Brown aluminum oxide is made by high quality bauxite as main material, fusing and purifying in a pouring electric arc furnace at a temperature of over 2200C, and made into different grain sizes through crystal, choosing, crashing, magnetic, separating, screening, washing etc. It is characterized by its high hardness, good toughness and sharp shape in particles.
Brown Fused Alumina(BFA) is made from Calcined Bauxite. It is a hard and tough material, used in manufacturing of grinding wheels (both vitrified and resin bonded) and coated products. These grains are also used for shot blasting and as polishing Media. Refractory grade BFA is used as a raw material in the manufacture of high Alumina refractory. It is available in grit sizes as per FEPA for abrasive applications and group grits for refractory applications.
Features & Advantages:
1. Abrasive blasting
2. Grinding
3. Resin bond abrasive tools
4. Coated abrasives
5. Corundum functional fillers
6. Filter media
7. Abrasive water-jet cutting
Products reliable, stable performance, high quality, easy to use.
Applications:
1.For Free grinding, such as glass industry.
2.For Friction products and abrasion resistance ground
3.For Resin or ceramic bonded abrasive,such as grinding wheels,cutting off wheels.
4.For Refractory Raw material, Wear-resistant and fire-proof products.
5.For Grinding and polishing ,such as gringing stone, Grinding block, flap disc.
6.For Coated abrasives,such as abrasive paper,abrasive cloth,abrasive belt.
7.For Producing mold of precision casting and Grinding, lapping and polishing media.
Physical & Chemical Index:
| Purpose | Specification | Chemical composition(%) | Magnetic material ≤ | ||||
| Al2O3(≥) | Fe2O3(≤) | SiO2≤ | TiO2≤ | ||||
| For abrasive | F grit | 4#-80# | 95.0 | 0.3 | 1.5 | 3.0 | 0.05 |
| 90#-150# | 94.0 | 0.03 | |||||
| 180#-240# | 93.0 | 3.5 | 0.02 | ||||
| P grit | 8#-80# | 95.0 | 0.2 | 1.2 | 3.0 | 0.05 | |
| 100#-150# | 94.0 | 0.03 | |||||
| 180#-220# | 93.0 | 0.3 | 1.5 | 3.5 | 0.02 | ||
| Micro Powder | W0.5-W63 F320-F1500 |
92.5 | 0.5 | 1.8 | 4.0 | ||
| For refractory | Size for Sand | 0-1mm 1-3mm 3-5mm 5-8mm 8-12mm |
95.5 | 0.3 | 1.5 (1.0 from Tilting Furnace) | 3.0 | |
| 0-3mm 0-5mm 0-10mm 0-25mm |
95.0 | 0.3 | 1.5 | 3.0 | |||
| Fine powder | 140F 200F 325F |
94.5 | 0.5 | 1.5 | 3.5 | ||
