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White fused alumina for refractories 1-3mm refers to white fused alumina grain with a particle size range of 1mm-3mm. Large blocks of white fused alumina produced by the smelting workshop are transported to the section sand production workshop, broken by the coarse crusher, and then screened; finally, White fused alumina products with particle sizes within a range of 1-3mm. It is the primary raw material for shaped refractory, unshaped refractory, and other applications. White fused alumina refractory grades is a high-grade refractory materials with high purity, high cleanness, coarse grain, low magnetic contents, high density, high bulk density, chemical stability, low porosity rate, and excellent crystal structure, corrosion, and acid-resistant. It is widely used in the production of refractory bricks, steel making industry, ceramic, glass, cement industry, etc.
Introduce of white fused alumina for refractories 1-3mm:
White fused aluminium oxide for refractories was from high-quality alumina by melting above 2000 in the electric arc furnace and cooling. It is white with the main crystal phase alpha-Al2O3. With Al2O3 purity of up to 99%, White fused alumina is a high-level refractory raw material that can work as refractory castable, aggregate, refractory coating, etc.
Chemical composite and physical properties of white fused alumina for refractories 1-3mm:
| Items | Grain |
| Al2O3 | 99.3%min |
| SiO2 | 0.10%max |
| Fe2O3 | 0.10%max |
| Na2O | 0.30%max |
| Melting point(℃) | 2250 |
| Real density(g/cm3) | 3.90min |
| Refractoriness （℃） | ≥1900 |
| Color | White |
| Size | 1mm-3mm |
Product features of white fused alumina for refractories 1-3mm:
Applications of white fused alumina for refractories 1-3mm:
A typical grinding wheel specification consists of the grit type, the grit size, the hardness, the structure and the bond. A typical grinding wheel specification would be A60-I10-VS. ‘A’ is the grit type (aluminum oxide), ’60’ is the grit size, ‘I’ is the relative hardness, ’10’ is the structure, and
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If you are roughing, choose a 36 to 80 grit. If you are intermediate grinding, use 80 through 180 grit. If you are finishing, use 220 through 240 grit.
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