Corundum and corundum-mullite AL2O3 ceramic balls are most suitable to be used as grinding media and drum lining of various grinding equipments because of its excellent properties such as high strength,high hardness,high abrasion resistance, high gravity, small size,high temperature resistance.
Application: It is mainly used for non-metal mineral products extra refining, it is ideal grinding media for stirring grinding, sand grinder and vibration grinding. And it is widely applied in ceramics, paint, ink coatings,dyes, rubber and power industries.
Performance:
1. High density and hardness, impact resistance, low loss rate, smooth surface and no contamination to products.
2. Fine chemical stability, anti-corrosion..
3.Under condition of appropriate ball size ration, it can achieve high grinding efficiency with material results D≤2μm.
4.High performance and low price.
Properties of Micro Crystal Wear-resistance Alumina Ball
|
Properties
|
WP-75
|
WP-85
|
WP-90
|
|
AL2O3 (%)
|
75
|
85
|
90
|
|
Fe2O3 (%)
|
≤0.35
|
≤0.30
|
≤0.25
|
|
Rockwell hardness(HRA)
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≥85
|
≥88
|
≥90
|
|
Water absorption (%)
|
≤0.02
|
≤0.02
|
≤0.02
|
|
Compressive strength
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≥1800
|
≥2000
|
≥2100
|
|
Bulk Density (g/cm3)
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≥3.2
|
≥3.65
|
≥3.65
|
|
Abrasion(%)
|
≤0.25
|
≤0.15
|
≤0.10
|