Surface treatment process of precision mechanical parts processing
Surface treatment is an essential part of precision mechanical parts processing. It involves applying a layer of material, coating or plating to the surface of the part to improve its durability, corrosion resistance, and aesthetics.
The following are the common surface treatment processes used in precision mechanical parts processing:
1. Anodizing: This process involves immersing the part in an electrolyte solution and applying an electrical current to create a layer of oxide on the surface. Anodizing improves the part's hardness, wear resistance, and corrosion resistance.
2. Electroplating: This process involves immersing the part in a solution containing metal ions and applying an electrical current to deposit a layer of metal on the surface. Electroplating improves the part's corrosion resistance, wear resistance, and aesthetics.
3. Powder coating: This process involves applying a layer of powder to the part's surface and then baking it to create a durable, corrosion-resistant coating. Powder coating provides excellent protection against corrosion, chemicals, and abrasion.
4. Passivation: This process involves immersing the part in a solution of nitric acid to remove any surface impurities and promote the formation of a protective oxide layer. Passivation improves the part's corrosion resistance.
5. Chemical etching: This process involves removing a portion of the part's surface using chemical solutions to create a specific pattern or design. Chemical etching is commonly used for creating logos, part numbers, and other markings on a part's surface.
6. Surface grinding: This process involves grinding the part's surface to remove any imperfections or burrs, creating a smooth surface. Surface grinding improves the part's aesthetics and provides a better surface for subsequent surface treatments.
Overall, the choice of surface treatment process depends on the specific application requirements of the finished part.
