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1.
Grinding ceramic ball
The alumina grinding balls has been widely used in ball mills as abrasive media for ceramic raw materials and glaze materials in ceramic factories,ceramic factories,enamel factories and glasswork owing to the extraordinarily high density,high hardness,high abrasive resistance.During the abrasive processes,ceramic balls will not be broken it will not contaminate the materials to be grinded.According to the content of aluminum oxide grinding ceramic ball can be ranged as 60-70,65-75,92,95 but according to the size grinding ceramic ball can beφ25mm φ75mm.
2.
Main specification
Item | High alumina grinding ceramic ball | Middle alumina grinding ceramic ball | ||
Micro-crystal middle alumina | Carborundum middle alumina | |||
92Al2O3 | 95Al2O3 | 65-75Al2O3 | 60-70Al2O3 | |
Al2O3 | ≥92 | 95 | 65-75 | 60-70 |
SiO2 | 3.81 | 3 | 30-15 20-15 | 60-70 |
Fe2O3 | 0.06 | 0.05 | 0.41 | 0.5 |
TiO2 | 0.02 | 0.04 | 1.7 | 1.8 |
other | 2.53 | 1.9 | 5 | 10 |
Bulk density(g/cm3) | 3.65 | 3.68 | 2.93-3.0 | 2.90-3.0 |
Water absorption | 0.01 | 0.005 | 0.01 | 0.05 |
Mohs hardness(grade) | 9 | 9 | ≥8 | ≥8 |
Compression strength | 2000 | 2000 | 1000 | 1000 |
Abrasion | 0.01 | 0.01 | 0.02 | 0.03 |
color | white | white | Yellow ,white | brown |
Raw materials | Calcined alumina | Calcined alumina | Refined bauxite powder | bauxite powder |
Forming method | Isostatic pressing | Isostatic pressing | Impact briquetting | handmade |
