Moderate Hardness Emery Powder Black Fused Alumina F 12- F240 for polishing and Grinding
1. Product Description of Emery Powder Black Fused Alumina
Black Fused Alumina is also called as black emery powder,which belongs to the group of electric corundum,
it is produced by the high alumina bauxite, high iron bauxite or iron oxide scrap in an electric arc furnace under
high temperature.
Black Fused Alumina contains 60-85% alumina,it is one kind of abrasive specially made by human control,
which has the stable quality and performance compared with the second grade brown fused alumina.
The production process determines black aluminum oxide has the advantages of low power consumption and
little emission than that of brown aluminum oxide. It is one environment friendly abrasive.
2. Main Technical Index of Emery Powder Black Fused Alumina
| Main Technical Index |
| Color | Black |
| Crystral Structure | Trigonal |
| Shape | Block,Sharp |
| Mohs Hardness | 8.0-9.0 |
| Vicker Hardness | 2000-2200kg/mm2 |
| Specific Gravity | ≥3.5g/cm3 |
| Bulk Density | 1.22-1.68 g/cm3 |
| Chemical index | Al2O3≥60% Fe2O3 6-12% |
| SiO2≤25% TiO2 2-4% |
| Quality Level | Ordinary |
| Grit Size | F12-F240 |
3. Main Grinding & Polishing Application of Black Fused Alumina:
Firstly, black Fused Alumina can be used for polishing purpose.
The fine grain e.g.F #100 or the finer grains is used for sand blasting, grinding and polishing of various stainless
steel, ordinary steel, copper, aluminum, bamboo, glass and other workpieces.
Especially when polishing the treatment of stainless steel surface, it will achieve more prominent effect,
it will not easy to burn the treatment and get uniform color and good visual effect.
Secondly, Black Fused Alumina can be used for dual grinding and polishing purpose.
It could be mixed with other higher hardness and better wear resistance abrasives to make polishing wheels,
fiber wheels, abrasive belts, etc. Then it will achieve better polishing effect and higher cost performance compared
with the products made by single black aluminum oxide or purely other polished materials.
In addition,Black Fused Alumina is also uesed in the following application:
Bonded Abrasives;
Coated Abrasives;
Blasting Media;
Anti-slip wear-resistant aggregates;
Refractory;
Polishing waxes;
5. Product Pakages of Black Fused Alumina
- Ton Bag
- 25kg Bag+Pallets;
- Special packages can be customized.
6. Plant Picture of Black Aluminum Oxide Manufacturer
7. Why Choose us?
- 20 years professional black aluminum oxide manufacturer
- Most advanced production line and testing equipment
- Stable quality and favorable price
- More than 20 invention & utility model patents
- Certificated by ISO9001&14001
- Main Suppliers of Saint-gobain group,Fosroc group etc.
Product Tags:
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Moderate Hardness Emery Powder , Black Fused Alumina Emery Sand F12 - F240 For Polishing / Grinding Images
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