Low Cost Black Aluminium Oxide Artifical Corundum F100 - F240 to
Make Polishing Fiber Wheels
1. Product Description of Emery Black Aluminium Oxide
Black Aluminum Oxide is a black crystal with Al2O3 and iron spinel
as the main ore phase, it selected the high
alumina bauxite, high iron bauxite or iron oxide scrap as the main
materials, then melted in an electric arc furnace
under high temperature .
Its main chemical composition is aluminum oxide (Al2O3), ferric
oxide (Fe2O3), and some silicon dioxide (SiO2),
titanium dioxide (TiO2) and other components.
Since black aluminum oxide is one wear-resistant product specially
made by human control, it has the consistent
intrinsic composition and crystallization condition,which offers
the stable performance compared with the second
grade brown aluminum oxide.
2. Main Technical Index of Emery Black Aluminium Oxide
| 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 Features of Emery Black Aluminium Oxide :
- Moderate Hardness
- Good Self-sharpness
- Low heat generation
- not easy to burn the treatment surface
- High Price/Performance Ratio
4. Main Application of Black Alumium Oxide to Make Fiber Wheels:
The fine grain of black aluminium oxide could be used for making
fiber wheels,which is suitable for grinding and
polishing various workpieces.
Black aluminum oxide could also be mixed with brown aluminum oxide,
or calcined brown aluminum oxide or
silicon carbide to make fiber wheels,that mixed fiber wheels has
the dual function of grinding and polishing,also
higher price/performance ratio. The technical staff could find out
the best solution and mixture ratio by experiments
according to their actual demands.
In addition,Black Aluminum Oxide is also uesed in the following
application:
Bonded Abrasives;
Coated Abrasives;
Blasting,Grinding,Polishing Media;
Anti-slip wear-resistant aggregates;
Refractory;
Fiber wheels；
Polishing waxes;
5. Product Pakages of Black Aluminium Oxide
- Ton Bag
- 25kg Bag+Pallets;
- Special packages can be customized.
6. Why Choose us?
- China Largest Black Aluminium Oxide Manufacturer,over 20 years
production experience;
- Occupies more than 60% Domestic Black Aluminium Oxide marketing;
- The Stable Supplier of Saint-gobain Group and Forsoc Group etc.
