Customization: | Available |
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Natural Abrasive Type: | Natural Corundum |
Artificial Abrasive Type: | Corundum Abrasives |
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Min 95% AL2O3 Barmac Brown Aluminum Oxide BFA F12-F220 for Bonded Abrasives
Brown Aluminum Oxide is also named as brown fused alumina, it is made by high-quality bauxite,coke (anthracite) as main raw materials, melting in an electric arc furnace at a temperature over 2200ºC,then made into different grain size through cooling crystallization, sort, crush, magnetic separation , screen size,blow cleaning etc..Its main chemical composition is Al2O3 which is over 95%, it has the characteristics of high hardness,great toughness and sharpness.
By Al2O3:
By application:
By smelting type:
By crushing type:
By Additional treatment:
Main Technical Index of Brown Aluminum Oxide BFA
Commodity | Usage | Grit | Main Chemical Index | ||||
Al2O3 | TiO2 | SiO2 | Fe2O3 | Magnetic | |||
Brown Aluminum Oxide
|
Abrasive |
F4~F80 P12-P80 |
≥95% |
≤3.5% |
≤1.0% | ≤0.30% | ≤0.05 |
F90~F150 P100-P150 |
≥94% |
≤3.5% |
≤1.0% | ≤0.30% | ≤0.03 | ||
F180~F220 P180-P220 |
≥93% |
≤3.5% |
≤1.0% | ≤0.30% | ≤0.03 | ||
Refractory | 0-1mm,1-3mm |
≥95%
|
≤3.5%
|
≤1.0%
|
≤0.30%
|
/ | |
3-5mm,5-8mm | |||||||
0-25mm,0-30mm | |||||||
200mesh | ≥94% | ≤3.5% | ≤1.0% | ≤0.30% | / | ||
325mesh | ≥94% | ≤3.5% | ≤1.0% | ≤0.30% |
/ |
Main Physical Index | |
Color | Brown |
Crystal Structure | Trigonal |
True Specific Gravity | ≥3.97g/cm3 |
Bulk Density | 1.68-1.98g/cm3 |
Vicker Hardness | 2100kg /mm2 |
Mohs Hardness | ≥9 Mohs |
Compressive strength | 34N |
Melting point | 2050ºC |
Refractoriness | 1900ºC |
Furnace Type | Tilting furnace |
Crushing Method | Barmac,Roller,Ball mill |
Supply Capacity
Main Applications of Brown Aluminum Oxide BFA
Bonded abrasives : resin cutting discs, grinding wheels,honing stones etc.
Coated abrasives: sandpaper, sandbelts,flap wheels etc.
Sandblasting media to clean,polish,cut or finish surfaces both in dry or wet blasting.
Refractory materials: castable, refractory brick etc.
Anti-skid materials in high traffic areas,aircraft runway,parking floor,bridge etc.
Grit size: 16#, 20#, 24#, 30#, 36#, 46#, 54#, 60#, 80#, 100#, 120#, 150#, 180#, 220#
Micropowder: 240#, 280#, 320#, 360#, 400#, 500#, 600#, 800#, 1000#, 1200#, 1500#, 2000#
Refractory Grit size:1-0mm, 3-1mm, 5-3mm, 5-8mm, -200mesh, -240mesh, -320mesh.