The main effects of blackening treatment on China Stamping Parts are as follows:
Improving rust prevention ability: Blackening treatment can form a layer of ferric oxide (black rust) protective film on the surface of China Stamping Parts. This layer of film is strong and stable, which can to some extent inhibit the formation of red rust on the surface of steel (i.e. rust that causes corrosion of steel). At the same time, this layer of film has porous properties and can be soaked in anti rust oil to prevent water from entering and further improve the anti rust ability.
Improving appearance: Blackening treatment can achieve a black like appearance, giving China Stamping Parts a black appearance. There is no change in surface roughness before and after treatment. Parts with gloss before treatment will have a gloss similar to black paint, while matte parts will have a matte black surface. This appearance may meet the design requirements of certain specific applications or products.
Low price: Due to the low cost of the treatment solution and the absence of electrodes or fixtures, blackening treatment is cheaper than other surface treatments such as coating and coating. In addition, if a large number of components are placed in the net basket for one-time processing, the processing unit price will be lower.
Not easy to peel off: Unlike surface treatment processes such as coating and painting, blackening treatment triggers a chemical reaction to form a layer of material with strong adhesion to the substrate on the surface of China Stamping Parts (i.e., a protective film of ferric oxide). This substance is difficult to peel off, ensuring the long-term stability of stamped parts.
Blackening treatment of China Stamping Parts can enhance rust resistance, improve appearance, reduce costs, and ensure that they are not easily peeled off. These advantages make blackening treatment have certain application value in the surface treatment of stamped parts in China.