Purpose of sandblasting:

Sandblasting is a processing method that uses a mechanical method or the power of compressed air to make the sand particles form a high-speed sand flow to the surface of the metal workpiece, and uses a strong impact force to clean and modify the workpiece.
1. Remove rust, carbon accumulation, welding slag, old paint layer or other dried oil substances on the surface of the workpiece, remove burrs or directional wear marks on the workpiece, and sand and oxide on the surface of the workpiece after castings, forgings or heat treatment.

2. It is used to treat some workpiece surfaces that are not suitable for pre-treatment by chemical methods, such as the oxide film on the surface of high-strength steel that is very sensitive to hydrogen brittleness, and the magnesium alloy parts that are easily corroded in aqueous solution.

3, improve the workpiece surface roughness value, for painting or other coating attachment to prepare.

4. Wet sandblasting of cutting tools can improve their service life.

5, fine sand is also used for decorative matting treatment or hemp treatment on the surface of the workpiece, such as spraying flowers on the surface of glass or ceramic.

6, clean the welding seam of the welding parts to ensure the quality of the assembly.

7, sandblasting can be used for thermal spraying or coating before rust removal, sandblasting workpiece can be directly into the chemical plating tank or phosphating tank and other conversion film tank.