Material: | Alumina |
---|---|
Content: | >90% |
Usage: | Grind |
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Item | High Alumina Grinding Ceramic Ball | Middle Alumina Grinding Ceramic Ball | |||
Micro-crystal middle-alumina | Carborundum middle alumina | ||||
99%AL 2 O 3 | 95%AL 2 O 3 | 92%AL 2 O 3 | 65-75%AL 2 O 3 | 60-70%AL 2 O 3 | |
AL 2 O 3 % | 99 | 95 | ≥ 92 | 65 ~75 | 60~70 |
SiO 2 % | 0.2 | 3 | 3.81 | 30~15 | 20~15 |
Fe 2 O 3 % | 0.05 | 0.05 | 0.06 | 0.41 | <0.5 |
TiO 2 % | 0.05 | 0.04 | 0.02 | 1.7 | 1.8 |
Others% | 0.7 | 1.9 | 2.53 | 5 | 10 |
Bulk Density(g/cm 3 ) | 3.7 | 3.68 | 3.65 | 2.93-3.0 | 2.80~2.90 |
Water Absorption % | <0.005 | <0.005 | <0.01 | <0.01 | <0.05 |
Mohs' Hardness(Grade) | 9 | 9 | 9 | ≥ 8 | ≥ 8 |
Compression Strength(MPA) | 2100 | 2100 | >2000 | >1000 | >1000 |
Abrasion% | 0.0084 | 0.0084 | 0.01 | 0.011 | <0.08 |
Colour | White | White | White | Yellow White | Brown |
Raw Materials | Calcined Alumina | Calcined Alumina | Calcined Alumina | Refined Bauxite Powder | Bauxite Powder |
Forming Method | Isostatic Pressing | Isostatic Pressing | Isostatic Pressing | Impact Briquetting | Handmade |