For Abrasive Granular Black Fused Alumina
Specifications
Black fused alumina1. low Al2O3 and a certain amount of Fe2O3.
2. a new type abrasive material for polishing various metal
Black Fused Alumina
Black Fused Alumina
Is also known as low aluminum corundum. It is also a new type product of polishing material, and it is a dark gray crystal body made α-Al2O3 and ferropicotite as main ore in the electric arc furnace by smelting the bauxite. It has characteristics of moderate hardness, high toughness, high temperature resistance, and stable thermal stability. It is mainly suitable for free grinding, such as coarse grinding before electroplating products, mainly for polishing and sandblasting of stainless steel, fabricated metal products.
Black Fused Alumina Chemcal Analysis
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BA—1
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BA—2
|
|
Al2O3
|
81—85
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75—80
|
|
Fe2O3
|
9—11
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10—12
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|
SiO2
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≤8
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≤10
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Black Fused Alumina physical properties
Hardness (Mohs) ≥ 9.0
Melting point (°C) 2050
The maximum temperature (°C) 1850
True Density (g/cm3) ≥ 3. 50
Linear expansion coefficient (0-1600 °C) 7-9
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