Description:
Alumina grinding ball has been widely used in ball mills as abracive media for ceramic raw materials and glaze materials in ceramic factories,cement factories,enamel factories and glasswork owing to the excellence of high hardness,high wear resistance.During the abrasive or grinding processing,ceramic ball will not be broken,it will not pullute the material to be grinded.
Main specification:
Item | 95% aluminum ball | 92% alumina ball | 65-75% alumina microlite ball | 60-70% alumian Carborundum ball | |
Chemical composition % | Al2O3 | 95 | ≥92 | 65-75 | 60-70 |
SiO2 | 3 | 3.81 | 30-15 | 20-15 | |
Fe2O3 | 0.05 | 0.06 | 0.41 | <0.5 | |
TiO2 | 0.04 | 0.02 | 1.7 | 1.8 | |
Other elements (%) | 1.9 | 2.53 | 5 | 10 | |
Bulk density (g/cm3) | 3.68 | 3.65 | 2.93-3.0 | 2.80-2.90 | |
Water absorption (%) | <0.005 | <0.01 | <0.01 | <0.05 | |
Mohs hardness (Mohs) | 9 | 9 | ≥8 | ≥8 | |
Compressive strength (Mpa) | 2100 | >2000 | >1000 | >1000 | |
Wear loss (g/kg.h) | 0.0084 | 0.01 | 0.011 | <0.08 | |
Color | White | White, yellow | White | Brown | |
Main materials | Alumina | Alumina | Refined aluminum bauxite powder | Aluminum bauxite powder | |
Method of formation | Isostatic Pressing | Isostatic Pressing | Impact Briquetting | Handmade | |
Size (mm) | 25mm-75mm |