white fused alumina grains
Specifications
- Brand
- haixu
- Origin
- zhengzhou
- Price Term
- FOB
white fused alumina grains is a Abrasives product. Key specs — Brand: haixu; Origin: zhengzhou; Price Term: FOB.
Product Description
Fused white corundum is made from high quality alumina by melting above 2000°C in the electric arc furnace and then cooling. It is with high purity, great self-sharpening, acid and alkali resistance, high temperature and stable thermal performance. Its hardness is a little higher than brown fused alumina. It is with low toughness, great grinding ability, small heat and high efficiency. It can be made to the abrasives, suitable for sandblasting and grinding material and staining steel and other fine-grained abrasive; also be used for precision casting and high-refractory materials.
Physical and chemical analysis
Physical properties | Chemical compositions | Value of specifications (%) | |
Hexagonal | Al2O3 | ≥99.55 | |
Main crystal body | Al2O3 | ||
Color | white | Na2O | ≤0.22 |
Grain density | ≥3.9 g/cm3 | ||
Bulk density | 1.75-1.95 g/cm3 | SiO2 | ≤0.03 |
Morse hardness | ≥9 | ||
Linear expansion coefficient(1/°C) | 8.3x10-4 | Fe2O3 | ≤0.04 |
Loss on ignition (%) | ≤0.08 | ||
Performance and advantages of sandblasting
1. Not affecting the color of the processing cases;
2. Sandblasting in the non-iron process;
3. High speed processing and quality;
4. Containing a very low amount of iron oxide, suitable for non-ferrous blasting operations;
5. After acid washing steps.
