Stainless steel contains a large amount of chromium and nickel, there is very thin thickness of the passive film composed of oxide on the surface.So it can not get Good plating adhesion in process of Degreasing pickling (activation) – electroplating.In the process of Electroplating stainless steel, it is necessary to completely remove the passivation film, and in order to prevent the regeneration of the passive film, the activation treatment must be carried out.
Nickel plating bath with bright nickel plating bath and amino acid bath. According to use can be dull, nickel plating bath and gloss gloss and semi gloss nickel plating, copper plating bath is no gloss, gloss in copper sulfate bath and coke copper lead plating bath. These nickel and copper plating on the surface of nickel plating.
Precious metals as the representative of the gold plating due to the soft quality, in order to improve its hardness and wear resistance are used with other metals such as nickel, silver, cobalt and other alloy plating bath.
Types of Electroplating stainless steel
1)Nickel plated stainless steel
Shiny nickel material because of its good electrical conductivity, small contact resistance, so for a button type and coin type cell surface, in addition, the matte nickel material also has the same characteristics in electrical contact materials such as the use of battery. On the other hand, the solderability of nickel plating is good, but it is easy to be passivated in the air.
2)Copper plated stainless steel
The copper plated luster decorative and stainless steel strength, corrosion resistance and corrosion resistance, building materials on the roof material, wall material, such as the use of rain trough.
3)Gold plated stainless steel
Gold decorative plating and electroplating industry, the gold surface in a long time the state does not change, stable contact resistance, high reliability, and excellent solderability, so it is widely used in all kinds of electric connectors, terminal etc..
Electroplating stainless steel technology has made a leap forward progress, in addition to the metal described in this article, according to the use of chromium, zinc, tin and other metals, plating parts of the material to a wide range of steel coil shape for electroplating. In the future, we hope to have more extensive use of stainless steel plating products in various sectors.