Metal surface treatment

Metal surface treatment including metal materials and metal surface treatment technology of heat treatment and surface heat treatment is not a type of ci. Generally call metal surface protection and modified metal surface treatment, the change of metal material surface structure and mechanics performance index called the metal surface heat treatment. The content of the surface protection: electroplating, painting, chemical treatment layer; Electroplating including, Galvanized iron, copper, chromium, lead, silver, nickel, tin, cadmium, etc. ) ; The coating including, Paint coating, electrostatic powder spraying, coating process) ; Chemical treatment including, Black finish, phosphating) 。 Is the surface modification of metal on the other hand, also known as surface optimization, is have the aid of new technology such as ion beam, laser, plasma, change the material composition, structure and properties of surface and near surface, to obtain using traditional metallurgy and unable to get new surface treatment technology of thin layer materials, or make traditional material has better performance. The surface modification of modern advanced technology mainly include physical vapor deposition ( PVD) , chemical vapor deposition ( CVD) And plasma chemical vapor deposition ( PCVD) , ion implantation and ion beam deposition. Step is really too much, as for electroplating plating and barrel plating, paint coating classification more, have a brush, dip coating, painting, electrophoresis, electrostatic spraying, etc. , different requirements, the process method difference is big, I haven't finish summary, all is the actual operation process, also clear than books. Metal surface treatment technology which mechanical polishing, chemical polishing, phosphating coating, spray coating, electroplating, electrophoresis, black oxide, coloring dyeing, anodic oxidation. Metal surface treatment process of steel surface treatment was widespread. Some in order to increase the surface hardness, some for anti-corrosion, have a plenty of in order to beautiful. Always speak up with surface heat treatment, such as cyanide hardening, carburizing process, blue; Polishing; Coating; Electroplating; And in some cases can use cold work hardening.