Copper coating properties and USES:

Copper plating is a beautiful rose, nature soft, full of ductility, easy to polish, and has good thermal conductivity and electrical conductivity. But it is easy to be oxidized in the air, so as to rapidly lose luster, and therefore not suitable for decorative coating as protective layer "table".

Multi-layer plating, when the copper plating is mainly used in iron and steel "bottom" layer, also often used as a coating of tin, gold plating and silver plating "bottom" layer, its role is to improve the matrix metal and surface, or (or intermediate) coating binding force, as well as to coating the surface of the deposit. When copper plating without hole, can improve the corrosion resistance of surface coating, such as in the protective, decorative multi-layer plating act the role ofing use thick copper thin nickel plated act the role of the advantage lies in the process, and can save valuable metal nickel.

Nickel coating properties and USES:

Nickel has a strong ability of passivation, surface quickly generate a very thin layer of passivation film, resistance to atmospheric and some acid corrosion, so the nickel coating on the stability is very high in the air. In simple salt electrolytic nickel, crystallization extremely tiny coating is available, and it has excellent polishing performance. The polishing of nickel coating has a mirror shine, at the same time in the atmosphere can maintain its gloss for a long time. In addition, nickel coating has high hardness and wear resistance. According to the nature of the nickel plating, it is mainly used as protective, decorative coating, middle layer and bottom layer, such as nickel, chromium plating, nickel, copper, nickel, chromium plating, copper, nickel, chrome plating and copper, nickel plating, etc.

Due to the porosity of nickel plating is higher, only when the thickness of the coating for more than 25 microns is without hole, so generally don't have to nickel plating as a protective coating.

Nickel plating production is very big, nickel plating of nickel content accounts for about 10% of the world's total nickel production.