Multiple surface treatments
Surface treatment is a process by which a surface layer with different mechanical, physical and chemical properties from the substrate is artificially formed on the surface of the basic material. The purpose of surface treatment is to meet the requirements of corrosion resistance, abrasion resistance, decoration or other special functions of products. For metal castings, the most commonly used surface treatment methods are mechanical grinding, chemical treatment, surface heat treatment, spraying surface, surface treatment is to clean the surface of the workpiece, cleaning, deburring, degreasing, scaling and so on.