantech Co. Plantech Steel JP

Next Generation Ecological and Economical Arc Solutions

Products Furnace (ECOARC light™) Production Cost Reduction ECOARC light™, “the next generation ecological and economical arc furnace” has been

Ironmaking developed to dramatically improve your existing conventional type EAF, through converting the existing furnace. ECOARC light™ succeeds ECOARC™ keeping all of its merits. ECOARC light™ saves initial cost and shortens the construction period, compared with ECOARC™ by simplifying the scrap charging system and reusing your existing facilities. BOF

Bird's-eye view of ECOARC light™ EAF

70~80 % 1.0~1.2 kWh/t 1 kg/t

Continuous Casting Reduction of power Improvement A unit consumption of consumption of metal yield electrode of about

Features Comparison ECOARC™ with ECOARC light™

Item ECOARC™ ECOARC light™ Long Products Rolling

scrap charging bucket+ existing auto charging by skipcar method charging crane

charging count 10~12times/heat 5~6times/heat

structure of

Flat Products Rolling Products Flat furnace body and integral separated shaft

structure of tilting rigid flexible platform

tilting method locker roller or locker rail locker rail Strip Processing Lines volume of shaft 30% of charging volume same

burning + slow cooling dioxin, odor (by water-cooled duct) same counter-measures or rapid cooling (water spray)

standard 1.0~1.5months construction 2.5~3months (excluding period preparatory work)

22 JP Steel Plantech Co. Products Ironmaking BOF EAF Continuous Casting Long Products Rolling Flat Products Rolling Strip Processing Lines 23 Electric arc which furnaces, direct- use reduced iron, etc., as the main raw need ingredient, beto able melt to the raw materials, High Melting-speedDual Electrode DC Electric Furnace Arc which are continuously supplied during flat bath operation, at high speeds. The dual electrode DC electric arc furnace uses the turn coil at the bottom of the furnace intentionally to deflect the arc from two electrodes towards the center. This creates an optimal “hot spot” at the center of the furnace, resulting in a high speed. melting Production Cost Reduction the through reduced dramatically are costs Maintenance provision of sturdy facilities that have high a degree of reliability and a long service life. Customization Steel Plantech can design and provide a wide range of facilities, equipment auxiliary and furnaces electric type standard from that cater customers’ to needs. alsoWe provide fine-tuned services—from the diagnosis of and updating remodeling, to operations and equipment existing after-sales service—according the to facility’s stage in its lifecycle. Production Increase Volume Steel Plantech’s electric furnace equips large scale and high highest the realize to technology powered world class electric arc furnace provision. Conventional secondary refining furnaces furnaces refining secondary Conventional (ladle furnaces) are based on electric AC three have They technology. furnace arc arms electrode with masts independent and the lifting was individually controlled. Steel Plantech takes advantage of flat bath secondary of characteristic a operation, refining furnaces, and developed a secondary Solutions Reduce ladle refractory wear by minimized PCD power high and factor power high impedance, Low maintenance Easy Easy operation by the simple single electrode lifting system. Reduce electromagnetic induction loss byideal conductor placement Three-phase Collective Out-pile System Control (SMF) Furnace Refining refining furnace that controls three electrodes simultaneously, simultaneously, electrodes three controls that furnace refining naming it the Single-Mast Furnace (SMF). SMFs have a simple short-arc high-power-factor enable and configuration mechanical operation. ❶ ❷ ❸ ❹ ❺ With a singlelong arc at its center, a DC electric arc furnace can be an considered ultimate long-arc electricAC arc furnace with no DC Electric Furnace Arc (DC-EAF) electrode PCD. The turn coil system at the bottom of Steel Plantech’s DC electric arc deflection arc perfect provides furnace control as well as powerful molten steel stirring. with equipped are they Furthermore, bottom maintenance-free long-life, a (2,000-4,000 charges). electrode DC largest the delivered Plantech Steel electric arc furnace in the world. Steel Plantech is a pioneer in high- efficiency, high- long-arc impedance electric furnaces. A well-balanced body design, improved panels water-cooled Technical Information Technical AC Electric Furnace Arc AC (AC-EAF) Steel Plantech’s electric furnaces for steelmaking are core products succeeded from JFE Engineering (formerly NKK). Its abundant experience as a steelmaker in other (or words, a user) in addition technical to know-how gleaned from experience in the design and engineering of electric furnaces for steelmaking, accumulated since 1968, enabled the provision not only ofelectric arc furnaces and auxiliary equipment, but also a wide range of metallurgical and operational technology. Electric Furnace Arc and advancements in slag-foaming technology technology slag-foaming in advancements and high-impedance high-power, realized have operation. furnaces arc electric The latest electric arc furnace for ANSDK of Egypt meets a difficult demand: melt to the main raw material—DRI—at a high speed while achieving lower power consumption. With a maximum of 110MVA/t, it is one of the largest electric arc furnaces in the world, which goes far beyond UHP arc furnaces. JP Steel Plantech Co. Plantech Steel JP

Computer System for Steelmaking Facilities Technical Information

Products Automatic operation system is necessary for Melt Shop AUTO-ARC in order to achieve more efficient and stable operation. For the solution to such a needs, Steel Plantech offers

Ironmaking the AUTO-ARC (for Electric Arc Furnace) and AUTO- LF (for Ladle Furnace) as high quality and low price computer system. Both the AUTO-ARC and AUTO-LF provide not only automatic power input control but also a wide variety of

BOF functions for the improvement and standardization of your operations, including management functions such • Graphical and user-friendly operator guidance as monitoring and control of the facility, data collection, • Graphical and user-friendly operator guidance operation report, daily report, monthly logs, and • Data acquisition and storage of 10,000 charges • Generation of reports using Excel statistical analysis of the collected performance data. • Statistical analysis for operational EAF improvement • Hot spot control • Slag foaming guidance • Heat loss monitoring and control

Continuous Casting Solutions • Flicker control • Power demand control Production Volume Increase Production Cost Reduction Customization (Enhancement of Productivity) AUTO-LF Long Products Rolling Flat Products Rolling Products Flat

• Graphical and user-friendly operator guidance Suitable power patterns by scrap, The reduction of power and refractory Records of each heat event, power/ • Data acquisition and storage of 10,000 charges

Strip Processing Lines power, fuel additive and time slot can consumption can be achieved through auxiliary fuel/auxiliary materials, analytical • Generation of reports using Excel be pursued through the operational hot spot control, slag foaming guidance, values, etc., are collected, and data for • Statistical analysis for operational improvement data analysis function, which is based heat loss analysis and other functions more than 10,000 charges are kept. • Metallurgical and thermal model calculation on the pattern power control function distinctive to the AUTO-ARC. A diverse range of functions for • Bottom bubbling gas control and additional scrap charge/melt down the improvement of operations are • Alloy/flux calculation and injection control determination control. provided, including reporting functions Flicker control and power demand for operational logs, daily logs, and control can also be provided. monthly logs as well as statistical analysis functions to support the evaluation of 24 operations from past performance data. JP Steel Plantech Co. Products Ironmaking BOF EAF Continuous Casting Bar Steel Rolling Plate Rolling Surface Processing 25 ) QSP ( • Continuous Slab Caster • Continuous Bloom, Beam Blank and Billet Casters • Quality Strip Production Process Steel Plantech’s continuous casting casting continuous Plantech’s Steel facilities are the result of bringing together 50 years of metallurgical know- technological and knowledge how and experience in machinery and control. will continue We developing order in cutting-edge technologies meetto our customer’s high-level requirements. Continuous Continuous Casting JP Steel Plantech Co. Plantech Steel JP

Continuous Slab Caster Solutions

Products This is a facility for casting molten steel into semi-finished products(slabs) by continuously Product Quality Enhancement cooling, solidifying molten steel – which was melted and ingredients adjusted in a blast furnace, electric arc furnace, direct reduction furnace, etc. – and cutting them into given

Ironmaking lengths. The casted semi-finished products are then transported to the next process at the rolling facility. The casted semi-finished products can be in various sizes. Those with a thickness of between 120mm-600mm and a width of 700mm or more are called slabs. Final products from slabs include thin plates, thick plates and pipes. BOF EAF Continuous Casting High-Quality Slabs Long Products Rolling Steel Plantech’s continuous slab caster enhances product quality dramatically through various functions.

❶ Originally developed mold level control system, which suppresses molten steel level fluctuation Flat Products Rolling Products Flat ❷ Electro-hydraulic oscillator, which makes non- sinuous vibration that reduces friction within the mold possible ❸ Dynamic secondary cooling system, which realized the optimum thermal profile Strip Processing Lines ❹ Dynamic soft reduction system, which suppresses center segregation, and ❺ Decrease of internal and surface strain of slab through an optimum design of roll profiles.

26 JP Steel Plantech Co. Products Ironmaking BOF EAF Continuous Casting Long Products Rolling Flat Products Rolling Strip Processing Lines 27 Change in casting conditions casting in Change such as casting speed up ,etc. and always can achieve soft reduction Reset soft reduction position automatically position reduction soft Reset (Dynamic Secondary Spray Cooling System) Cooling Spray Secondary (Dynamic Recalculate solidification point dynamically point solidification Recalculate Dynamic Soft Reduction System Technical Information Technical SP-Dynamic Soft Reduction System Slab Caster (SP-DSR): Continuous Soft reduction is one of methods prevent to the center segregation of during cast slabs continuous solidification by secondary cooling. Steel Plantech proposes its SP-Dynamic Soft Reduction System (SP-DSR), which can always achieve the optimum soft reduction. The final solidification position and internal temperature required for soft reduction are continually calculated online by the SP-Dynamic Secondary Spray Cooling System during casting according changes to in operation conditions, such as molten steel water. cooling of amount and speed casting components, temperature, The SP-DSR system uses the information calculate to the segment directives roll movement out sends and pattern reduction best the for gap calculations. the on based Through a dynamic control model original Steel to Plantech, this system automatically the controls amount of spray in the zone cooling secondary after the mold, according theto optimum thermal pattern for the steel operating the and grade casting as such conditions, speed. The secondary cooling spray nozzle, which is installed in each segment, has a hydraulic width adjuster. In addition conventional to fixed spray nozzle cutoff valve type cooling system, we also offer a mobile spray nozzle type for which continuous adjustments the to spray width can be carried out according size to or steel grade. Dynamic Secondary Cooling Spray (SP-DSSC)System and Stepless Spray Width System Control make it possible cast to slabs/blooms/billets in various sizes. heavy plates. planning and on schedule start-up of the machine according plant to facilities’ conditions. in shorter shut down period based on a plan. careful and detailed durability and advanced maintainability of of maintainability advanced and durability equipment each and stepless spray-width control system portions unsteady minimizes type) preventstype) break outs over 3.0m/minute allows production of 200,000 tons or more per month per strand, strands of number the reducing significantly Dual-use twin/triple-caster machines that Wide rage of slab production for high quality Optimum and minimum period renovation renovation period minimum and Optimum Revamping work vertical to bending caster An improvement in operating rate high by The dynamic secondary cooling system A break-out prediction device (learning High-speed, stable casting at speeds of of speeds at casting stable High-speed, ❹ ❸ ❷ Responding to customer’s requirements, requirements, customer’s to Responding contributewe a superior to positioning of customers’ products, e.g.; Steel Plantech can supply various type of high- quality casters all to customers. (Vertical, etc.) unbending, C-Multi Circular, V-Bending, ❶ ❹ ❸ ❷ Cost reductions can be realized through through realized be can reductions Cost adoption of a Steel Plantech continuous slab caster. ❶ mm 0 0 6 Extra-thick casting capable min m/ 0 . high-speed casting high-speed 3 Cases 0 1 Vertical bending machine remodeling machine bending Vertical Customization Production Cost Reduction / Production Increase Volume JP Steel Plantech Co. Plantech Steel JP

Continuous Bloom, Beam Technical Information

Products Blank and Billet Casters Electric Servo Oscillation System (Hydraulic system is Bloom, beam blank and billet casters continuously not required)

Ironmaking cast molten steel into semi-products (bloom, beam Although the blank, billet) of various sizes and shapes from various oscillating speed on conventional kinds of steel grades with cross-section smaller than mold oscillation slab semi-products. systems driven by electric In order to meet customers’ needs, Steel Plantech’s motor, only a casters highly excel in production efficiency and single wave form BOF (sinusoidal) of energy saving and realize various kinds and small the same stroke could be achieved. quantity production of high quality casting semi- The electric servo oscillation system makes it possible to control the wave form, stroke and products. oscillation frequency, so that molds can be freely vibrated. It is a technology that enables stable, high-

EAF speed casting by reducing friction within the mold by promoting the flow of powders and Solutions other lubricants through non-sinusoidal wave vibration. Continuous Casting Production Cost Reduction / 6.0m/min Product Range Expansion Production Volume Increase high-speed casting SP-Dynamic Soft Reduction System (SP-DSR): Adoption of Steel Plantech’s Steel Plantech has abundant continuous casting facilities experience in the development Continuous Bloom Caster Dynamic Soft Reduction System Soft reduction is Long Products Rolling makes it possible to reduce of multifunctional machines Change in casting conditions one of methods to production costs. for a wide variety of sizes and such as casting speed up ,etc. Recalculate solidification point dynamically prevent the center steel grades. (Dynamic Secondary Spray Cooling System) segregation of Energy-saving through Reset soft reduction position automatically ❶ and always can achieve soft reduction continuous cast sequentialized processes ❶ Billet (vertical, horizontal slabs during enabled by direct coupling and circular machines for solidification

Flat Products Rolling Products Flat by secondary to rolling machines. square, round, octagon and cooling. ❷ Power-saving through automated and serialized operational other shapes) Steel Plantech proposes its SP-Dynamic Soft procedures, and equipment monitoring system. ❷ Bloom size (not only small to large sizes but round also Reduction System (SP-DSR), which can always achieve the optimum soft reduction. Realization of productivity enhancement through possible) ❸ The final solidification position and internal improved capacity utilization and high-speed casting. ❸ Beam blank (maximum size of manufacture: temperature required for soft reduction are Strip Processing Lines ❹ Ensured maintainability through easy access to major 450×1,048x110mm) continually calculated online by the SP-Dynamic Secondary Spray Cooling System according to equipment and use of maintenance equipment and Dual-use slab/billet and bloom casters ❹ changes in operation conditions, such as molten failure diagnosis system. ❺ Blast furnace ordinary steel, electric arc furnace ordinary steel temperature, components, casting speed ❺ Stable casting and reduction of unstable parts through steel, special steel, and amount of cooling water. The SP-DSR system uses the information to mold-level control and optimum secondary cooling Learning-type break-out (BO) prediction device that ❻ calculate the segment roll gap for the best capabilities. prevents breakouts reduction pattern and sends out movement ❻ Reduction of energy and costs required for rolling ❼ Dynamic secondary cooling system and dynamic soft directives based on the calculations. through near net shape casting (castings close in shape reduction system to the final product). 28 JP Steel Plantech Co. Products Ironmaking BOF EAF Continuous Casting Long Products Rolling Flat Products Rolling Strip Processing Lines 29 Technical Information Technical Liquid Reduction Core Technology Hydraulic Oscillation System c i y t t c i l e t a i u r q e p drawability. change thicknesses during casting. during thicknesses change and between 900mm and 1,650mm in width 900mm 1,650mm in and between and Superior casting surface quality a parallel by mold. A dynamic secondary cooling system Can be adapted for cold rolling mills, which require deep The liquid core reduction function makes it possible to Slab sizes of between 60mm and 100mm in thickness Product Quality Enhancement Quality Product ❺ ❹ ❸ ❷ Steel Plantech’s quality strip production process (QSP) adopts parallel molds and utilizes liquid core reduction technology, to enable manufacturing of the world’s highest quality thin slabs. ❶ min m/ 6 Solutions of Vc=6m/min (achieved a casting speed of 8m/min at our test facilities), and although compact, it achieves a level of productivity that is equal regular to continuous casters.slab and the smaller energy consumption made possible by coupling directly rolling to mills enables a significant costs. facilities/production of reduction breakouts. The continuous caster enables a maximum casting speed The reduction in quantity of rolling mill-stands required The break-out prediction device (learning prevents type) The QSP is a mini mill process for the continuous production of high-quality coils from thin or medium- slab. thickness In the process, reheating furnace and quantity of rolling mill-stands can be significantly reduced for producing thin strips frommolten steel. Steel Plantech’s QSP is capable ofproducing the highest-quality thin slab with superior casting speed compared the to other process of thin slab casters. Process (QSP) Process Quality Strip Production Quality Production Strip ❶ Production Cost Reduction ❷ ❸ JP Steel Plantech Co. Plantech Steel JP

Section Rolling Mill

Products Rolling mills are facilities that carry out a series of processes including rolling the billets, blooms, slab and beam blanks – extracted from the reheating furnace – into the prescribed size and correcting any bending,

Ironmaking cutting them into given lengths, then piling or bundling as needed for shipment. The rolling mills offered by Steel Plantech, with its rich track record of supplying steelmakers in Japan, can meet demanding requirements in terms of production efficiency and product precision. BOF EAF Continuous Casting Bar Steel Rolling Steel Bar Plate Rolling

Surface Processing Long Products Rolling Steel Plantech has a track record of supplying high- • Section Rolling Mill • Bar and Wire Rod Mill quality, high-precision rolling mills of any range. • Shifting Reverse Mill We will continue to provide, in all of the rolling • Roller Straightener mills required by our customers, state-of-the-art technology of the highest levels at competitive prices.

30 JP Steel Plantech Co. Products Ironmaking BOF EAF Continuous Casting Long Products Rolling Flat Products Rolling Strip Processing Lines 31 Reversing Rolling Reversing Mill Technology Stand Pass Line Adjuster In the case of universal rolling mills, there is a need always to guide non-rolled materials through the center of the stand. In the past, the material was guided the to center of the stand by lowering or raising the head and tail ends of the rolling mill. However, this had an adverse effect on shaped steel go materials the because measurements into the roll bite while going up and down the slope. With this device, it is possible maintainto the table height in a horizontal position and adjust the height of the stand centerto it. This allows non-rolled materials beto continually guided horizontally into the roll bite. This is a rolling method in which two or three universal rolling mills and 2Hi rolling mills are combined manufacture to production Although steel. shaped the efficiency declines,it allows for efficient use of space through the compact layout of the line. production Technical Information Technical Hydraulic Roll Gap Control Device In shaped steel of the past, the adjustment of roll gaps was usually carried out through the electric screw-down method. However, in years recent in demand higher the with terms of sizetolerance, the need control to roll gaps even more closely began arise. to gap roll hydraulic speaking, Theoretically control allows the mill modulus be to infinite. By combining it with a profile meter for automatic hydraulic roll gap control, this device will contribute improving to the measurements. steel shaped the of precision Highly productive rolling can be carried out by setting up as many rolling mills(2Hi mills or universal rolling mills) in a straight line as there are rolling passes for non-reversible rolling. It is a method that isoften applied for rolling small predominant steel.The shaped medium-sized to style is the stand-exchanging method through which the roll is exchanged in its stand. Swing-open Device Yoke This is a device for universal rolling mills that allows the yoke swing to open on the roll exchange side for faster roll changes. It contributes to times. exchange roll of shortening the Tandem Rolling Mill Tandem Technology gap control adjuster offset device rolling Product Quality Enhancement & Production Increase Volume The precision of the measurements of of measurements the of precision The manufactured being steel shaped the the through enhanced be can combination of a high-rigidity mill, various roll chock locking devices, roll and functions adjustment position functions. optional • Universal rolling mill with hydraulic roll • Universal rolling mill with mill pass line • Universal rolling mill with vertical roll • Vertical roll drive universal rolling mill • Universal rolling mill capable of UE Solutions Steel Plantech has accumulated a rich track record in all types of rolling mills. Using this as a basis, can we design and propose flexible rolling mill lines that are suitable for variousplant layouts. Furthermore, carrying by out equipment diagnosis of your existing rolling mill, can we examine the possibilities regarding the expansion of grades. steel and sizes production your boost also can necessary as Revamping the capabilities of your rolling mills. Customization JP Steel Plantech Co. Plantech Steel JP

Bar and Wire Rod Mill

Products Steel Plantech provides the Bar and Wire Rod Rolling and thereby greatly reduces the energy consumption, Production Volume Increase System that meet variety of customer needs. the Water Quenching System which helps in enhancing For example, we provide solutions that meet customer the strength of bars, and Endless Bar Rolling System

Ironmaking needs such as the Slit Rolling System and the High (EBROS™) which significantly boosts yield. Speed Mill (40m/s) which increase productivity, the Moreover, we can suggest and provide a package Hot Direct Rolling System which is directly connected solution by supplying integrated lines of electric arc with a continuous caster, not via a reheating furnace, furnaces, continuous casting facility and rolling mills. BOF EAF

Continuous Casting ~ % % % 10incre7ase5 im2prove- i1nc5rease ment depending on size mix in operation in production volume of yield ratios rate

Solutions EBROS™ stands for Endless Bar Rolling

Long Products Rolling System. Its objective is to enhance productivity and yield ratios. Simply put, the function of the EBROS™ Production Volume Increase High speed rolling technology finish.Additional advantages are easier is to weld the heads and tails of the Increased production volume and stable roll exchange and maintenance. billets that are extracted at constant operations become possible through Flat Products Rolling Products Flat High Speed Dividing Shears (HSDS) intervals from a reheating furnace, and high speed rolling technology. Ordinarily, shears were start-stop types, to create a billet of unlimited lengths. Block mills which began moving when the shearing • It enhances productivity by doing Using a block mill, which drives multiple point arrived. However, there was a away with gap time rolling mills and has been used on limit to the speed of the blade rotation • It does away with cropped items or

Strip Processing Lines 100m/s class wire rod lines, as the bar (shearing speed) because the blades items of irregular lengths steel finishing mill, will achieve speeds went from a standstill then began • It reduces miss-rolls and enables far beyond the finishing speed of about rotation and acceleration. Continuous approximately uniform quality 20m/s that was the limit of conventional rotating shears were adopted for the mills. Rolling using ultra-hard rolls HSDS system, enabling faster shearing m/s 20~40 provides advantages such as precise speeds. This makes stable shearing Speeding up of finishing speeds measurements and enhanced surface possible at even faster rolling speeds.

32 JP Steel Plantech Co. Products Ironmaking BOF EAF Continuous Casting Long Products Rolling Flat Products Rolling Strip Processing Lines 33 symmetrical screwdown of two rolls Quick roll change by exclusive changing device High measurement control technology control measurement High Simple configuration and high rigidity SPCL Chockless Stand -Ultra High Rigidity Stand The chockless stand does not have a chock, and has an extremely rigid structure. The mechanism makes it possible adjust to the spaces of the upper and lower rolls symmetrically with the pass line by using the worm screw turn to the eccentric sleeve that has been built into the rollaxis. • High rigidity mill without roll jumping • Constant pass line at the precise level by change stand • Independent • • High reduction rate and high productivity • Allows exceptionally easy rolling • Improves quality of products Slit Rolling Multislit rolling methods include 2-slit, 3-slit, and 4-slit rolling.2–slit rolling is currently the mainstream method, providing stable quality and even Furthermore, systems. measurement good achieved be can efficiency production higher technology. up speeding through 3-slit and 4-slit rolling allows production volume to be increased even with a small number of rolling mills. Slit rolling is also suitable for revamping a low productivity 2-slit line mill a high to productivity mill with greater production volume while keeping same. the mills rolling of number the 4-Roll Mill Sizing s l s a l o r l a

l e m o t n t s w o o i t b

d a c d a u t n r o r t a

o s d m e l p n p e n h o o t p t a

s t u y y g t y c b n

r s i d e S g e t l r g s r n n u d n i i l t o n n l i n p o p g r c i p y s

i i l l l s u h a u u s S - g a o f i u a s l r e o e e d n r , h u y a e n t l h k s i l - e a t p c Equal load is applied on the bearing Serviceability improved by removing Suitable for automated stand exchange. stand automated for Suitable u Fixed pass line that enables stable rolling Shim adjustment, carried out at the roll shop The same position is securely maintained This results in a more balanced The weight has been trimmed, creating The area on the bearing that receives the n n d o Buttress screw thread used at the rolling The midsection of the rolling screw shaft Housingless screw shaft screw → even if a strong rolling reaction force is applied. is secured on the pass line → construction than when the lowerportion of the rolling screw shaft is secured. chock the in embedded → because the chock tilts in accordance with roll slack, extending the life of the bearing placed in the spindle support → where stand, inner the from hydraulics conditions are harsh for hydraulic piping due water, scaling to and miss-rolls → the possibility that a larger stand canbe adopted in the rolling mill yard where there is a limit on the crane capacity. points → the extending wider, becomes pressure life of the bearing. → → unnecessary diameter, roll the to according even when there is no inner stand in place in stand inner no is there when even → i m Self-aligning mechanism (spherical seat) seat) (spherical mechanism Self-aligning adopted been has balance roll Mechanical The hydraulic motor for rolling has been Upper area of the chock supported at two Structured so that the spindle is supported m o o i i h ❸ ❷ ❷ N ❶ ❷ C ❶ S ❶ W ❶ S Housingless Stand c Technical Information Technical The manufacturing of water-cooled reinforced steel is possible through an online heat treatment process in the rolling mill line. There is no need add to expensive alloy elements vanadium and niobium. Placing a flaw detector right behind the finishing mill has made it possible track to the position of surface flaws on deformed steel bar products. Operators can easily find where the flaw is, thereby it can significantly reduce defective products mixed in. Online Detection Flaw System Controlled Water-cooling Water-cooling Controlled Device 0 Reheating Furnace Fuel Costs Fuel Furnace Reheating HDR (Hot Direct Rolling) is a system where the billetfrom a continuous casting facility is conveyed through roller table and directly input into a mill without being reheated. It is an technology. energy-saving excellent For the realization of this HDR system, capabilities engineering comprehensive casting continuous and furnaces for and rolling facilities are required. Such casting high-temperature (1) includes technology; technology (2) minimize to the temperature decrease; and (3) optimal layout for delivery the to next process. SteelWe, Plantech, will make the comprehensive these of use utmost our meet to technologies engineering needs. customers’ Production Cost Reduction Production Increase Volume JP Steel Plantech Co. Plantech Steel JP

Shifting Reverse Mill Technical Information

Products In the case of conventional 3Hi Reversing Mills, the Full Automation material (blooms and billets) is laterally moved The reverse rolling and material handling utilizing a manipulator, sent into the next pass caliber (rotation) of blooms and billets are completely

Ironmaking automated. and rolled. On the other hand, in the case of a shifting reverse mill, the material is kept at the same place Chance Free Rolling while the rolling mill is shifted to the next pass caliber Horizontal/Vertical position for rolling. This prevents the generation of Combination Rolling flaws and twists on the material due to handling.

BOF Furthermore, unlike conventional rolling mills that required a manipulator operator each at the start and end, complete automation can be achieved with the shifting reverse mill by the placement of a turner. EAF

Solutions Continuous Casting

Production Volume Increase 2 or 4 passes with the H shifting reverse mill. Product Quality Enhancement ❷ It can contribute to chance-free rolling that By setting up the shifting stands for the enables rolling at a number of sizes from a Horizontal and Vertical stands in an H-V pair of rolls. sequence and rolling in reverse, it becomes possible to carry out chance free rolling through

Long Products Rolling (3) Measures have been implemented optimal caliber placement. to reduce the time required for mold replacement. Twist Free A variety of sizes can be rolled without the need ❶ Preparation of specialized grooved rolls for each to exchange rolls. size/shape in the roll pairs makes it possible 1 size roll in the H-V pass, 1 size roll in the H-V- to replace molds of different dimensions and V-H pass. A maximum of 4 passes in 1 roll family.

Flat Products Rolling Products Flat shapes within each size range easily. A maximum of 8 sizes can be produced in ❷ Mold replacement time is minimized by combination with changes in the guide position. (1) The rolling mill automatically shifts automation of housing replacement and roll for each rolling pass and aligns the replacement using a replacement cart and a backup housing. Eliminating the lateral movement roll caliber with the pass line. ❸ Guides can be placed in guide holders in advance, of rolled materials and enabling There is no lateral movement of the rolled ❶ making it possible to replace them holder and rectilinear rolling makes it possible to Strip Processing Lines material, so it is possible to reduce product all.Guide position can be changed with a holder warping and surface damage. shift mechanism, both online and offline. minimize the occurrence of product ❷ No device is needed to move the rolled warping, twisting, and surface damage. material, and the table width can be minimized, (4) It is possible to automate rolling Updating conventional 3Hi reversing giving the equipment an overall compact size. mills and minimize the workforce. mills will save space while realizing (2) There is a degree of freedom in The stand moves for each pass, and rolling is conducted using specialized grooved rolls, high efficiency. selection of the number of rolling passes. thereby eliminating the need to stop the line to ❶ The number of rolling passes can be freely move the rolling mill or adjust spaces between selected according to the rolling size and rolls, making it possible to implement full shape. From 2 to 12 rolling passes can be automation and minimize the workforce needed selected with the H-V shifting reverse mill, and for adjustments. 34 JP Steel Plantech Co. Products Ironmaking BOF EAF Continuous Casting Long Products Rolling Flat Products Rolling Strip Processing Lines 35 Technical Information Technical Single-sided/Double-sided support Single-sided/Double-sided pitch pitch/Variable Fixed Variable roll width rolling rolling/mechanical Hydraulic Types of Roller of Correction Types Machine Combinations of the following can be selected needs. to according ❶ ❷ ❸ ❹ es 5 times y about 2 minut b Shortening of roll exchange Production Cost Reduction Adoption of the en-bloc roll exchange method enables simplification of roll exchange operations. Additionally, the shortening of roll exchange time improves productivity. Furthermore, use of variable width rolls will contribute to the lowering of production costs. f g n n i e o s o n i t g e t e c a h t c t e h u f n f t g e d e i o c e d a r r R e t s p Solutions This is a facility for straightening any bending of rolled products. Roller Straightener In the past, roller straighteners with single sided-support were the mainstream. because However, of the growth in the of the size products, Steel Plantech provides roller straighteners with double-sided support in order to suppress the effect of axial tilting, which is a weakness of support. single-sided variable A with straighteners roller pitch roller straightener has been adopted in order to the during sides un-straightened of amount the reduce lengthwise straightening of products.We also have a track record in the installation of roll width variable mechanisms, and in the case of shaped steel, canwe handle up H1100. to Product Quality Enhancement Quality Product JP Steel Plantech Co. Plantech Steel JP

Cold Mill (TCM,CRM)

Products Steel Plantech proposes a cutting-edge tandem cold mill (4Hi/6Hi) according

Ironmaking to the customer’s needs. We can also provide total engineering, including auxiliary equipment such as utility facilities, inspection

BOF lines and roll shops.

Solutions

EAF Product Quality Enhancement The adoption of the SPEOS™ (Superior Profile with Edge Oriented Shifting) technology developed by Steel Plantech,

Continuous Casting realizes rolling technology that can both control a strip crown and improve edge drop. Furthermore, optimum, stable concentration control will be possible at the pickling line by utilizing the acid concentration control system.

We have provided not only the conventional 4-Hi and 6-Hi mills

Bar Steel Rolling Steel Bar which are produced based on our rich experience, but also state-of- Lineup the-art mills including Zoom-Mill™ and SPEOS™, which Steel Plantech has originally developed by making use of new technologies.

We will suggest the optimal type of rolling mills as well as their layout. ❶ Continuous pickling and cold rolling line that is sequentially connected with the pickling line ❷ 4-Hi reversible rolling mills that produce high-quality products Plate Rolling while cutting down the cost ❸ 6-Hi reversible rolling mills that are suitable for the rolling of thin materials of various types ❹ Combination mills that have a skin pass function too ❺ Zoom-Mill™ and reverse rolling mill that have high productivity Surface Processing Flat Products Rolling Steel Plantech, based on our advanced technological • Cold Mill (TCM,CRM) Technical Information SPEOS™ Crown • Zoom-Mill™ strength backed by our rich experience, provides plate • Plate Leveler A technology for achieving an optimum strip crown and reducing edge drop was developed by levelers, cold rolling mills and plate shears equipped • Plate Shear shifting the work roll given a special curve. This technology is being used in cold rolling mills (CRM) as well as tandem cold mills (TCM) and contributing to the higher quality of products and improved with our own innovative and unique technologies, yield in the sheet width direction. thereby helping our customers realize cost reduction • A single roll crown has a wide crown range, from broad to narrow. • When the roll shifts to the crown position in accordance with the strip width, the gap expanding and the production of high quality products. transitional zone (GETZ) is automatically set around the strip edges, reducing edge drop. 36 • In other words, a single pair of work rolls can control both crown and edge drop. JP Steel Plantech Co. Products Ironmaking BOF EAF Continuous Casting Long Products Rolling Flat Products Rolling Strip Processing Lines 37 Technical Information Technical Zoom-Mill™ Oriented (Zero Off-gauge Minimization) TheZoom-Mill™ rolling method was developed Steel by Plantech with the purpose of minimizing off-gauge sheets in reverse rolling applying by a leader strip and a spot welder. Zoom-Mill™ rolling improves off-gauge rolling ratios 1% by as compared to mills. rolling conventional In the case of 6-pass rolling, the length of the off-gauge portion ofthe coil periphery will usually be more than 10 meters. the useHowever, of the Zoom-Mill™ rolling method will enable a finish with meters. 2 than less at off-gauge the Because tensile force can be added from the tip of the chord when rolling, the Zoom-Mill™ rolling method is reducing for methods other to superior off-gauges during reverse rolling, with better threading stability, plate shape. and precision thickness Because the next strip is held above the threading on the outside tension reel while waiting for the rolled coil go to offline, there is no need wait wind to to rolls, making it possible decrease to processing time per coil even if the welding takes time. improved expect can you Therefore, productivity adopting by this method. Furthermore, it leads the to saving of generation the prevents it since labor of off-gauge small coils (pup coils) and does with away the need for tasks such as the extraction of small coils, disposal. and discharging strapping, ears 2 y Investment cost recovery time (average) eeks 2 w Shutdown period Shutdown ement % v Yield 1 o impr An existingcold rolling mill (CRM) can be led into a Zoom- Mill™. This allows increased productivity from an existing CRM while at the same time reducing production costs with minimal investment. Furthermore, it has been remodeled for use with the CRMs of other manufacturers. It is characterized the by fact that renovation ends with short shutdowns, making it possible recoverto the investment for renovation in a short amount time.of Customization % 6 Production increase effect increase Production % 4 . ement 1 ~ 0 enhanc . Solutions 1 extraction process, realizing a reduction in required processes. ordinary cold rolling mills, ensuring a high production volume. Removing the Pup Coil has done with away the Pup Coil Less time is required exchange to a coil as compared to in yield (as compared to conventional CRMs)

Steel Plantech can propose cold rolling mills (CRM) or state-of-the-art tandem cold mills (TCM) according to the customer’s needs. Furthermore, the ZOOM (zero oriented off-gauge minimization) function developed Steelby Plantech can be added improve to yield ratios and reduce production costs as compared to CRMs. conventional Zoom-Mill™ By adopting the Zoom-Mill™ developed Steel by Plantech, you can reduce production costs (reduction in off-gauge increase and quickly, investment the recover sheets), revenues. ❶ ❷ Production Volume Increase/ Production Cost Reduction JP Steel Plantech Co. Plantech Steel JP

Plate Shear Plate Leveler

Products Steel Plantech offers shears that can The SuPerLeveler™ was developed by JP Steel Plantech in 1998 as shear all types of steel, regardless equipment to improve the flatness of steel plates (6 mm to 50 mm of plate type, thickness, or width, thick) produced in plate mills. Warping generated in the leveler (surface

Ironmaking including high-tensile steel plates. preparation materials to increase horizontal precision) during correction is also completely corrected through infinity control of rigidity. This has made it possible to flatten TMCP steel plates, plates, and Solutions other steel plates that require straightening reaction, and which did not become stable using conventional levelers. Production Volume Increase BOF / Product Range Expansion Each of Steel Plantech’s shear devices, including crop shear, double-side shear, slitting shear, and end shear,

EAF contributes to the productivity Technical Information increase of a plate shear line. ❶ Available for plates with a thickness of up Double-side shear to 50 mm, width of up to 5,500 m, and

Continuous Casting material tensile strength of up to 1,200 MPa ❷ Easy, safe and quick exchange of shear knives by use of automated exchange equipment ❸ Low-maintenance design realizing effective maintenance cycle and shortening working time ❹ Suggesting efficient and optimal layout of plate shears Long Products Rolling Product Quality Enhancement Steel Plantech’s plate shears are devices with high performance. They incorporate a design that Flat Products Rolling Products Flat aims to achieve the optimal quality of shear plane and they have been created with production technologies based on our rich experience.

❶ Mitigating shear deformation, rollover and A new double-sided shear has been slip mark on shear plane by adopting optimal developed by Steel Plantech in order to Strip Processing Lines rolling cut motion realize a simpler assembly process and easier ❷ Realizing consistent and fine shear plane maintenance. quality with the use of high-precision knife gap We have also reduced the size of its structure adjustment equipment compared with the conventional triple-shaft, ❸ Providing plate shears with sufficient stiffness, triple-crank-type product, and hence it can which are designed based on reliable analysis meet the need to renew a shear in a seasonal simulation models plate shear line.

38 JP Steel Plantech Co. Products Ironmaking BOF EAF Continuous Casting Long Products Rolling Flat Products Rolling Strip Processing Lines 39 Bite correction control plate straighteningLP steel Becauseit is difficult for thin, rigid plates feed to the front edge of thick plates into the leveler, a control method called “bite correction” has intermeshing light a apply to implemented been when the leading edge is guided in, then apply the fullintermeshing after that. In this case as well, a constant, fixed roll gap can be maintained in the plate’s lateral direction, even if the reactive force of the light reduction and the full reduction of the leading edge differ. In the case of LP steel plates with differing lengthwise thicknesses, straightening the reaction also fluctuates, but regardless of how the reactive force changes during straightening, the SuPerLeveler™ can maintain the set roll gap, making it possible straighten to LP steel plates, and thereby significantly increasing the reliability straightening. of

Plate Edge Plate Center of Leveler of Center Plate width Plate laser sensors laser Plate In Plate Deflection Sensors Deflection Plate Out Plate Technical Information Technical Deflection Sensors Deflection There are 3 types of deflection that occur in deflection, vertical deflection, lateral levelers: each of Correction deflection. compression and through a hydraulic cylinder makes it possible to maintain a constant gap between leveling rolls. With conventional levelers in particular, lateral deflection, for which the preset type prevented during amounts correction to changes straightening, is measured with a deflection making frame, lower the inside installed sensor it possible achieve to accurate corrections with the between installed cylinder hydraulic the carriage. roll the and frame upper Off-center straightening In addition the to sensors that are ordinarily the inside installed are sensors deflection used, the with accordance in frames lower and upper sensors laser and cylinders, crowning of number installed on the front surface of the leveler are used enable to off-center straightening for which the plate does not need be to centered. Dynanic crowning control Dynanic crowning y % 0 ease b 5 Incr a maximum of The plate thickness plate The range % y a 0 ease b 0 maximum of 1 Incr in accordance with the anticipated before immediately amount particular, In begins). straightening flatnessis improved significantly within a range of approximately 1.2 m from the front and rear ends, compared to levelers. preset The plate yield stress range Uniform correction of areas in which the front and rear edge straightening reaction fluctuates sharply as well as constant areas has been made possible, as has the reduction of residual stress in steel plates. This enables the manufacturing of steel plates that do not become deformed after cutting. “High-load-capacity backup roll,” “bite “bite roll,” backup “High-load-capacity functions other and control,” correction developed JP by Steel Plantech have correctable the expanded significantly levelers. conventional to compared range Solutions Product RangeProduct Expansion Production Increase Volume The SuPerLeveler™ utilizes the “dynamic crowning method” to control roll gap deviation throughout the entire steel plate, something that was not possible with conventional “preset levelers” method (a in which the amount of lateral deflection is set Product Quality Enhancement Quality Product JP Steel Plantech Co. Plantech Steel JP Strip Processing Lines

Steel Plantech leverages its world-class • Continuous Annealing Line (CAL) Continuous Annealing Line (CAL) • Continuous Galvanizing Line (CGL) technological capabilities and proven track • Annealing and Coating Line (ACL) Products record to supply strip processing equipment • Color Coating Line (CCL) This line facility changes the crystal structure of steel sheet by heat • Temper / Skin Pass Mills that meets customer needs. The reliability of • Tension Leveler treatment, and improves properties such as , strength, and our various strip processing lines and the high elongation. It integrates the 5 processes of cleaning, heating, cooling, Ironmaking quality of the manufactured products are highly temper rolling, and refining, and carries them out in a single line, thus recognized by our customers around the world. saving space and lowering costs. Steel Plantech’s CAL for high-quality cold-rolled sheet for industries around the world including the automobile and household appliance industries. BOF EAF Continuous Casting Bar Steel Rolling Steel Bar Plate Rolling Surface Processing

40 JP Steel Plantech Co. Products Ironmaking BOF EAF Continuous Casting Long Products Rolling Flat Products Rolling Strip Processing Lines 41 g n i l o g o n i g h t c n i c e j h n - c e s n u a e Technical Information Technical u r q d g e i l q t l p a a o Uniform strip temperature through a unique gas-jet nozzle shape temperatureStrip controlled through adjustment the the of gas jet velocity in the strip’s width direction Cooling capacity raised through a high concentration of R rolls water-cooled through quenching Rapid gas-jet auxiliary through temperature strip Uniform nozzles costs operating of Reduction W Makes the manufacturing of ultra-high strength steel for quenching ultra-rapid by possible automobiles Rapid Cooling System R of strip temperature multi-reflection a by type pyrometer. For this reason, have we a track record of delivering ourline many to customers around the world. Three kinds of cooling processes are adopted: rapid gas- rapid adopted: are processes cooling of kinds Three jet cooling, roll quenching and water quenching. This makes it possible produce to a wide range of cold-rolled cold-rolled drawing deep to sheet common from sheet, sheet. strength ultra-high-tensile and sheet annealing continuous high-speed of Adoption productivity. improves technology Solutions Production Increase Volume Product RangeProduct Expansion High-quality cold-rolled sheet for automobiles can be tracking integrated for systems of because produced control, uniform temperature profile (heating/cooling) in the width direction and accurate measurement Product Quality Enhancement Quality Product JP Steel Plantech Co. Plantech Steel JP

Continuous Galvanizing Line (CGL) Solutions

Products The purpose of the Continuous Galvanizing Line (CGL) is to apply a coat of zinc onto the surface Product Quality Enhancement of steel sheets in an effort to increase their corrosion resistance. There is a wide range of control of zinc coat thickness, and the galvanized steel sheets are used for a broad range of purposes,

Ironmaking including construction materials, automobiles and electrical appliances. Steel Plantech’s CGLs possess unsurpassed functions that are highly evaluated by customers around the world. BOF EAF Continuous Casting

High-quality galvanized steel strips for use in

Long Products Rolling automobiles can be produced through the use of air knife and highly precise zinc coating weight gauge. That quality is attested to by our track record of supply to many customers around the world. Flat Products Rolling Products Flat Strip Processing Lines

42 JP Steel Plantech Co. Products Ironmaking BOF EAF Continuous Casting Long Products Rolling Flat Products Rolling Strip Processing Lines 43 through a unique gas-jet shape nozzle through the adjustment of the air volume in the strip’s width direction through a high concentration of hydrogen • Rapid gas-jet cooling • Uniform strip temperature • Strip temperature controlled • Cooling capacity raised Technical Information Technical Rapid Cooling Technology Control of Zinc Coating Zinc Amounts of Control • Highly-functional galvanizingfacility • Capable of thin zinc-coating products • Non-contact baffle plate control Optimum setup of roll crowns Layout of optimum steering rolls Optimum control of tensile forces Production Increase Volume High speed stable operation allows for greater to compared as enhancement productivity products. conventional ❶ ❷ ❸ through rapid gas jet cooling materials construction Single-pot/double-pot layout Single-pot/double-pot Hot-dip galvanized steel strips (GI) A lineup of GF and GL production facilities for coater in-line an of Incorporation High-tensile strength products for use in automobiles automobiles in use for products strength High-tensile ❶ ❷ ❸ ❹ ❺ Product RangeProduct Expansion JP Steel Plantech Co. Plantech Steel JP

Annealing and Technical Information

Products Coating Line (ACL) Heating Control

Ironmaking The Annealing and Coating Line (ACL) produces magnetic steel sheets and strips to make electrical equipment with high efficiency, compactness, high precision, and high reliability.

BOF Steel Plantech’s ACL adopts a horizontal pass system for the high temperature Optimal placement of burners and electric annealing of thin sheets under low tension heaters as well as zone load control are realized (heat treatment for removing internal to allow heating and soaking at annealing of over 1,000℃. strain and giving the materials superior EAF electromagnetic properties). Cooling Facilities

Continuous Casting Solutions

Product Quality Enhancement Production Volume Increase The ACL can be used for annealing temperatures of over Long Products Rolling 1,000℃ as needed according to variety. It will stabilize quality at a high level through state-of-the-art furnace control and high-precision tension control. What is more, it also offers quality assurance devices such as an online magnetic property measurement, coating thickness meter, Flat Products Rolling Products Flat sheet thickness meter, sheet width meter, and surface The optimal cooling sequences have been achieved through the combination of a Brick defect meter. Zone, Cooling Tube Zone, Slow Jet Cooling Zone and Fast Jet Cooling Zone, which allows slow cooling and rapid cooling to be finely controlled. Strip Processing Lines

Highly efficient production would be achieved because the coating, baking, and cooling equipment are incorporated into the line. Furthermore, productivity can be enhanced through accurate tension control and stable operation of the line.

44 JP Steel Plantech Co. Products Ironmaking BOF EAF Continuous Casting Long Products Rolling Flat Products Rolling Strip Processing Lines 45 Bridle mechanical roll drive technology enabling high- precision elongation control This drive mechanism utilizes differential gear reduction and 2 motors (main motor elongation provide to motor) elongation and control which has a degree of precision between 30 and 50 times that of an individual drive. The precision of the rotational speed of motors has improved recently, but this technology is being used in production lines require stablethat elongation control. Technical Information Technical The device uses skin pass rolling improve to the mechanical properties and surface texture, and improve flatness, in order form to materials such as hot-rolled steel sheets, cold-rolled steel sheets, stainless steel plates, and aluminumplates into final products. Since it conducted testswith its own test equipment in 1965, Steel Plantech has continued developto theories and deliver actual devices. As a result, the company has delivered 63 skin pass mills worldwide up this to pointin time. Temper / Skin Pass Mills Temper In recent years, because of the advantages of of advantages the of because years, recent In simplifying processing with offline skin pass mills and high-tensionskin pass mill rolling, it has been a common practice install to skin pass mills on the exit side of stainless steel APL/BAL. In the case of stainless steel in particular, materials and rolls are easily damaged, so it is necessary move to the skin pass mill past welded operation. during damage causing without points achieveTo this, JP Steel Plantech utilizes its technology move to items past welded points during operation, and have a significant track delivery. of record Combined skin pass mill and technology tension leveler By combining the skin pass mill with the tension leveler, our greatest specialty, the skin pass mill canfulfill the role of improving mechanical properties and improving surface texture, and the tension leveler combined, can are improve devices plate the flatness, When roles. of division efficient an achieving thereby careful attention must be given when determining the positioning of the front, rear, and center bridle rolls, the number of rolls, and the motor capacity, and when proposing an operation method. JP Steel Plantech has a track record of delivering 45combined skin pass mill and tension leveler systems, and has the ability propose to the optimum solutions our to customers. Inline stainless skin steel pass milltechnology Technical Information Technical The manufacturing of double-coated, double-coated, of manufacturing The with sheets steel pre-coated double-baked used primarily resistance, weather good is appliances, home and construction in possible. An in-line tension leveler can also be installed sheets. steel straightened manufacture to Pre-coated Sheets Steel Solutions It is possible produce to high-quality pre- coated steel sheets through highly precise coating thickness control gauge backed by records. delivery of number large Product Quality Enhancement This is a pre-coating line that forms coats through advance application and baking ofcoating materials onto strips produced Continuous by Galvanizing Lines enhance (CGL; to corrosion resistance) and Continuous Annealing Lines improve (CAL; to properties, such as strength and elongation). It is an add-on for visual aspects of strips, such as color and gloss, as well as for protective elements, such as resistance. and corrosion weather Color Coating Line (CCL) Line Coating Color JP Steel Plantech Co. Plantech Steel JP

Tension Leveler Solutions

Products Tension levelers level and improve the flatness of materials such as hot rolled steel, cold rolled Product Quality Enhancement steel, stainless steel, aluminum, and specialized materials, and finish them into a final product. The range of the materials that can be used for leveling are those with a thickness of

Ironmaking between 0.05mm-8.0mm, a width of between 300m-2,300mm and a yield strength of between 50MPa-1,500MPa. Tests of various materials using original testing equipment have been carried out on Steel Plantech’s tension levelers since 1970. Theories have been constructed, tested, and supply of tension levelers made, with this repeated many times over the years. 194 sets have been supplied around the world, practically making Steel Plantech a specialist in

BOF tension levelers. The tension leveler is equipped with an optimum roll layout and an originally-developed wet system. This enables the product of steel sheets with only few marks on the surface from leveling force. EAF Product Range Expansion Continuous Casting Long Products Rolling Flat Products Rolling Products Flat 300~ 0.05~8.0 50~1500 mm 2300 MPa mm thickness width yield strength Strip Processing Lines The customers have various needs, so there are many different kinds of materials that need to be leveled. Steel Plantech provides tension levelers that are optimal for use with a wide variety of materials and specifications.

46 JP Steel Plantech Co. Products Ironmaking BOF EAF Continuous Casting Long Products Rolling Flat Products Rolling Strip Processing Lines 47 Tension Leveler with Leveler Tension Rotational Upper Frame Easy Maintenance for One of the characteristics of a Steel Plantech tension leveler is that the upper frame can be rotated 180 degrees enable to changes. roll upper quick This is a feature original Steel to Plantech and cannot be found in the tension levelers companies. other of Mechanical Drive Bridle for Rolls— Technology Enabling High Elongation Control Accuracy Differential gear reducer is used in this drive unit. It provides elongation rate control of a precision that is 30 50 to times greater to each of two motors—the main motor and motor. rate elongation This technology is used in ultra-fast lines and lines that requirehigh-grade surface quality. Tension levelers for aluminum and copper dependingmay, on the intended use of the materials, require the reduction of residual stress for the next process, such as processing and edging cutting, longitudinal chips. into The tension leveler with a multi-roll unit was purpose. this for developed The quality of the surface of the finished product is particularly severe for stainless steel. Marks occurred by leveling force were the biggest challenge in the case of tension steel. stainless for levelers Our technology for the resolution of this problem was jointly developed with Japanese users, resulting in this leveler. It is currently the de facto standard in Asia of steel. stainless for levelers tension with a Leveler Tension Multi-roll Unit for Reduction Residualof Stress and Stabilization Bow of Wet Leveling Technology Technology Leveling Wet for Levelers Tension of Stainless Materials Technical Information Technical Tension Leveler Roll Roll Leveler Tension Helper technology Drive In 1986, we supplied the to Nippon Steel & Corporation, Hikari Steel Stainless Sumikin Works, a tension leveler with tension of 50 tons, which was the highest at the time. Currently, we are producing a tension leveler with the world’s top-level tensile strength of 100 tons (world’s top class) for use with materials. 1,500Mpa tensile super-high In the case of tension levelers for stainless materials, specialized and aluminum steel, wet leveling is sometimes adopted prevent to marks on the surface made from leveling force. However, if the materials are soft or if the requirements for the quality of the surface are very severe, there is a need drive to the roll that comes in contact with the board in order preventto roll slippage. Steel Plantech is the only company that possesses the technology for driving the small diameter roll of a tension leveler. technology, placement roll of Because resulting from tests on various materials using technologies, differential and facilities, test such as the helper drive, Steel Plantech is the onlycompany in Japan that currently makes levelers. tension In the past, the maximum speed was 1,200mpm, but a tension leveler with an even 1,340mpm, the among of speed line higher fastest in the world, was supplied in 2006 to JFE Steel East Japan Works (Chiba). Tension Leveler with Leveler Tension Ultra-high Tensile Strength Ultra-fast Tension Leveler Leveler Ultra-fast Tension Technology In the past, have we supplied a tension leveler with a line speed of 1,340mpm, among the fastest in the world. Furthermore, have we supplied 6 tension levelers with line speeds of 1,000mpm. than more Production Increase Volume JP Steel Plantech Co. Plantech Steel JP

Contributing to The Environment Products Focusing on extensive CO2 reduction and energy savings

Ironmaking Steel Plantech has accumulated the world’s top-level environmental and energy-saving technologies. We are contributing to steel mills world wide by

proposing solutions and supplying facilities for energy-saving, waste energyrecovery, CO2 reductionandenvironmental protection.

❶ Coke Dry Quenching (CDQ) ❹ OG System (BOF Off Gas Cleaning and Recovery System) Coal Iron ore Coking coal Molten BOF steel

EAF Coke-oven gas/COG (sensible heat recovery, fuel preheating, etc.) Continuous Casting Coke Dry Quenching (CDQ) ❷ Waste Heat Recovery System (WHRS) for Sinter Plant 1 (steam recovery, power generation) ❺ Mechanical Stirring Equipment Coke oven (Desulfurization) Sintering machine Long Products Rolling Top-pressure Recovery Sintered ore Coke Turbine (TRT) (power generation) ❸ System for waste plastic pretreatment and plastics utilization for BF and kiln fuel Waste Heat Recovery System (WHRS) for Flat Products Rolling Products Flat Sinter Plant Waste heat (combustion air recovery from preheating, steam stove recovery, power (combustion air generation) 2 preheating) Strip Processing Lines

Hot blast stove System for waste plastic pretreatment and 3 plastics utilization for BF and kiln fuel

Blast furnace

48 JP Steel Plantech Co. Products Ironmaking BOF EAF Continuous Casting Long Products Rolling Flat Products Rolling Strip Processing Lines 49 2 Steel Plantech’s proprietary technology proprietary Plantech’s Steel technology energy-saving General Cold-rolled Cold-rolled products Hot-rolled Hot-rolled products reduction efforts with the following services: Waste heat recovery from kiln producing iron reduced Biomass energy into fuel steelmaking 2 8 9 Annealing furnace Annealing emissions reduction after project implementation project after reduction 2 2 Waste heat recovery heat Waste fuel and air (combustion preheating) Electric arc furnace waste heat ❼ system recovery Cold rolling Cold Hot rolling Steel strip cold extraction 1. Introduction and proposal of proper energy-saving measures energy-saving proper 1. of proposal and Introduction 2. Formulation, feasibility studies and execution of a series of procedure for Japan's Joint Crediting3. Consulting Mechanism on verification (JCM) and monitoring of CO Hot direct rolling/ reduction) (fuel HDR Examination of environmental and energy-saving situation for plants and proposal of solutions of proposal and plants for situation energy-saving and environmental of Examination Support for steel mills in their efforts reduce to CO ❶ ❷ Support Mills the Steel for Energy World’s and in Saving Reducing CO Steel Plantech supports the world’s steel mills’ energy savings and CO * CDM: Clean Development Mechanism, JI:Joint Implementation * PDD: Project Design Document Ecological and TM Heating furnace Heating ECOARC Economical Arc Furnace Arc Economical ❻ Regenerative burner Regenerative Furnace casing reconstruction (improved heat transfer efficiency by extending furnacelength and using bridgewall) reduction) (fuel pattern heat in Improvement insulation thermal pipe skid in Improvement Mechanical Stirring Equipment Equipment Stirring Mechanical (Desulfurization) 5 OG System (BOF Off Gas Cleaning and Recovery System) Hot charge Hot rolling process/ HCR(fuel reduction) 4 Continuous Continuous casting Ecological and Ecological TM Converter Molten steel

Electric arc furnace waste heat system recovery ECOARC Economical Arc Furnace Arc Economical

Scrap, oxygen, auxiliary material

7 6 JP Steel Plantech Co. Plantech Steel JP

Technical Service Products Trust built by people and technologies and ties with customers

Ironmaking Steel Plantech offers through its Technical Service diverse services including after-sales service and pre-sales service. This enables customers to maintain their plants and equipment at the highest level and use them safely and securely. BOF Technical Service In order to enable customers to use Steel Plantech’s plants and equipment safely and securely, we offer after-sales service for delivered

EAF plants and equipment in a prompt and responsible manner. We also offer pre-sales service for a range of products. We supply to customers up- to-date and sophisticated plants and equipment Continuous Casting through collaboration among all relevant operational units of the company including units for sale, planning and special projects. Furnace shell revamping work Lime shaft kiln refractory reconstruction Long Products Rolling Flat Products Rolling Products Flat Strip Processing Lines

Overhaul of rolling mill reduction gears Renewal of segments for round beam blank casting plant Renewal of tension reel head of ETL

50 JP Steel Plantech Co. Products Ironmaking BOF EAF Continuous Casting Long Products Rolling Flat Products Rolling Strip Processing Lines 51 Parts supply, Technical Service Technical inspection andrepair and consulting Equipment diagnosisEquipment and revamping

echnical Ser f T vic

o e maintenance Equipment n o ti c

Visiting service n u f

Total Engineering Total designing Planning and and Planning Delivery construction Manufacturing and Operation guidance Engineering Head O ce: Kaneko No.2 Building 4-11F 2-6-23 Shin-Yokohama, Kohoku-ku, Yokohama 222-0033 JAPAN Phone: +81-45-471-3911 Fax: +81-45-471-4002 Osaka O ce: Shin Osaka Central Tower North 9F 5-15 Nishinakajima 5-chome Yodogawa-ku, Osaka 532-0011 JAPAN Phone: +81-6-6307-3851 Fax: +81-6-6307-3852

6th issue published September 2016