Calcined Brown fused Alumina
CalcinedBrown fused aluminashows blue after calcination at 1350℃ temperature. The impurities existed in the grains will be separated out & vaporized . The surface of each particle changes coarser, improves the hydrophilicity greatly. After 1350℃ calcinations ,cracks from crushing and crystal cooling process be closed ,the toughness,strength is some better than normal BFA and enhancing the wear resistance too.
Main Chemical& Physical Properties
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Chemical Composition %
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Physical Properties
|
|
Al2O3
|
94.5-96.0%
|
Color
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Dark Blue
|
|
SiO2
|
0.8-1.2%
|
Melting Point℃
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2050
|
|
Fe2O3
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0.05-0.2%
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Mohs hardness
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≥9.0
|
|
TiO2
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2.5-3.5%
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Bulk Density g/cm3
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1.4-1.85
|
|
CaO
|
0.2-0.25%
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True density g/cm3
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≥3.90
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Available Sizes：F12 F14 F16 F20 F22 F24 F30 F36 F46 F54 F60 F70 F80 F90 F100 F120 F150 F180 F220
P12 P14 P16 P20 P24 P30 P36 P46 P54 P60 P80 P100 P120 P150 P180 P220
Main Applications:
This product is mainly used for high speed strong belt, High grade bonded abrasive, resin wheel ,sand paper, tray ,large cutting disc, and can also be used to grind stainless steel plate, alloy steel and cemented carbide
