Customization: | Available |
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Natural Abrasive Type: | Natural Corundum |
Artificial Abrasive Type: | Corundum Abrasives |
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Sandblasting Media Abrasives Brown Fused Alumina Powder For Grinding And Polishing
Brown aluminum oxide also called Brown fused alumina, Brown corundum, BFA, etc., is a kindly of artificial corundum, HS code: 2818101000 .It is made of high-quality bauxite as main raw material, fusing and purifying in a tilting electric arc furnace at high temperature of over 2200°c, and then shaped into different grain size through process of crystal, choosing, crushing, magnetic separation, air cleaning, and screening.Main chemical composition is Al2O3 95% Min. and small quantity of TiO2, Fe2O3, SiO2, etc. It has characteristics of high hardness, great toughness, self-sharpness and good grinding performance.
By Al2O3:
By application:
By smelting type:
By crushing type:
By Additional treatment:
Commodity: Brown Fused Alumina
Production Type: Tilting Furnace, Barmac Crushing, Air Blow Cleaning
Color
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Brown
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Mosh hardness
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9.0
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Melting point
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2250
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The maximum temperature
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1900
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Specific gravity
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3.6-3.9g/cm3
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Bulk density
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1.53-1.99g/cm3
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Real density
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3.90g/cm3
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Chemical Composition
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Al2O3
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TiO2
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SiO2
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Fe2O3
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CaO
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F4-F80
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95.0-96.0
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1.50-3.80
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1.21
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0.3
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0.45
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F90-F150
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93.5-95.5
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1.50-3.80
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1.21
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0.3
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0.45
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F180-F220
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93.5-95.5
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1.50-3.80
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1.21
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0.3
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0.45
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F220 Finer
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≥92.0
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1.50-3.80
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1.21
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0.3
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0.45
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Supply Capacity
Abrasive
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Produce ceramic grind wheel, resinoid grinding wheel, Grinding stone, Grinding block, sand paper, sand cloth, sand belt, polish wax, abrasive paste, coating etc..
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Refractory material
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For abrasion and high temperature resistant, inoxidizable aggregate and filling of shaped and monolithic refractory in steel metallurgy, various industrial stoves, electric furnace etc..
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Sandblasting abrasive
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Mainly used for various material workpieces to decontaminate, derusting, prevent corrosion, remove oxide skin etc..
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Abrasion resistance ground
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Mainly used for non-slip of airport and road, chemical factory board paving.
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Precision casting
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Investment casting technics of stainless steel and aluminium casting in coating.
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What Is Difference Between Tilting Furnace Melted BFA & Fixing Furnace Melted BFA ?
Ball Milling & Barmac Process?
1. Tilting furnace process affects SiO2, SiO2 <1% by Tilting furnace, SiO2 <1.5% is by fixed furnace.
2. Barmac affects the density, the grain shape is rounder & the density is greater than ball milling
3. The Tilting furnace made BFA has high Al2O3 content
4. The corundum has good toughness & more suitable for abrasive products by dumping furnace process
The difference between F-grit & P-grit Abrasive grains:
F-grit is more suitable for bonded abrasive tools.
P-grit is more suitable for coated abrasive tools. It is with a closer tolerance size distribution, lower density, and better self-sharpening ability than non-P-grit abrasives, which means that they offer a more consistent surface finish.
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.