Brown fused alumina oxide
The main material of brown fused alumina is bauxite, which is electrically fused in high temperature. It is brown and features high hardness and toughness. The abrasive tools made of it are suitable for the grinding of carbon steel, malleable cast iron, hard bronze, etc. In addition, they are also used as refractory materials, chemical additive, precision founding and anti-sliding materials.
Chemical composition:
| Type | Grit size | AL2O3 % | TiO2 % | CaO % |
|---|---|---|---|---|
| BFA-FEPA F/P | F4-F80 (P12-P80) | 95.00-97.50 | 1.5-3.8 | ≤0.45 |
| BFA-FEPA F/P | F90-F150 (P100-P150) | 94.00-95.50 | 1.5-3.8 | ≤0.45 |
| BFA-FEPA F/P | F180-F220 (P180-P220) | 93.00-95.50 | 1.5-3.8 | ≤0.45 |
| BFA-FEPA F/P | F220(P220) Finer | ≥92.00 | 1.5-3.8 | ≤0.45 |
Physical property:
| Basic Minerals | Crystal Size(μm) | True Density(ɡ/cm³) | Bulk Density(ɡ/cm³) | Hardness (kg/mm³) |
|---|---|---|---|---|
| Alpha–Al2O3 | 400-800 | ≥3.90 | 1.40-1.95 | 1800-2200 |
Bulk Density
| Grit size | Bulk density(ɡ/cm³) | Grit size | Bulk density(ɡ/cm³) |
|---|---|---|---|
| F24 | 1.8-1.97 | F80 | 1.61-1.79 |
| F30 | 1.77-1.97 | F90 | 1.59-1.77 |
| F36 | 1.75-1.95 | F100 | 1.57-1.75 |
| F40 | 1.73-1.93 | F120 | 1.54-1.72 |
| F46 | 1.70-1.90 | F150 | 1.50-1.70 |
| F54 | 1.68-1.85 | F180 | 1.48-1.68 |
| F60 | 1.66-1.84 | F220 | 1.45-1.65 |
| F70 | 1.63-1.82 |
Grain Shape
| Shape | Processing machinery | |
|---|---|---|
| BFA-N | Angular | Rolling Milling & Ball Milling |
| BFA-H | Spherical | Ball milling & Shape Treatment Machine |
Standard： FEAP- F (Bonded abrasives), FEPA- P (Coated abrasives)
Gritavailable: Grit FEPA F12 – F220#. F240-F2000# (Micro powder)
Grit FEPA P12-220#. P240-P2500# (Micro powder)
Other sizes are also available on request.
- Wet and dry blasting
- Grinding, lapping and polishing media
- Resin bonded grinding wheels and segments
- Resin bonded abrasive and coated abrasive products
- Wear-resistant and fire-proof products
- Friction products and abrasion resistance ground
- Producing mold of precision casting
