Hard chrome plating-Dalian HanPuJiangXin Precision Machinery Co.

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Hard chrome plating

Release time：2020-04-10

Hard chromium plating is a traditional surface plating technique that has been used for more than 70 years. The chromium plating layer has high hardness, wear resistance, corrosion resistance and can keep the surface bright for a long time. For a long time, in addition to the decorative coating, chromium coating is also widely used as a mechanical parts of the wear and corrosion resistant coating. Hard chromium plating technology is often used to repair damaged parts.

However, the hard chromium plating process will cause serious environmental problems. The chromic acid solution used in the chromium plating process will produce chromium-containing acid mist and waste water. Due to the existence of micro-cracks in the chrome-plating layer, it is inevitable to produce penetrative cracks, which lead to the corrosion of the corrosion medium from the surface to the interface and corrosion of the substrate, resulting in the appearance of rust and even peeling of the coating surface; Plating process deposition speed is slow, plating 0.2~0.3mm thick coating often need 2~3 shifts of time, is not conducive to the application of thick coating.

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Hard chrome plating

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