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Hard chrome plating. Hard chrome, also known as industrial chrome or engineered chrome, is used to reduce friction, improve durability through abrasion tolerance and wear resistance in general, minimize galling or seizing of parts, expand chemical inertness to include a broader set of conditions (such as oxidation resistance), and bulking ...
The 46,000-square-foot (4,300 m 2) facility houses a chrome plating line and four injection molding presses ranging from 165 to 2,200 tons to create parts for coating and testing in the center’s on-site laboratories. The Advanced Development Center is also equipped to produce custom, limited-run parts for concept vehicles. [2] [3]
The protective effect of chromate coatings on zinc is indicated by color, progressing from clear/blue to yellow, gold, olive drab and black. Darker coatings generally provide more corrosion resistance. [11] The coating color can also be changed with dyes, so color is not a complete indicator of the process used.
Thicker deposits, up to 1000 μm, are called hard chrome and are used in industrial equipment to reduce friction and wear. The traditional solution used for industrial hard chrome plating is made up of about 250 g/L of CrO 3 and about 2.5 g/L of SO 4 −. In solution, the chrome exists as chromic acid, known as hexavalent chromium. A high ...
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Black oxide or blackening is a conversion coating for ferrous materials, stainless steel, copper and copper based alloys, zinc, powdered metals, and silver solder. [1] It is used to add mild corrosion resistance, for appearance, and to minimize light reflection. [ 2 ]
The plating industry received a big boost with the advent of the development of electric generators in the late 19th century. With the higher currents available, metal machine components, hardware, and automotive parts requiring corrosion protection and enhanced wear properties, along with better appearance, could be processed in bulk.
Electroless nickel-phosphorus plating, also referred to as E-nickel, is a chemical process that deposits an even layer of nickel-phosphorus alloy on the surface of a solid substrate, like metal or plastic.