Product Details:
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Raw Material: | Calcined Bauxite | Furnace: | Fixed Furnace |
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Crushing: | Barmac | Grains: | Round |
Bulk Density: | 3.9g/cm3min. | Abrasive Grain Sizes: | F12-240 |
Calcined Brown Fused Alumina 95% for Bonded and Coated Abrasives
1. Brown Fused Alumina Descriptions
Brown Fused Alumina is produced by the smelting of Calcined Bauxite in an electric arc furnace at temperatures greater than 2000oC. A slow solidification process follows the fusion, to yield blocky crystals. Strict control over Titania levels during the fusion process ensures optimum toughness of the grains.
The cooled crude is further crushed, cleaned of magnetic impurities in high intensity magnetic separators and classified into narrow size fractions to suit the end use. Dedicated lines produce products for different applications.
2. Brown Fused Alumina Characteristics
a. High hardness
b. High crystallinity
c. Good linear flow performance
d. Weak adherence
e. No explosion while using
f. No cracking
g. No pulverizing, abrasive product with dark blue color after burning
h. No net cracks and rust
3. Brown Fused Alumina Applications
Brown fused alumina is widely used as a raw material in many industries:
1. F-grit for bonded abrasives such as resin bonded grinding wheels, vitrified grinding wheels.
2. P-grit for coated abrasives such as sandpaper, sanding belts.
3. Blasting media, metal preparation.
4. Laminates, coatings, lapping, polishing.
5. Anti-slip applications like floor, ceramics, auto brake parts.
4. Brown Fused Alumina Packing
Brown Fused Alumina BFA Packing:
1). 25 kg/bag, in bulk;
2). 25 kg/bag, 40 bags/big bag;
3). 25 kg/ bag, 40 bags/pallet;
4).According to customer's requirement
5. Brown Fused Alumina Specifications
Tilting Furnace (Turn-over Furnace) Barmac Crushing
Items | Unit | Index | Typical | |
Chemical Composition | Al2O3 | % | 95%min | 95.56 |
SiO2 | % | 1.2max | 0.96 | |
Fe2O3 | % | 0.30max | 0.09 | |
TiO2 | % | 3.00max | 2.55 | |
Melting point | ℃ | 2050 | ||
Refractoriness | ℃ | 1980 | ||
True density | g/cm3 | 3.90min | ||
Mohs hardness | --- | 9.00min | ||
Refractory grain sizes | mm | 0-50, 0-1, 1-3, 3-5, 5-8 | ||
Fine powder | mesh | -80, 100, 150, 200, 325F | ||
Abrasives Grits | FEPA | 8, 14, 16, 20, 22,24, 30, 36, 40, 46, 60, 70, 80, 90, 100, 120, 150, 180, 220, 240 | ||
Fixed Furnace Barmac Crushing |
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Items | Unit | Index | Typical | |
Chemical Composition | Al2O3 | % | 95%min | 95.23 |
SiO2 | % | 1.5max | 1.28 | |
Fe2O3 | % | 0.30max | 0.17 | |
TiO2 | % | 3.00max | 2.62 | |
Melting point | ℃ | 2050 | ||
Refractoriness | ℃ | 1980 | ||
True density | g/cm3 | 3.90min | ||
Mohs hardness | --- | 9.00min | ||
Refractory grain sizes | mm | 0-50, 0-1, 1-3, 3-5, 5-8 | ||
Fine powder | mesh | -80, 100, 150, 200, 325F | ||
Abrasives Grits | FEPA | 8, 14, 16, 20, 22,24, 30, 36, 40, 46, 60, 70, 80, 90, 100, 120, 150, 180, 220, 240 |
Contact Person: Jason Chen
Tel: 86-18603794999