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REFRACTORIESBAIYUN group specialize in manufacture and supply refractory and abrasive raw materials, such as white fused alumina, brown fused alumina, tabular alumina, silicon carbide, bauxite and mullite, etc.
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ABRASIVESBAIYUN group specialize in manufacture and supply refractory and abrasive raw materials, such as white fused alumina, brown fused alumina, tabular alumina, silicon carbide, bauxite and mullite, etc.
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METALLURGYBAIYUN group specialize in manufacture and supply refractory and abrasive raw materials, such as white fused alumina, brown fused alumina, tabular alumina, silicon carbide, bauxite and mullite, etc.
Bauxite
Key words:
Bauxite
Product Description
Production process and characteristics:
Using bauxite and charcoal (anthracite) as raw material, and fused under high temperature in electric arc furnace. The main chemical components are Al2O3, and TiO2. It also contains small amounts of SiO2 and Fe2O3, etc. The micro hardness is 1800-2200kg/mm2. The toughness is higher than Silicon Carbide. The abrasive tools made by brown fused alumina are suitable for grinding carbon steel, normal alloy steel, malleable cast iron and hard bronze etc. Brown fused can also be used for making fine quality refractory etc. The refractoriness of high-alumina clinker is up to 1850℃.It has strong chemical stability and good physical properties.
Applications:
Brown fused alumina is a tough, sharp abrasive which is suitable for grinding metals which has high tensile strength. It’s an excellent material for making refractory products because of the thermal properties. This material is also be used in blasting and surface hardening. It also can be made into ceramic grinding wheel, resin grinding wheel, grinding head, grinding blocks, abrasive paper, abrasive belt, emery cloth, polishing wax, abrasives, grinding paste and paint etc.
Brown Fused Alumina (refractory)
| Grit Size | Al2O3 | SiO2 | TiO2 | Fe2O3 |
| 0-50mm | ≥ 94.50% | ≤1.20% | ≤3.0% | ≤0.25% |
| 0-1mm | ≥95.00% | ≤ 1.20% | ≤3.0% | ≤0.25% |
| 1-3mm | ≥95.00% | ≤ 1.20% | ≤3.0% | ≤0.25% |
| 3-5mm | ≥95.00% | ≤ 1.20% | ≤3.0% | ≤0.25% |
| 5-8mm | ≥ 95.00% | ≤1.20% | ≤3.0% | ≤0.25% |
Brown Fused Alumina (abrasives)
| Grit Size | Al2O3 | SiO2 | TiO2 | Fe2O3 |
| 12-80# | ≥95.00% | ≤ 1.20% | ≤3.0% | ≤0.25% |
| 100-180# | ≥95.00% | ≤1.20% | ≤3.5% | ≤0.25% |
| 240-280# | ≥94.50% | ≤1.50% | ≤3.5% | ≤0.30% |
Physical Performance Index
| Item | Index |
| Color | Brown |
| Crystal Shape | Trigonal |
| Mohs Hardness | ≥9.0 |
| Melting Point(℃) | 2050 |
| True Density(g/cm3) | ≥3.90 |
Packing：1MTbigbagor25kgpaperbag*40bagsononepallet; Aspercustomer’srequirement
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