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| Alumina ceramic ball, corundum ball |
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 Alumina ceramic ball, corundum ball For the alumina (corundum) abrading ball, there are such lots of merits as, higher density, mechanical strength, well abrasive resistance etc. It is broadly applied to the areas of ceramic production, ball abrasive machine, electronics, aerospace, chemical fertilizer, and chemical industry. |
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Physical performance
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Chemical composition
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Item
|
Unit
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Technical index
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Composition
|
Index
|
|
Bulk density
|
kg/m3
|
2.9-3.6
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AL2O3
|
70-99%
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Crushing strength
|
KN/pc
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10-15
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SiO2
|
3-17%
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Hardness
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Mohs
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=7-9
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MgO
|
0.5%
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Abrasion ratio
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?/P>
|
0.03
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Fe2O3
|
0.03%
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Water sorption
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%
|
<0.05
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CaO
|
0.2%
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|
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Na2O
|
0.1%
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Other
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Micro quantity
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