Aluminum oxide grits brown fused alumina in mesh #36 #46 #54 #60
Brown aluminum oxide is made of high-quality bauxite, anthracite, and iron filings. It is cooled and smelted at a high temperature by more than 2000 degrees in an electric arc. It is crushed and shaped by a jaw crusher and a ball mill. After magnetic separation, the sieve is divided into various kinds. Its compact texture, high hardness, suitable for the manufacture of ceramics, grinding of high tensile metal and grinding, polishing, sandblasting, precision casting, etc., can also be used to manufacture advanced refractory materials.
Brown aluminum oxide is a generally used material in manufacturing abrasive products and refractory products. It is not so hard as WA grain. The products made from brown fused alumina is very suitable for tough task like large sandblasting outdoor, rough grinding work, etc. Meanwhile, it is a very moderately cost-efficient material comparing with WA.
| 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 | Size | Chemical composition(%) | ||||
| Al2O3 | Fe2O3 | SiO2 | TiO2 | |||
| Abrasives | 12#-54# | ≥95 | ≤0.5 | ≤1.5 | ≤3.0 | |
| 54#-120# | ≥94 | |||||
| 150#-240# | ≥93 | |||||
| 240#-400# | ≥94 | ≤2.0 | ≤1.5 | ≤3.0 | ||
| 600#-1000# | ≥93.5 | |||||
| 1000#-1500# | ≥93 | ≤2.0 | ≤1.5 | ≤3.0 | ||
♦Application
1.Abrasive: Produce ceramic grind wheel, resinoid grinding wheel, Grinding stone, Grinding block, sand paper, 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 furnace 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 coating.
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