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Continuous coil-to-coil electroplating Ceramic plating, ceramic circuit board Electrochemical polishing, passivation, nickel-chromium plating, electroless nic Low-temperature black chromium hard chromium surface treatment Zinc plating products Surface treatment for auto parts Electroless nickel plating gold plating Copper, nickel and chromium plating Electrosilvering

hard chromium surface treatment

1、The product has good abrasion performance. The hard chromium additive is added, so the chromium plating hardness is 850-1,100HV, the number of cracks is more than 400, and the sliding friction coefficient is about 50% of steel and cast iron. The product owns adhesion resistance.
2、With better corrosion resistance, under the effect of slight oxidation (i.e. surface passivation), the chromium plating layer may form a very thin and transparent passivation film whose color is not changed at room temperature for a long time, to protect the chromium plating layer.

Detail


Hard chromium of measuring instruments	Partial hard chromium of auto parts

Hard chromium characteristics
1、The product has good abrasion performance. The hard chromium additive is added, so the chromium plating hardness is 850-1,100HV, the number of cracks is more than 400, and the sliding friction coefficient is about 50% of steel and cast iron. The product owns adhesion resistance.
2、With better corrosion resistance, under the effect of slight oxidation (i.e. surface passivation), the chromium plating layer may form a very thin and transparent passivation film whose color is not changed at room temperature for a long time, to protect the chromium plating layer.

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