Black fused alumina/aluminum oxide (BA) (lower aluminum oxide abrasice) is a new type abrasive material for polishing various metal
- It is featured with high hardness, strong tenacity, good self-sharpening, good cohesiveness, higher durability, less heat generated in grinding and giving the metal works high finish, less power weakened in grinding
- It is mostly used in grinding and polishing stainless steel, metal works, optical glass, bamboo or articles
- It is also the new grinding material of producing colophony grinding wheels, slice and emery cloth
Physical and chemical analysis:
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- Al2O3: 78% minimum
- TiO2: 3.5% maximum
- Fe2O3: 5% maximum
- SiO2: 9% maximum
- Crystal system: hexagonal
- Color: black/brown
- Micro hardness: HV 1,800 to 2,200
- Grinding ability (compared with diamond as one): 0.10
- Hardness (mohs): 9
- True density: 3.9g/cm3
- Bulk density: 1.68 to 1.95g/cm3
- Applications:,ul>
- Suitable for grinding high-speed, high carbon steel
- High-grade refractory materials
- Abrasives tool
- Grinding and polishing
- Ceramics
- LED
- Sandblasting