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THERMOTECH THERMOTECHNOLOGY GENERAL CATALOG Fusion of New Technology and Our Extensive Experience in Heat Treatment

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THERMOTECH THERMOTECHNOLOGY GENERAL CATALOG Fusion of New Technology and Our Extensive Experience in Heat Treatment THERMOTECH THERMOTECHNOLOGY GENERAL CATALOG Fusion of new technology and our extensive experience in heat treatment Fujikoshi's Thermotech Division has the heat treatment technology that supports the foundations of the world of manufacturing. In 1928, NACHI-FUJIKOSHI Corp. was founded to begin domestic production of cutting tools in Japan, starting by manufacturing hacksaw blades. In 1938, with the completion of its own steel mill, NACHI-FUJIKOSHI Corp. established full in-house production from materials to finished products. By capitalizing on techniques learned producing our own line of cutting tools, in 1961 we began production of salt-bath furnaces for heat treatment work. We then began developing our own technologies, and introducing some from overseas. Our production of industrial furnaces and auxiliary equipment was based on our vacuum heat treatment technologies, balancing the needs for heat treatment work with environmental impact. Welcome to a guide to NACHI-FUJIKOSHI Corp.'s multifaceted capabilities in processes for full in-house manufacturing from materials to finished product. Our aim is to support the needs of our customers with total service; from manufacturing and sales to maintenance and technical support; working to advance heat treatment technologies. 1 THERMOTECH DIVISION History 1961 Salt-bath furnace production started in-house 1963 Salt-bath furnaces sales started 1968 Introducing American technologies for atmosphere furnaces and aluminum furnaces 1974 Vacuum heat treatment furnace production and sales started 1981 L-TEQ (low temperature hardening) process technology released 1983 Ion plating equipment production and sales started 1992 Vacuum degreasing equipment production and sales started 1999 EN-CARBO NVC series of vacuum carburizing furnaces sales started 2001 HCD ion plating equipment sales started 2003 Cell type vacuum carburizing furnace developed 2004 Short-cycle vacuum degreasing equipment sales started 2007 Small-batch type vacuum carburizing furnace sales started 2011 Clean Master-J vacuum degreasing equipment sales started Outline Thermotech Division of NACHI-FUJIKOSHI Corp. Location 176-12 Ogake, Namerikawa, Toyama Prefecture TEL:076-471-2981 FAX:076-471-2988 Business operations Development, production, and sales of industrial furnaces, vacuum degreasing equipment, and ion-plating equipment. Maintenance services, heat treatment experimentation, coating work on consignment URL http://www.nachi-fujikoshi.co.jp NACHI-FUJIKOSHI Corp. Namerikawa Plant 2 Welcome to NACHI 3 THERMOTECH DIVISION Contents EN-CARBO furnaces Vacuum Product lineup Carburizing, Carbonitriding EN-CARBO Oil quenching Vacuum carburizing furnaces 5-6P Vacuum hardening Vacuum furnaces Tempering Brazing, Solution treatment 7-8P Furnaces High Bright High Bright Furnaces Hardening, Brazing Neutral atmosphere high-temperature hardening furnaces 9-10P Quick Master L-TEQ processing Quick Master Gas carbonitriding Drip-type multi-purpose Gas carburizing, Gas nitrocarburizing atmosphere furnaces 11-12P continuous furnace Mesh belt type Hardening, Tempering Mesh belt type Gas carburizing, Carbonitriding continuous furnace Continuous heat treatment facilities 13P lineup Industrial furnace Industrial furnace lineup 14P Clean Master Clean Master Degreasing Vacuum degreasing equipment 15-18P equipment Ion plating Melting type PVD Ion plating equipment Sputtering type PVD 19-20P services experimentation Heat treatment Thermotech Engineering Services Heat treatment experimentation services 21P coating services Consignment Consignment coating services 22P 4 Enhance added value in heat treatments EN-CARBO Vacuum carburizing furnaces What is carburizing Hardness distribution of hardness and carbon content of steel 1000 1.0 This heat treatment penetrates the surface of a metal with carbon ＳＣＭ４１５ to increase the carbon content before hardening to produce a hard Carbon content (%) surface and a moderate toughness inner. 800 0.8 It is widely used in auto parts, construction equipment parts, and 600 HV550 0.6 parts for many other machines. Hardness 400 0.4 Carbon content Hardness (HV) Features 200 0.2 Surface Inner ■ High-performance carburizing process 0 0 Elevates added value to heat treatment by doing processes that 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 are not possible with gas carburizing furnaces. Distance from surface (mm) Super carburizing Sample of super carburizing Increase surface carbon content by more than 1.4%, aggressivelyively dispersed carbides to increase product toughness and heatheat resistance. High-temperature carburizing Possible to raise carburizing temperature up to 1050 ºC with no metal parts in the furnace. Quality of super carburizing Material: SCM420H This can shorten the heat treatment cycle. Depth of effective hardness layer: 1.2 to 1.5 mm Surface carbon content: 1.4 to 1.5% Hardness: 760 HV or higher (at 0.1 mm) ■ Safe and clean environment 710 HV or higher (at 0.3 mm) Flameless structure. 300ºC after tempering 650 HV or higher Can really improve environment of heat treatment area by eliminating concern about fire. 1000 ■ Flexibility 170ºC tempering 900 Seasoning is not needed so start up and shut down of furnace is 300ºC tempering 800 easy. 760 HV or higher 700 (after 170 ºC tempering) ■ Lower running costs 600 650 HV or higher (after 300 ºC tempering) Lower heat loss, compared to gas carburizing furnaces, due to 500 insulation effect of vacuum. Hardness (HV) 400 1.2 to 1.5 mm Unmanned operation during night hours can greatly reduce labor 300 (550 HV or higher) costs. 200 0 0.5 1.0 1.5 2.0 Distance from surface (mm) Examples of heat treated products StateState of grain boundaryboundary oxidationoxidation Vacuum carburizing Gas carburizing Material: SCM420 Material: SCM420 Magnification: x400 Magnification: x400 5 THERMOTECH DIVISION All-encompassing series EN-CARBO furnaces Vacuum Furnaces High Bright Quick Master NVC-3 NVC-6 NVC-1/NVC-3 NVC-6/NVC-10 ■ Heating chamber and quenching oil tank has circular cross section ■ Perfect for mass production facilities in compact design with easy maintainability and hardenability for carburizing and carbonitriding ■ Excellent as a test furnace and for multiple products ■ Oil tank design focused on hardening performance continuous furnace Mesh belt type in small-lot production ■ Extremely high reproducibility of heat treatment quality Specifications ＮＶＣ-１ ＮＶＣ-３ ＮＶＣ-６ ＮＶＣ-１０ Effective dimensions (W×L×H mm) 400×400×400 460×620×550 610×950×610 760×1220×760 lineup Industrial furnace Treatment capacity (kg/h) 100 300 600 1000 Electric capacity (kW) 35 45 100 160 Installation dimensions (W×L×H m)*1 2.7×3.5×2.9 3.5×5.1×2.9 4.8×6.2×3.1 4.8×6.7×3.4 Main unit weight (tons)*2 8 10 15 18 Quenching oil capacity (L) 1100 3500 8000 10000 Clean Master Operating temperature (℃) 800～1050 800～1050 800～1050 800～1050 *1 Not including space for maintenance *2 Weight while dry Options Refining function Used for super carburizing, high-temperature carburizing, and reheating. equipment Ion plating Carbonitriding function Function for generating a nitride layer on the carburizing structure. Remote monitoring system Function for diagnosing malfunctions via a telephone line. Loading equipment Equipment for loading and unloading work from tray in furnace and other equipment. Automated system A fully automated cycle can be configured by combining the carburizing furnace and degreasing equipment, tempering furnace and stock table. Unloading services experimentation Heat treatment Layout diagram Loading NVC-6 NVD-6 ＥＲＤ-６ ▲ ▼ 10m coating services Consignment Unloading table Loading table Standby table 15m NVC-6 line 6 Producing surfaces without decarbonizing or oxidizing Vacuum furnaces Vacuum heat treatment furnaces What is vacuum heat treatment Features A workpiece is placed in a vacuum, normally of about 0.01 to 1 Pa ■ Supports a wide range of applications (abs) and heated. By heating in a vacuum atmosphere, finished Excellent for heat treatment for automotive parts and machinery surfaces have absolutely no oxidizing or decarbonizing. parts. Excellent for quenching, tempering, brazing, annealing, Also, bright heat treatment can be done easily because it is not solution treatment, and ageing processes. necessary to adjust the atmosphere. ■ Also possible to cool thick parts When heating is finished, there are two quenching methods: 1. Gas Heat treating thick parts is possible because of high heat exchange quenching and 2. Oil quenching. performance and up to 500 kPa (abs) pressurized gas circulation. ■ Minimize distortion from heat treatment The distortion from heat treatment is minimized by even heating and 1. To introduce and circulate inert gas (usually extremely pure nitrogen) cooling. for cooling after heating is finished. ■ Design prevents loss of material elements 2. Quenching in an oil tank in the vacuum. Control of the vacuum pressure prevents loss of material elements. ■ Maintenance is easy Heating chamber is easy to load and unload, and maintenance is simple. Other series Examples of heat treatment products Model ＥＶＰＦ Target Material Example application ＥＶＶＦ ＥＶＨＯ ＥＶＨＱ ＥＶＨＦ ＥＶＨＰ ＥＶＢＦ ＳＫ Carbon tool steel Clock parts, Jigs ＳＫＳ Alloy tool steel ● Die and molds Press molds and die cast molds ＳＫＤ Alloy tool steel ● ● Precision die and molds extraction Rollers for form rolling Cutting tools, Die and molds High speed Mold measuring gauge ＳＫＨ tool steel ● ● Machinery parts Quenching/ Jet engine bearings solution treatment Turbine blades Miniature bearings Hydraulic equipment parts ＳＵＳ Stainless steel ● ●
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