There are many electroplating materials, most of which are single metals or alloys, such as titanium palladium, zinc, cadmium, gold or brass, bronze, etc; There are also dispersion layers, such as nickel silicon carbide, nickel graphite fluoride, etc; There are also cladding layers, such as copper nickel chromium layer on steel, silver indium layer on steel, etc. In addition to iron-based cast iron, steel and stainless steel, there are also non-ferrous metals, ABS plastics, polypropylene, polysulfone and phenolic plastics as the base materials for electroplating, but the plastics must undergo special activation and sensitization treatment before electroplating.
Electroplating is a process of plating a thin layer of other metals or alloys on the surface of some metals by using the principle of electrolysis. It is a process of using electrolysis to attach a layer of metal film to the surface of metal or other material parts, so as to prevent metal oxidation (such as rust), improve wear resistance, conductivity, reflectance, corrosion resistance (copper sulfate, etc.) and enhance beauty. The outer layer of many coins is also electroplated.