Grinding Ceramic Ball
Grinding Ceramic Ball, is Aluminum oxide attrition as a result of its aluminum oxide high content, high density, high degree of hardness, high resistance to wear by widespread utilization in different type ceramics, porcelain glaze, glass and chemical factory thick hard material quality correct grinding and division. Divides into according to the aluminum content: 60-70%, 65-75%, 92%, 95% presses the specification minute: φ25mm-φ75mm
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Item
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High Alumina wear-resisting Ceramic Ball 95%Al2O3
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Middle Alumina wear-resisting ceramic Ball 92%Al2O3
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Micro-crystal middle-alumina 65-75%Al2O3
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Carborundum middle alumina 60-70%Al2O3
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|
% Chemical composition
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Al2O3%
|
95
|
≥92
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65 ~75
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60~70
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|
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%
|
1.9
|
2.53
|
5
|
10
|
|
Bulk Density（g/cm3）
|
3.68
|
3.65
|
2.93-3.0
|
2.80~2.90
|
|
Water Absorption%
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<0.005
|
<0.01
|
<0.01
|
<0.05
|
|
Moh'Hardness
|
9
|
9
|
≥8
|
≥8
|
|
（MPA）Compression Strength
|
2100
|
>2000
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>1000
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>1000
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Abrasion%
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0.0084
|
0.01
|
0.011
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<0.08
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|
Colors
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White
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White
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Yellow、White
|
Brown
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Raw Materials
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Calcined Alumina
|
Calcined Alumina
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Refined Bauxite Powder
|
Bauxite Power
|
|
Forming method
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Isostatic Pressing
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Isostatic Pressing
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Impact Briquetting
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Handmade
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