Audited Supplier
Alumina Grinding Ball
Introduction:
Grinding Balls are suitable for grinding medium used in ball grinding machines.
Alumina grinding balls refer to materials such as bauxite, roller powder, industrial alumina powder, and high-temperature calcined Alpha alumina powder as raw materials, after batching, grinding, milling (pulping, mud making), forming, and drying , Sintering and other processes, mainly used as a grinding medium and widely used ball stone. According to different alumina content, it can be divided into medium-aluminum balls, medium-high aluminum balls and high-aluminum balls. Generally, we classify those with 60%-65% alumina content as medium-aluminum balls, and those with 75%-80% alumina content are called medium-aluminum balls. Medium and high alumina balls, with more than 90% alumina content are high alumina balls. Among them, the high-alumina balls are subdivided into 90 porcelain, 92 porcelain, 95 porcelain and 99 porcelain. Due to its extremely high production cost, few large-scale manufacturers manufacture 99 porcelain in large quantities. At present, it is mainly made by hand by some special ceramic factories.
| Product | Al2O3 (%) | Bulk density (g/cm2 ) | Water absorption | Mohs Hardness scale | Abrasion loss (%) | Color | |
| High Alumina Grinding Balls | 92 | 3.65 | 0.01 | 9 | 0.011 | White | |
| Appearance Demand | |||||||
| High Alumina Grinding Balls | |||||||
| Crack | Not Permission | ||||||
| Impurity | Not Permission | ||||||
| Foam hole | Above 1mm not permission, size in 0.5mm permit 3 balls. | ||||||
| Flaw | Max. size in 0.3mm permit 3 balls | ||||||
| Advantage | 1.High Alumina Content 2.High density 3.High Hardness 4.High Wearing Feature | ||||||
| Warranty |
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