First, the type of surface treatment:
Surface treatment is a process of forming a coating on the surface of a workpiece by a certain method. The purpose of the surface treatment is to give the surface of the product an aesthetic and anti-corrosion effect. The surface treatment methods are attributed to the following methods:
1. Electroplating: The electroplated component is immersed in an aqueous solution containing a deposited metal compound, and an electric current is passed through the plating solution to cause the electroplated metal to be deposited and deposited on the component. Generally, electroplating includes galvanizing, copper, nickel, chromium, copper-nickel alloy, etc.
Sometimes boiled black (blue), phosphating, etc. are also included.
2. Hot dip galvanizing: This is accomplished by immersing the carbon steel component in a plating bath of molten zinc at a temperature of about 510 °C. The result is that the iron-zinc alloy on the surface of the steel piece gradually becomes passivated zinc on the outer surface of the product. Hot dip aluminizing is a similar process.
3. Mechanical plating: The surface of the product is impacted by the coated metal particles and the coating is cold welded to the surface of the product.