yixing haiyu refractory co.,ltd
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Grinding white corundum micropowder rust removal sand high packing density glass blasting
Product name: grained sand of white fused alumina
specification: 60#
Introduction of white corundum
White corundum is a kind of white artificial corundum. Like natural corundum gems, it has the characteristics of high hardness, high temperature resistance, stable chemical properties and purity. The Mohs hardness of white corundum is 9, second only to diamond, the highest use temperature is close to 2000 °C, and the Al2O3 content is more than 99 %. These excellent material properties make white corundum more and more widely used in today 's industrial production.
MAIN APPLICATIONS
-Ceramic products
-Surface treatment of glass and non-metallic materials
-Semi-conductor industry
-Hard alloy and ultra-hard abrasive tool industry
-Precision casting
-Abrasive tool processing industry and addition of abrasion-resistant materials
-FRP grid production, platinum melting crucible production, etc.
-Ceramic filter plate production
AVERAGE CHEMICAL COMPOSITION(TYPICAL)
| Al2O3 | Fe2O3 | Na2O | MgO | K2O | CaO | SiO2 |
| 99.50% | ≤0.05% | ≤0.26% | ≤0.01% | ≤0.02% | ≤0.04% | ≤0.1% |
PHYSICAL PROPERTIES(TYPICAL)
| Mohs hardness | Proportion | Banked density | PH value | Refractoriness |
| 9.0 | ≥3.90g/cm3 | 1.53-1.99g/cm3 | 7.0 | 2100℃ |
Particle size comparison sheet of white fused alumina
| grained sand of white fused alumina | |||
| Particle size number | (μm) Particle diameter range(μm) | Particle size number | (μm) Particle diameter range(μm) |
| 10# | 2000 | 60# | 300-250 |
| 12# | 2000-1700 | 70# | 250-212 |
| 20# | 1400-1180 | 80# | 212-180 |
| 22# | 1180-1000 | 90# | 180-150 |
| 24# | 1000-850 | 100# | 150-125 |
| 30# | 850-710 | 120# | 125-106 |
| 36# | 600-500 | 150# | 106-75 |
| 40# | 500-425 | 180# | 90-63 |
| 46# | 425-355 | 220# | 75-53 |
| 54# | 355-300 | ||
