Brown fused aluminum oxide is bauxite, coke (anthracite), scrap iron as main raw materials, in electric arc furnace high temperature melting nei crystals into, it has high hardness and great toughness, particle xinfengrui, grinding force is powerful, high temperature resistant, the efficiency high characteristic, is the quality of abrasive abrasive materials and advanced refractory materials. Makes with it, apply to the abrasive high-tensil strength high metal, can cut, grinding various general steel, carbon steel, alloy steel, general malleable green steel, hard to wait, also can green steel as senior refractory materials, widely used in steel, chemical and other industries.
Typical Chemical composition(%) | Typical physical properties | |||
Tilting BFA | AL2O3 | 95-97.5 | Specific Gravity: | 3.95g/cm3 |
Fe2O3 | 0.3-0.1 | Bulk density(LPD): | 1.53-1.99g/cm3 | |
Si2O | 0.8-1 | Mohs Hardness: | 9.0 | |
Ti2O | 1.7-3.4 | |||
1st Grade BFA | AL2O3 | 92.5-95 | Specific Gravity: | 3.90g/cm3 |
Fe2O3 | 0.3-0.1 | Bulk density(LPD): | 1.53-1.99g/cm3 | |
Si2O | 1.0-2.0 | Mohs Hardness: | 9.0 | |
Ti2O | 1.5-4.0 | |||
2nd Grade BFA | AL2O3 | 92.5-95 | Specific Gravity: | 3.50-3.90g/cm3 |
Fe2O3 | 0.3-0.1 | Bulk density(LPD): | 1.30-1.90g/cm3 | |
Si2O | 1.0-2.0 | Mohs Hardness: | 7.0-9.0 | |
Ti2O | 1.5-4.0 | |||
3rd Grade BFA | AL2O3 | 92.5-95 | Specific Gravity: | 3.50-3.90g/cm3 |
Fe2O3 | 0.3-0.1 | Bulk density(LPD): | 1.30-1.90g/cm3 | |
Si2O | 1.0-2.0 | Mohs Hardness: | 7.0-9.0 | |
Ti2O | 1.5-4.0 |
Brown aluminum oxide application:
1. Used for refractory materials, castable refractory bricks, etc.
2.sand blasting – BFA as abrasive,hardness is moderate, high bulk density, no free silica, large specific gravity, good toughness, is an ideal “environmental” type sand blasting material, widely used in aluminum profiles, copper profile glass, washed denim Precision molds and other fields.
3. grinding grade abrasive—applied to picture tube, optical glass, monocrystalline silicon. Lens. watch glass.crystal glass.jade. etc.,
4, resin grinding —with suitable color.hardness. Toughness. particle cross-section type and edge retention.it is applied to resin abrasives with ideal effect;
5, coated abrasives — sandpaper.gauze
6, functional fillers— mainly used in automotive brakes. special tires. special construction products.etc.
can be used as a highway pavement. Aircraft runway. Terminal. Parking lot. Industrial floor. Sports ground and other wear-resistant materials;
7. Filter medium—It is a new application field of abrasive. use granular abrasive as the bottom medium of filter bed to purify drinking water or waste water. ;used for non-ferrous metal beneficiation: oil drilling mud weighting agent
8.Hydraulic cutting—It is a cutting medium, It relies on high-pressure hydraulic jet for basic cutting. It is applied to the cutting of petroleum (natural gas) pipelines, steel and other components. It is a new, environmentally friendly and safe cutting method.
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