PROBLEM TO BE SOLVED: To enable the formation of black coating excellent in corrosion resistance by allowing it to contain specified amounts of sexivalent chromium, chloride radicals, nitrate radicals, iron or the like.KISHIKAWA SEIJI岸川 誠次...
Black or olive drab zinc plating is used to provide corrosion protection and anti-galling properties to parts. It is achieved by applying zinc plating followed by a chromate after plating. The result is a uniform, durable coating providing corrosion resistance....
Black zinc (specially hex black chromate) is not a good corrosion resistant finish if not specified some topcoat, sealer or lacquer. My experience with acid zinc plating and ONLY hex black chromates isn't good, as I haven't seen more than 12 hours for white rust in neutral salt spray c...
It depends on how conductive is conductive -- you would need a black precious metal coating for very low contact resistance. But otherwise there are numerous options including black chrome plating, black nickel plating, zinc plating with black chromate, and zinc-iron plating with black chromate. ...
Opaque，Oliver Green"， 橄榄绿。但这个不环保的。我也没有看到过用Green Chromate来表示环保的钝化，如果要环保，一般都用，Triavalent Passivation或者Hexavalent Free。估计这个Green还是指颜色。通过在钝化剂中加颜料，能做得特别绿，装饰性的。但这种，需求的人少，估计很难找到供应商的。
Zinc w/ Black Hexavalent Chromate / 300+ Zinc w/ Olive Drab Hexavalent Chromate / 400+ Zinc w/ Clear Hexavalent Chromate & Seal / 240 Chem Processing Inc. offers precisionrackand barrel zinc plating services to Illinois, Wisconsin, Iowa, the Midwest and beyond. CPI is strategically located by...
Zinc electroplating with black colored chromate passivation. Trivalent or hexavalent chromium passivation is permitted, see Section 2.2.1 and 2.2.3. Type ZN BCR finish exhibits moderate corrosion resistance and is primarily used for appearance purposes in interior applications. ...
At Rochester Overnight Plating we provide advanced plating services, utilizing cutting edge materials and processes. We specialize in providing innovative solutions, and unparalleled customer service. Zinc & Tri-Black Chromate Conversion Coating of a Hinge Piece ...
Great Lakes Metal Finishing, Inc offers both trivalent black and hexavalent black chromate as two of our many options for zinc plating services throughout Pennsylvania, West Virginia, Ohio, and New York. GLMF’s tight tolerance metal finishing work can accommodate individual zinc or zinc nickel pl...
Preparation and Its Corrosion Resistance of Cerium Conversion Coating on Zinc Plating The possibility of cerium conversion coating has been studied as a replacement for chromate-based coating treatment on electroplated zinc on galvanized ste... Y Kobayashi,N Yamashita,Y Fujiwara,... - 《Journal of ...