Welcome to HuiZhou Precise metal Products Co.,Ltd. Official Website！

The surface treatment of stamping parts refers to the process of forming a covering layer on the surface of the workpiece by a certain method. The main purpose is to make the surface of the workpiece beautiful and anti-corrosive. The surface treatment methods are as follows.

Electroplating: Immerse the electroplated parts in an aqueous solution containing the metal compound to be deposited, and pass current through the plating solution to precipitate and deposit the electroplated metal on the parts. General electroplating includes zinc, copper, nickel, chromium, copper-nickel alloy and so on.

Oxidation treatment: can be divided into chemical oxidation and anodic oxidation.

Passivation treatment: pure iron and pure aluminum react in concentrated sulfuric acid or concentrated nitric acid, and the atoms on the surface react with the acid to produce a dense oxide film to prevent the internal substances from continuing to react with the concentrated acid to achieve a protective effect.

Electrophoresis: Paint is coated on the surface of the material under the action of external electric current. It is characterized by rich colors, but poor adhesion, and it is difficult to control the color uniformly.

Mechanical plating: The particles of the coated metal are used to impact the surface of the product, and the coating is cold welded to the surface of the precision stamping part.