White alumina oxide is made from industrial alumina powder, arc smelted at a high temperature of more than 2000 degrees, and then cooled. After crushing and forming, magnetic separation and iron removal, and screening into various sizes. It is suitable for manufacture grinding, polishing, sandblasting, precision casting (corundum for precision casting) of ceramic and resin-bonded abrasive tools, and can also be used to manufacture advanced refractory materials.
White alumina oxide abrasive is suitable for surface beautification of various high-end products, crafts or hardware. After sandblasting, the surface is white without any impurities, eliminating the trouble of cleaning.
Fine white corundum can be used as the head of polishing and grinding. It can also be used as various product additives. Solid and coated abrasives, wet or dry or blasted.
It is suitable for processing hardened steel, alloy steel, high-speed steel, high-carbon steel and other materials with hard hardness and high tensile strength. It can also be used as catalyst, insulator and precision casting sand.
| Typical Chemical composition | |
| AL2O3 | 99.3%min |
| SiO2 | 0.06% |
| Na2O | 0.3%max |
| Fe2O3 | 0.05%max |
| CaO | 0.04%max |
| MgO | 0.01%max |
| K2O | 0.02#max |
| Typical physical properties | |
| Hardness: | Mohs:9.0 |
| Maximum service temperature: | 1900 ℃ |
| Melting Point: | 2250 ℃ |
| Specific Gravity: | 3.95g/cm3 |
| Volume density | 3.6g/cm3 |
| Bulk density(LPD): | 1.75-1.95 g/cm3 |
| Color: | White |
| Particle shape: | Angular |
| Available size: | |
| FEPA | F230 F240 F280 F320 F360 F400 F500 F600 F800 F1000 F1200 F1500 |
| JIS | 240# 280# 320# 360# 400# 500# 600# 700# 800# 1000# 1200# 1500# 2000# 2500# 3000# 4000# 6000# 8000# 10000# |
Product advantages：
1. Does not affect the color of the workpiece;
2. It can be used for sandblasting in the process where iron powder residue is strictly prohibited;
3. Micro powder grade is very suitable for wet sandblasting and polishing operations;
4. Fast processing speed and high quality;
5. The amount of iron oxide contained is extremely low, and it is suitable for sandblasting operations where iron residues are strictly prohibited
