White electric emery for sandblasting
1. Electric emery Description:
Electric emery, a kind of high-grade refractories, was made from the imported high quality alumina by melting above 2 000 in the electric arc furnace and cooling.
It is white with the main crystal phase αAl2O3.
2. Electric emery Applications:
The abrasive tools made of it are suitable for grinding high carbon steel, high-speed steel and chilled steel. It can also be used as lapping and polishing medium, precision founding sand, coating materials, catalyst carrier, special ceramics and super refractory materials.
3. Electric emery Chemical & Physical Analysis:
| Model: WA F#80 | ||||
| Chemical compositions | Physical properties | |||
| Items | Value of specification (%) | Items | Property | |
| Al2O3 | 99.2min | Color | White | |
| SiO2 | 0.1max | Bulk density | 1.75-1.95g/cm3 | |
| Na2O | 0.35max | Grain density | 3.90g/cm3 min | |
| Fe2O3 | 0.1max |
hardness |
Morse hardness | 9 |
| Micro hardness | 21600-22600kg/mm3 | |||
| Usage | Sandblasting | content of magnetic substance | 0.0023%max | |
