- Contact Person : Mr. Guo Shuhua
- Company Name : Xinmi Jinding Keep Warm Refractory Co., Ltd.
- Tel : 86-371-69823642
- Fax : 86-371-69825158
- Address : Henan,Xinmi,54 Nanmixin Road
- Country/Region : China
- Zip : 452370
High grinding white alumina oxide
High grinding white alumina oxide
With high quality alumina oxide powder as raw materials, white fused alumina is produced by fusing and extracting from crystallization. It is featured by high purity, self-sharpening, and acid-alkali and corrosion resistance, temperature tolerance. Compared with brown fused alumina, its thermal stability properties is slightly higher and toughness is slightly lower. The abrasive tools made of it are applicable for grinding high carbon copper and high-speed steel.
White fused alumina physical indicators:
Purpose | Specification | Chemical composition(%) | Magnetic material content(%) | ||||
Al2O3 | Na2O | SiO2 | CaO | ||||
For abrasive | F | 12#—80# | ≥99.0 | ≤0.5 | — | ≤0.4 | ≤0.003 |
90#—150# | ≥98.5 | ≤0.6 | ≤0.003 | ||||
180#—240# | ≥98.2 | ≤0.7 | — | ≤0.4 | ≤0.002 | ||
W | 1#-63# | ≥97.5 | ≤0.8 | ≤1.0 | ≤0.5 | ≤0.001 | |
For refractory | Size sand | 0-1mm1-3mm3-5mm5-8mm8-12mm | ≥99.0 | ≤0.5 | — | ≤0.4 | ≤0.003 |
farine | 180#—0200#-0320#-0 | ≥98.5 |
| ≤0.3 | ≤0.5 | ≤0.001 | |
Attention: F means the specification for bonded abrasives and sandblastingW means microry powder. 320# is W40.
Physical properties of White Fused Alumina:
Item | index |
Color | Pure white |
Crystalline form | Trigonal system |
Hardness (Mohs) | ≥9.0 |
Melting point (degree) | 2250 |
The Max. temperature (degree) | 1900 |
True Density (g/cm3) | ≥3. 90 |
Linear expansion coefficient (0—1600degree) | 7--9 |
High grinding white alumina oxide
