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The electroplating process is a method of plating a conductor with a layer of metal using the principle of electrolysis. Electroplating refers to a surface processing method in which a premetallized salt solution is used, and a substrate metal is used as a cathode to deposit a cation of preplating metal on a surface of a substrate metal by electrolysis to form a plating layer. .
The coating performance is different from that of the base metal and has new features. According to the function of the coating, it can be divided into protective coating, decorative coating and other functional coatings.
During electroplating, a plated metal or other insoluble material is used as an anode, and a workpiece to be plated is used as a cathode. The cation of the plated metal is reduced on the surface of the workpiece to be plated to form a plating layer. Can enhance the corrosion resistance of metal (plated metal is mostly made of corrosion-resistant metal), increase hardness, prevent abrasion, improve electrical conductivity, smoothness, heat resistance and surface appearance.