Surface treatment can be divided into four aspects:

       Surface treatment can be divided into four aspects:



1. Mechanical surface treatment: sandblasting, shot blasting, polishing, rolling, polishing, brushing, spraying, painting, oiling, etc.



2. Chemical surface treatment: blue and blackening, phosphating, pickling, electroless plating of various metals and alloys, TD treatment, QPQ treatment, chemical oxidation, etc.



3. Electrochemical surface treatment: anodizing, electrochemical polishing, electroplating, etc.



4. Modern surface treatment: chemical vapor deposition CVD, physical vapor deposition PVD, ion implantation, ion plating, laser surface treatment, etc.



Surface treatment is a process method of artificially forming a surface layer with different mechanical, physical and chemical properties of the substrate on the surface of the substrate material. The purpose of surface treatment is to meet the corrosion resistance, wear resistance, decoration or other special functional requirements of the product.