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Please click on the following grades to view detailed specification.
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92% MICROCRYSTAL ALUMINA BALLS (ROLLING)
The first national factory develops rolling method for balls diameter more than 400mm with quality of international level and changes the traditional thinking of no rolling method for large size.
￠60±1mm ￠50±1mm ￠40±1mm
Chemical Compostion (%) |
Al2O3 |
≥92% |
SiO2 |
7% max. |
Cao+MgO+Fe2O3+others: |
2% |
Bulk Density |
＞3.60g/cm3 |
Hardness (Mohs): |
≥9 |
Water Absorption: |
＜0.01% |
Self Wear Rate: |
＜0.012% (24h) |
Color : |
White |
Producing Technique
Equipment
Rolling machine by centrifugal theory,water and materials automatic adding system,different diameter of machine for different size of alumina ball iwht flexible adjustment of angle and rotate speed.
Key process:
- Interval of adding water and materials time based on size of alumina ball
- Different angle of rolling machine based on different product
- Exact control of water
- Wet control
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