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Brown fused alumina powder using calcined bauxite, coke, and iron by controlled melting in an electric arc furnace at a high temperature. Bauxite Used for producing BFA contains high α-Al2O3. After the fusion process, the materials are mixed and fused into liquid materials, then cooled down and crushed(milled)into lump sizes. The lump sizes are then ground into finer grades or powders. Brown fused alumina has high compression strength, toughness, excellent self-sharpening, low thermal expansion coefficient, and excellent hydrophilia and cleanliness.
The process of brown fused alumina fine powder 0-1mm for refractories:
Calcined bauxite is broken into crushing machine — elevating– roll crusher mill– sizing —magnetic separator —fine sieve —water washing (acid washing )—package (25kg/pp bag or paper bag,40 bags/ton bag or pallet )
Chemical composition of brown fused alumina fine powder 0-1mm for refractories:
| Application | Type | Size | Chemical composition(%) | |||
| Al2O3 | Fe2O3 | SiO2 | TiO2 | |||
| refractory | Sand | 0-1mm | 95 Min | 0.3 Max | 1.5 Max | 3.0 Max |
| 1-3mm | ||||||
| 3-5mm | ||||||
| 5-8mm | ||||||
| Fine powder | 100mesh | 94.5 Min | 0.5 Max | 1.5 Max | 3.0 Max | |
| 200 mesh | ||||||
| 325 mesh | ||||||
| Hardness | 9.0 mohs | |||||
| Working Temp | 1900℃ | |||||
| Melting Point | 2200℃ | |||||
Application of brown fused alumina fine powder 0-1mm for refractories:
1. Abrasive: Produce ceramic grind wheel, resinoid grinding wheel, Grinding stone, Grinding block, sandpaper, sand cloth, sand belt, polish wax, abrasive paste, coating, etc.
2. Refractory material: Mainly used for abrasion and high temperature resistant, inoxidizable aggregate and filling of shaped and monolithic refractory in steel metallurgy, various industrial stoves, electric furnaces, etc.
3. Sandblasting abrasive: Mainly used for various material workpieces to decontaminate, derusting, prevent corrosion, remove oxide skin, etc.
4. Abrasion resistance ground: Mainly used for non-slip of airport and road, chemical factory board paving.
5. Precision casting: Investment casting technics of stainless steel and aluminium casting in the coating.
fused aluminum oxide products do not have a known shelf life. As long as the product is maintained in the original sealed container and stored in a cool, dry, ventilated area, our product will last indefinitely
The specific weight is the ratio of the weight of a body to its volume. The specific weight of corundum under normal conditions is 3.94 g/cm3.
The description of the grain shape can range from “angular” to “acicular” to “spherical”. When the value of the dimensionless form factor is 1, the grain is spherical. The smaller the form factor, the pointier the grain.
The specific surface means the outer surface of a substance including all accessible pores in relation to the mass. It is determined using the Brunauer-Emmett-Teller (BET) method.
Centerless grinding Cylindrical grinding Foundry snagging Internal grinding Mounted point grinding Portable grinding Surface grinding Toolroom grinding
Structure is basically the spacing between abrasive grains. An open structure would be 12 or higher while a closer structure would be 6 or so. Here again, the structure depends on a variety of factors not the least of which is how difficult the material is to grind.
Over the past 18 years, TAOANG products range from raw material bauxite to processing follow-up products brown fused alumina, finishing white fused alumina and dense fused alumina, bubble alumina, and fused alumina micro powder. The production process is
Over the past 18 years, TAOANG products range from raw material bauxite to processing follow-up products brown fused alumina, finishing white fused alumina and dense fused alumina, bubble alumina, and fused alumina micro powder. The production process is
Fused Alumina is the tooth of industry and is widely used in various industries. TAOANG is committed to sharing information on the upstream and downstream industries of fused alumina. We are glad to announce that one kind of
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