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Black fused alumina
Black Fused Alumina is a black color artificial corundum for abrasives. It's made of fusion of bauxite and reducing agent in electric arc furnace. Black Fused Aluminium Oxide has certain content of Ferro Oxide and Silicon Oxide, which make it looks black. Black Fused Aluminium Oxde has moderate hardness, less heat during abrasives, good strength and can be used for sand blasting, polishing, grinding of stainless steel and other non-metal surfaces. It can also be used for production of grinding wheel and cutting wheels.
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- PRODUCTS
- WHITE FUSED ALUMINA
- BROWN FUSED ALUMINA
- SILICON CARBIDE
- CHROMITE SAND
- CERAMIC SAND
- GARNET SAND
- TABULAR ALUMINA
- BLACK FUSED ALUMINA
- ZIRCONIA FUSED ALUMINA
- GLASS BEADS
- BORON CARBIDE
- OTHER
- PRECIPITATED SILICA
- ZIRCON SAND
- IRON POWDER
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Properties
Chemical Composition(%)
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Chemical Composition(%) |
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Al2O3(%) |
Fe2O3(%) |
SiO2(%) |
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BA-1 |
75-85 |
9-11 |
≤8.0 |
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BA-2 |
60-75 |
10-12 |
≤10.0 |
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Advantage |
high toughness, |
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high temperature resistance |
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stable thermal property |
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strong cutting ability |
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durability |
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high work efficiency. |
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Parameter |
The color: black |
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The shape: particle in trigonal shape |
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Melt point:2050°C |
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The max temperature:1850°C |
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True density(g/cm3): ≥3.50 |
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Coefficient of linear expansion(0-1600°C): 7-9 |
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Available sizes |
JIS |
#8 #10 #12 #14 #16 #20 #24 #30 #36 #46 #54 #60 #70 #80 #90 #100 #120 #150 #180 #220 #240 #280 #320 #360 #400 #500 #600 #800 #1000 #1200 #1500 #2000 |
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FEPA |
F8 F10 F12 F14 F16 F20 F22 F24 F30 F36 F40 F46 F54 F60 F70 F80 F90 F100 F120 F150 F180 F220 F230 F240 F280 F320 F360 F400 F500 F600 F800 F1000 |
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Application
- It is used for the bicycle, motorcycle, sewing machine, and clock parts.
- Light ornament, plastic and hardware polishing, and also applicable to the sand blasting.
- It is the production materials: manufacturing resin-cutting slice, edges and corners grinding and coated abrasives.
- The black corundum particle and micro powder are suitable for stainless steel work piece polishing and abrading and making the whetstone and polishing paste.
- Black corundum sand is the preferred material of the slip-prevented road and coal pits warehousing.
