Why does garnet have high surface treatment quality in the sandblasting process?
In the process of sandblasting, garnet sand can penetrate deep into the caves and pits on the surface and reach the bare metal surface. Therefore, it can completely remove all rust, water-soluble salts and other pollutants. The treated metal surface It is very clean, no embedded material, and the quality can easily reach the SA3 level of the SIS standard. The unit area has a uniform peak of 50-75 microns, which can easily achieve a smooth surface profile structure. Relatively speaking, because the rough and sharp edges and corners of slag (such as copper slag, nickel slag, etc.) are easily left on the surface of steel after spraying and grinding, forming embedded sand, there are about 500 grains per square meter, which leads to the initial The coating fails and the coating effect is poor.