The surface treatment process is divided into four aspects:
1. Mechanical surface treatment: sand blasting, shot blasting, polishing, rolling, polishing, brushing, spraying, painting, oiling.
2. Chemical surface treatment: bluing and blackening, phosphating, pickling, electroless plating of various metals and alloys, TD treatment, QPQ treatment, chemical oxidation.
3. Electrochemical surface treatment: anodic oxidation, electrochemical polishing, electroplating.
4. Modern surface treatment: chemical vapor deposition CVD, physical vapor deposition PVD, ion implantation, ion plating, laser surface treatment.
