Grinding Ball
Grinding Balls are suitable for grinding medium used in ball grinding machines.
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| Technical Specification of Grinding Ball | ||||||
|---|---|---|---|---|---|---|
| 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 |
| Medium alumina grinding balls | 65-70 | 2.93 | 0.01 | 8 | 0.01 | Yellow-White |
| Appearance demand | ||||||
| High alumina grinding balls | Medium alumina grinding balls | |||||
| Crack | Not permission | Not permission | ||||
| Impurity | Not permission | 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 |
a) High alumina content b) High density c) High hardness d) High wearing feature |
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| Warranty |
a) By national standard HG/T 3683.1-2000 b) Offer lifetime consultation on problems occurred |
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Type1:
| Typical chemical compositions | |||
|---|---|---|---|
| Items | Proportion | Items | Proportion |
| Al2O3 | 65-70% | SiO2 | 30-15 |
| Fe2O3 | 0.41 | MgO | 0.10 |
| CaO | 0.16 | TiO2 | 1.71 |
| K2O | 4.11 | Na2O | 0.57 |
| Products size data | ||
|---|---|---|
| Spec.(mm) | Volume(cm3) | Weight(g/pc) |
| Φ30 | 14 ± 1.5 | 43 ± 2 |
| Φ40 | 25 ± 1.5 | 100 ± 2 |
| Φ50 | 39 ± 2 | 193 ± 2 |
| Φ60 | 58 ± 2 | 335 ± 2 |
Type2:
| Typical chemical compositions | |||
|---|---|---|---|
| Items | Proportion | Items | Proportion |
| Al2O3 | ≥92% | SiO2 | 3.81% |
| Fe2O3 | 0.06% | MgO | 0.80% |
| CaO | 1.09% | TiO2 | 0.02% |
| K2O | 0.08% | Na2O | 0.56% |
| Specific properties | ||
|---|---|---|
| Spec.(mm) | Volume(cm3) | Weight(g/pc) |
| Φ30 | 14 ± 1.5 | 43 ± 2 |
| Φ40 | 25 ± 1.5 | 126 ± 2 |
| Φ50 | 39 ± 2 | 242 ± 2 |
| Φ60 | 58 ± 2 | 407 ± 2 |