Scope of application of white corundum Sandblasting/polishing/grinding white corundum is suitable for surface beautification of various products, crafts or hardware products. After sandblasting, the surface is clean of white impurities, eliminating the trouble of cleaning. Fine white corundum can be used for polishing and grinding. It can also be used as a variety of product additives.
Sandblasting function:
1. Surface processing: metal oxide layer, non-metal surface rust removal, such as gravity die-casting mold, rubber mold oxide or release agent removal, ceramic surface black spots, uranium color removal.
2. Beautification processing: all kinds of gold, K gold jewelry matte or matte treatment, crystal, glass, acrylic and other non-metallic matte processing.
3. Etching: jade, crystal, antiques, marble tombstones, ceramics, wood, bamboo etc. etc.
4. Pre-processing: PU, rubber, rubber roller (ROLLER), electroplating, metal spray welding, titanium plating and other pre-treatments to increase surface adhesion.
5. Burr processing: removal of burrs from bakelite, plastic, zinc, aluminum die-casting products, electronic parts, magnetic cores, etc.
6. Stress relief processing: stress relief processing for aerospace, national defense, industrial parts, rust removal, paint removal, matting, and renovation.
7. Electronic parts processing: fogging and etching of silicon chips, removal of impurities on the back of wafers, removal of printed characters on the surface of finished products, and cleaning of ceramic electric heating.
8. Mold processing: sandblasting of general mold surface, matte treatment after mold bite, glass mold, tire mold, shoe mold, electroplating mold.
9. Processing of large workpieces: rust removal, paint removal, maintenance of large workpieces such as oil tanks, ship hulls, containers, automobile industry, etc., and automatic matte treatment of large flat glass.
10. Glass processing: sandblasting of various craft glass
Physical indicators of white corundum:
| Moh’s hardness | Bulk density | proportion | Bulk density | melting point | Operating temperature |
| 9.0 | 1.75-1.95g/cm3 | 3.95g/cm3 | 3.6g/cm3 | 2250°C | 1900°C |
Chemical properties of white corundum:
| Al2O3 | Fe2O3 | Na2O | SiO2 | CaO | K2O |
| ≥99.5% | ≤0.08% | ≤0.30% | ≤0.10% | ≤0.03% | ≤0.03% |