Pollution Prevention Progress for 23 Washington Electroplating Facilities: an Industry Sector Report
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Troubleshooting Decorative Electroplating Installations, Part 5
Troubleshooting Decorative Electroplating Installations, Part 5: Plating Problems Caused Article By Heat & Bath Temperature Fluctuations by N.V. Mandich, CEF, AESF Fellow Technical Technical In previous parts of this series, emphasis was given The fast-machining steels must then be carburized to troubleshooting of the sequences for pre-plating or case-hardened to obtain a surface with the hardness and electroplating over metals, Parts 1 and 2;1 required to support the top chromium electroplate. the causes, symptoms and troubleshooting for Case hardening is the generic term covering several pores, pits, stains, blistering and “spotting-out” processes applicable to steel or ferrous alloys. It changes phenomena, Part 3;2 and troubleshooting plating on the surface composition of the top layer, or case, by plastic systems, Part 4.3 Here in Part 5, causes and adsorption of carbon, nitrogen or a mixture of the two. some typical examples of problems that occur in By diffusion, a concentration gradient is created. The electroplating as a result of a) thermal, mechanical heat-treatments and the composition of the steel are surface treatments, b) the metallurgy of the part to additional variables that should be addressed and taken be plated or c) effects of plating bath temperature into account in the electroplating procedure. on plating variables and quality of the deposits When discussing the effect of heat-treatment on are discussed. subsequent electroplating processes it is necessary to zero in on the type of heat-treatment involved. We Nearly every plater has at one time or another had the can defi ne the heat-treatment process as changing the experience of trying to plate parts that simply would characteristics of the parts by heating above a certain not plate. -
Theory of Operation: How Parts Cleaning Works
Theory of Operation: How Parts Cleaning Works MART defines the term to clean as to overpower the soils. The MART Parts Washer is a high-impact pressure, high-temperature, industrial water-based cleaning system that uses a combination of the following factors to achieve cleaning results: Power x Temperature x Chemical x Time = Clean The relationship of these variables can be varied in an infinite number of ways to achieve the same level of cleanliness. Your own needs determine the relative value of each variable. Keep in mind that the MART Parts Washer provides one of the highest blasting powers in the cleaning industry, allowing you to reduce the wash-cycle times for your parts to a minimum. Additionally, the high blasting power allows you to operate the washer at lower cleaning temperatures, thus saving energy, and using less chemical than spray washers The exact combination of the factors must be determined for your application, based on the types of soils to be removed, the degree of cleanliness required, the cycle time required, the types of parts to be cleaned, and so on. How the Parts Washer Works The parts washer operates on a timed cycle. The operator places the parts to be cleaned in the washer on the turntable, closes and latches the door, and then starts the timed cleaning cycle. During the cleaning cycle, a high-temperature, high-pressure, water-and-detergent cleaning solution blasts soils from the parts. After the cycle has stopped and the steam has exhausted, the operator removes the cleaned parts. The parts washer utilizes closed loop, waste minimization technology, continuously reusing its cleaning solution and effectively reducing pollution potential. -
Electroforming of Copper Canisters
Mineralogical Magazine, November 2015, Vol. 79(6), pp. 1521–1528 OPEN ACCESS Manufacturing technology for implementing geological disposal: electroforming of copper canisters 1,2,3,* 1,3 1,4 2 2 T. H ERNANDEZ-SELVA ,D.L.ENGELBERG ,F.SCENINI ,D.FOX AND A. MCCLUSKY 1 Materials Performance Centre, School of Materials, The University of Manchester, Manchester M13 9PL, UK 2 BEP Surface Technologies Ltd, Eton Hill Road, Radcliffe, Manchester M26 2XT, UK 3 Research Centre for Radwaste and Decommissioning, The University of Manchester, Manchester M13 9PL, UK 4 Nuclear Advanced Manufacturing Centre, The University of Manchester, Manchester M13 9PL, UK ABSTRACT The existing capability and current development needs for implementing electroforming as a viable manufacturing process to produce copper cylinders with dimensions comparable to the Swedish KBS-3 design are discussed. Large freestanding copper cylinders can be produced readily, but there is a need to address challenges associated with controlling the electro-deposition process to conform to compositional and mechanical requirements of the copper layers produced. The methodology to optimize the manufacturing process, based on a study of key parameters, such as the effects of electrolyte additives on grain size and the chemical composition of electroformed layers, is described here. Possible ways to introduce a robust manufacturing route are also presented. K EYWORDS: nuclear wastes, deep geological repository, KBS-3 copper canister, electroforming, electroplating. Introduction Institute, 2006; ARAO, 2009), whereas the Nuclear Waste Management Organization (NWMO) of THE concept for the UK’s inventory of high-level Canada is focusing its research on thick-walled radioactive waste (HLW) is to implement deep steel containers coated with 3 mm of electroplated geological disposal (Department of Energy & copper (Keech et al., 2014). -
The Biomatic® Parts Cleaning System Is…
BIOMATIC® The Environmentally Friendly Bioremediation Parts Washer 1 The Biomatic® Parts Cleaning System Is… • A Bioremediation System. The Graymills Biomatic Parts Cleaning System uses the natural technology of microbial bioremediation to reduce oils, greases and other hydrocarbons introduced into the cleaning system to water and carbon dioxide (CO2). No oil and hydrocarbon buildup means the unit continues to clean parts indefinitely (we recommend cleaning the tank once a year, but the fluid can be put back in for continued use if desired.) • A Waste Minimization System. Talking to your customers about “waste minimization” will get their attention. With the Graymills Biomatic Parts Cleaning System, users will go from monthly dumping of fluid and unit cleanup…to once a year. That’s a “waste minimization” sales story few customers can resist. • A Tough Cleaner. Aqueous based Super Biotene® is pH neutral with a mild, pleasant odor. A mixture of emulsifiers and surfactants, they contain no VOCs, so they’re EPA and air quality friendly! Super Biotene cleans grease and grime off even the dirtiest parts, then the microbes go to work, reducing the hydrocarbon contaminants (oils, greases) to water and CO2. • A Good Investment. Recycling costs are slashed…parts cleaner waste is minimized…the dirtiest parts come clean…and the system is operator friendly. 2 How The Biomatic® Parts Cleaning System Works It is important to understand that the Biomatic® Parts Cleaning System is more than individual products - it is a total cleaning environment. The Biomatic Parts Cleaning System relies on the perfect balance between the Super Biotene® cleaning solution and the microbes introduced into the system. -
Enhanced Fracture Strength in the Working Layer of Rolls Manufactured in Ni-Hard Cast Iron Alloyed with Mo, Nb and Mg
metals Article Enhanced Fracture Strength in the Working Layer of Rolls Manufactured in Ni-Hard Cast Iron Alloyed with Mo, Nb and Mg Alberto Cofiño-Villar 1, Jose Florentino Alvarez-Antolin 1,* and Juan Asensio-Lozano 2 1 Departamento de Ciencia de los Materiales e Ingeniería Metalúrgica, Edificio departamental Este, Universidad de Oviedo C/ Wifredo Ricart s/n-, 33204 Gijón (Asturias), Spain; [email protected] 2 Departamento de Ciencia de los Materiales e Ingeniería Metalúrgica, Escuela de Ingeniería de Minas, Energía y Materiales, Universidad de Oviedo, C/ Independencia 13, 33004 Oviedo (Asturias), Spain; [email protected] * Correspondence: alvarezfl[email protected]; Tel.: +34-985-181-949 Received: 28 August 2018; Accepted: 13 September 2018; Published: 15 September 2018 Abstract: One of the main in-service failure mechanisms of the work-rolls used in hot strip mill finishing stands is surface spalling. The indefinite chill double-poured rolls usually comprise of a peripheral working layer made of crushed Ni-hard cast iron and a grey cast iron core, mostly pearlitic matrix with spheroidal graphite. To enhance its wear resistance, the working layer can be alloyed with Mo and Nb. The possible cracking and spalling of the surfaces of these work-rolls is strongly influenced by the presence of carbides and the continuity of their network. The flexural and impact toughness tests are reliable testing methods to assess these properties. The aim of this paper is to identify those manufacturing factors that have a significant effect on the flexural strength and toughness of this material, correlating the results with the volume fraction of precipitated carbides. -
Metals in the Bible: Silver (Part 1)
The Testimony, August 2004 329 times of restitution of all things” (Acts 3:21, AV). the last verse of his song does look forward to In contrast, the song of Moses in chapter 32 pre- the time of blessing when the Gentiles will re- dicts future rebellion and consequent punish- joice with God’s people and atonement will have ment that would occur before the final glory been provided for both land and people (v. 43). would be attained by the nation. Nevertheless, (To be continued) New feature Metals in the Bible 3. Silver (Part 1) Peter Hemingray In 1996 and 1997 The Testimony published two two-part articles under the title, “Metals in the Bible”, in which we looked at iron and copper.1 We considered the ancient technology of iron, and how this knowledge helps illuminate the Biblical references to it. In particular, we saw how the introduction of iron during the period of the conquest affected the Israelites, who had to overcome superior technology through the power of God. For copper (or brass, as the AV terms it) the ancient metalworking methods were illuminated with illustrations from Timnah in Palestine, and we argued for the symbology of copper in the Bible being primarily that of strength, and only rarely that of the strength of sin. The intention was to complete these studies on metals of the Bible by considering silver, then gold. This we have now done in two further two-part articles to be published in this and the coming months, God willing. E WILL CONTINUE the theme of il- • examine the references to refining and cruci- lustrating the Biblical passages about bles in the light of our knowledge of ancient Wmetals with descriptions of the ancient metalworking practices metalworking techniques, as we consider silver, • look at the few references to lead in the Bible, the next metal up in Nebuchadnezzar’s image often associated with silver for reasons we after the iron and brass already considered. -
Line Card Listing by Vendor
KAMPI COMPONENTS - Line Card by Manufacturer / OEM 20-Mar-18 Cage Code Manufacturer / OEM Product Line(s) 08060 A & J Manufacturing Co. Equipment racks and enclosures 6Z800 A & M Aerospace Inc. Aerospace components manufacture 00144 A.D.C. Products Division Electrical cords and related products 46FH0 A-1 Fire Equipment Fire suppression systems 15755 Abbott Transistors Power supplies and inverters 3M927 Accurate Rubber Products, Inc. Grommets, bumpers, suction cups, o-rings, seals 51506 Accurate Screw Machine Company Electronic hardware & fasteners 0TYP8 Accushim Inc. Stainless steel shims and shim kits 0LLR0 Accu-Wire & Cable Wire and cable products 83908 Ace Products Company Windshield wipers, scrapper rings 0HCJ7 Ace Rubber Products Molded rubber products 47181 Aces Systems-Dynamic Instruments Vibration analysis instrumentation and products 18560 ACR Electronics Inc. Electronic VHF/UHF radio sets, strobe light beacons 57598 ACS Industries, Inc. Engineered knitted wire mesh products 66173 Addco Mfg. Co. Large mobile and fixed LED displays 03RL1 Advanced Cable Ties, Inc. Cable ties and wiring products 60642 Advanced Conversion Technology Military power supplies 1ED54 Advanced Seal Technology Mechanical seals; labyrinth, split design, pressure, vacuum and temperature 09332 Aerofast Inc. Quick release pins and attachments 82366 Aero-Motive Mfg. Co. Electric cord and cable reels, hose reels, winding reels 98810 Aerosonic Corp. Aeronautical flight instruments, watches, clocks and aircraft instruments 0E0Z8 Aerospace Mfg. Inc. Fasteners for aerospace and military applications 17140 Aerospace Products, Inc. Electronic and jet engine parts, aerospace and aircraft fasteners 4F124 Aircraft Fasteners Inc. Self-locking nuts, inserts and related fastener products for aerospace applications 0CD56 Aircraft Hinge Inc. Aviation hinges and hinge assemblies 32970 Aircraft Parts Co. -
Traditional Aqueous Parts-Cleaning Operations Work Great on Day One, but Rapidly Become Contaminated
➤ B Y S tep H en D . te M ple , ran S O H O FF Cleaning you can count on Traditional aqueous parts-cleaning operations work great on day one, but rapidly become contaminated. Adding an ultrafiltration process to a parts cleaning system can dramatically extend and improve its performance. Traditional aqueous parts-cleaning operations can be inconsistent and costly. Machine shops and contract manufacturers dealing with a range of contaminants and heavy contaminant loads are finding they need something more. In many cases, adding an ultrafil- tration (UF) system to an existing parts cleaning system can provide cleaner parts as well as dramatically lower maintenance and operating costs. This is not to say that traditional sys- tems cannot be effective in certain situ- ations. For example, a shop can realize good bath life and part cleanliness when primarily cleaning with non- emulsified oils and when the system’s cleaning chemistry can effectively split the oil to the surface of the parts bath. This splitting allows removal via con- All images: Ransohoff ventional oil skimming or decanting Deerfield Manufacturing installed a 360 gal./day UF system that effectively turns methods. (A typical industrial parts over its wash tank every fourth day. washer includes a wash stage where most contaminants are removed, fol- rity and achieve optimal cleaning. The This is an inefficient and inconsistent lowed by rinsing and drying stages. result is that metalworking operations process, particularly for operations that Newer systems may include only a start out on day one with fresh water must meet stringent parts cleanliness single-stage wash with dry off.) and a new chemical charge to create specifications, such as in Six Sigma However, a more likely scenario for the cleaning solution. -
ZEP LUBEZE DRILL CHILL™ Cutting Oil
PROD. #1378 205 PRODUCT SPECIFICATION REPORT ZEP LUBEZE DRILL CHILL™ Cutting Oil DESCRIPTION A fatty, mineral oil based, ready to use metalworking fluid, fortified with extremely pressure additives. FEATURES BENEFITS • Versatile • Can be used on carbon, allot, and stainless steel as well as softer metals such as aluminum. • Anti weld • Helps prevent chips from welding to tool surface • Prolongs tool life • Reduces friction, increases cutting speeds • Inhibits rust • Leaves behind a light oil film which provides temporary protection to the work piece and tool surface • Conserves energy • Lowers resistance to cutting resulting in lower torque and power requirements APPLICATIONS An excellent lubricating fluid for metalworking applications, particularly in extreme pressure situations such as drilling and threading. Used in any metalworking and fabricating facility. COMPANION PRODUCTS Zep Gator Tails, Zep degreasers, Zep Cold Galvanized, Zep Super Penetrant, Zep Ironclad, Zep PLS, Zep Viton Gloves SPECIFICATIONS Physical form . .Thin, amber oil Boiling point . .545 - 884°F Flash point (TCC) . .300°F Shelf life . .1 year minimum Odor . .solvent odor DOT Shipping label . .LUBRICANTS, METAL CUTTING, pH . .N/A . .LIQUID, NOI Specific gravity . .0.88 PACKAGING 5 gallon pail 55 gallon drum ZEP MANUFACTURING COMPANY 1-877-I BUY ZEP Your One Source for Cleaning and Maintenance Products (1-877-428-9937) PROD. #1378 205 PRODUCT LABEL ZEP LUBEZE DRILL CHILL™ Cutting Oil ™ PROD.# 1378 LUBEZE DRILL CHILL 501B CUTTING OIL •Drilling •Cutting •Boring •Thread Cutting and Machining Operations A premium cutting oil fortified with sulfur and chlorine compounds for FIRST AID: effectiveness in extreme pressure applications. Provides excellent lubricity. EYES: Immediately flush eyes with plenty of water for at least 15 minutes, occasionally Reduces energy requirements by lowering resistance to cutting tool. -
Aero-Green Parts Washer Degreaser -4160-4150
Aero-Green Parts Washer Degreaser -4160-4150 Aero-Green 4150-4160 Parts Washer Concentrated Degreaser for use in Immersion Degreasers: Ultrasonic Degreaser, Spray Cabinet Washer, Adjulift Parts Washer, Glove Box Washers and Hot & Cold Standard parts washers. Cleans Virtually All Metals Including Steels, Aluminum & Titanium SPRAY CABINET WASHERS Spray Cabinet Washers are designed to clean large parts that are placed directly on a retractable turntable or batches of small parts loaded in baskets. This heavy-duty industrial parts washer combines pressure, heat and aqueous cleaning solution such as Aero-Green 4150-4160 to clean and degrease parts to spec within minutes. Many machines are designed with added features such as low-maintenance pumps, digital temperature controllers, and cycle timers, low water shut off, automatic fill, proportioners, oils skimmers and fresh water rinses. Each recirculate stage has its dedicated tank, heating system, circulation pump, cycle controls and spray manifolds in the main spray cabinet. Typhoon® HD is an ideal aqueous parts washer for in-process and final cleaning in maintenance, manufacturing and remanufacturing applications. Spray Cabinet Washers deliver deep-down auto parts cleaning designed for durability and precision under the most demanding conditions. The powerful force of the jets and the Aero-Green 4150- 4160 combine to remove grease, oil, carbon and other grime in just minutes. Spray Cabinet Washer technology, is effectively used in industries ranging from remanufactured railroad drivetrain parts to in-process cleaning for jet engine components Spray Cabinet Washers are designed to clean, degrease bulk loads of small or large parts in preparation for surface treatment, packaging and distribution. -
DROSS in DUCTILE IRON by Hans Roedter, Sorelmetal Technical Services
98 DROSS IN DUCTILE IRON by Hans Roedter, Sorelmetal Technical Services WHAT IS “DROSS ”? magnesium with other elements. Dross also Dross is a reaction product which is formed from occurs in the form of long stringers instead of Mg treatment and during subsequent reoxidation concentrated “slag like” areas. When it occurs in of Mg rejected from the molten metal before it this string like form it acts like cracks or flake solidifies. It is therefore just another word for a graphite in the structure and so fatigue strength specific type of slag (reaction product). and impact strength of the material are lowered considerably. The reaction binds magnesium with sulphur, oxygen and silicon and forms continuously. This “dross” is light weight and so it will generally be found in the upper surfaces and under cores, but it can be entrained throughout the metal as well, especially with colder pouring tempera - tures. It is very difficult to completely avoid the reaction of magnesium with these other elements, since we need magnesium to form nodules. We are always confronted with the problem of dross in the production of Ductile Iron. WHAT IS PROMOTING “DROSS ” AND WHAT CAN BE DONE TO KEEP THE “DROSS ” OUT OF THE CASTING ? Since “dross” is always connected with magnesium, it is necessary to keep the magnesium level as low as possible. Good inoculation practice with some late inoculation in conjunction with sufficient magnesium will When looking at “dross” in the microscope you produce nice round small nodules. See will almost always find flake graphite in Suggestion Sheet 76. -
Lecture 8: Casting Technology
Lecture 8: Casting Technology MT321: Principles of Materials Processing Lecture 8:Casting Technology 1 Design of Gating Systems Functions of a gating system: To deliver liquid metal to mould cavity within a short time. To minimise turbulent flow. To keep dross and/or inclusion particles from entering mould cavity. MT321: Principles of Materials Processing Lecture 8:Casting Technology 2 MT321: Principles of Materials Processing Lecture 8:Casting Technology 3 How to deliver liquid metal fast? By using a sufficient large cross sectional area; By using multiple runners. How to minimise turbulent flow? By using tapered sprue and runners. By bottom filling of the liquid into the mould cavity. By regulating the change of cross sectional area of the channels according to fluid dynamics principles. MT321: Principles of Materials Processing Lecture 8:Casting Technology 4 How to keep dross and inclusion particles from entering mould cavity? By using dross traps. By using filters. MT321: Principles of Materials Processing Lecture 8:Casting Technology 5 Various types of ceramic filters that may be inserted into the gating systems of metal castings MT321: Principles of Materials Processing Lecture 8:Casting Technology 6 MT321: Principles of Materials Processing Lecture 8:Casting Technology 7 Solidification Shrinkage The liquid of most metals and alloys shrinks during solidification. Solidification shrinkage (percent) of some common engineering metals and alloys MT321: Principles of Materials Processing Lecture 8:Casting Technology 8 Two considerations must be made in designing a casting mould, due to the solidification shrinkage: A riser, which is a reservoir of liquid, is needed to compensate for the shrinkage of the whole casting.