Brown Aluminium Oxide
Brown alumina : An artificial abrasive, reduced from bauxite at high temperatures, with high hardness, high wear properties, often used in grinding, polishing and other processes. Brown corundum, also known as carborundum, is a brown artificial corundum made of bauxite, carbon materials and iron...
Brown alumina: An artificial abrasive, reduced from bauxite at high temperatures, with high hardness, high wear properties, often used in grinding, polishing and other processes.
Brown corundum, also known as carborundum, is a brown artificial corundum made of bauxite, carbon materials and iron chips by melting and reducing in electric arc furnace, so it is named for this. The main chemical composition of brown corundum is AL2O3, its content is 95.00%-97.00%, and contains a small amount of Fe, Si, Ti and so on. Brown corundum is the most basic abrasive, because of its good grinding performance, wide range of application, cheap price, is widely used.
Brown corundum is bauxite, coke (anthracite) as the main raw materials, in the arc furnace by high temperature smelting, with it made of abrasive tools, suitable for grinding high tensile metal, such as a variety of general steel, malleable cast iron, hard bronze, etc., can also manufacture high-grade refractory materials. Brown corundum has the characteristics of high purity, good crystallization, strong fluidity, low coefficient of linear expansion and corrosion resistance. Through the practice of dozens of refractory production enterprises, the product has the characteristics of no initiation, no pulverization and no cracking in the application process. In particular, its cost performance is much higher than that of traditional brown corundum, which makes it the best aggregate and filler for brown corundum refractory materials.
Specification introduction
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use
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Specification
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Main chemical composition%
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Magnetic material%
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Al2O3
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Fe2O3
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SiO2
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TiO2
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Abrasives
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F
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4#-80#
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≥95
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≤0.3
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≤1.5
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≤3.0
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≤0.05
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90#-150#
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≥94
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≤0.03
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180#-240#
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≥93
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≤0.3
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≤1.5
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≤3.5
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≤0.02
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P
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8#-80#
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≥95.0
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≤0.2
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≤1.2
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≤3.0
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≤0.05
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|
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100#-150#
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≥94.0
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≤0.03
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|||||
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180#-220#
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≥93.0
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≤0.3
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≤1.5
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≤3.5
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≤0.02
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W
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1#-63#
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≥92.5
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≤0.5
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≤1.8
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≤4.0
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-
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Refractory materials
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Duansha
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0-1mm 1-3mm 3-5mm 5-8mm 8-12mm
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≥95
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≤0.3
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≤1.5
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≤3.0
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-
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25-0mm 10-0mm 50-0mm 30-0mm
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≥95
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≤0.3
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≤1.5
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≤3.0
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-
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powder
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180#-0 200#-0 320#-0
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≥94.5≥93.5
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≤0.5
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≤1.5
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≤3.5
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-
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