Color stainless steel plate The process of plating a thin layer of other metals or alloys on some metal surfaces using electrolysis principles. Electroplating, the coated metal as an anode, oxidized into cationic into the electroplating solution, the metal products to be plated as cathode, coated metal cations on the metal surface is reduced to form a coating. In order to eliminate the interference of other cations, and make the coating uniform and firm, the solution containing the coated metal cations should be used as the electroplating solution to keep the concentration of the coated metal cations constant. The purpose of electroplating is to apply a metal coating (deposit) on the substrate to alter the surface properties or dimensions of the substrate. Electroplating can enhance the corrosion resistance of metals (coated metals are mostly corrosion-resistant metals), increase hardness, prevent wear, improve electrical conductivity, lubrication, heat resistance, and surface aesthetics.