Grinding Balls
Physical Properties:
Grinding Balls are suitable for grinding medium used in ball grinding machines.
High alumina ceramic balls are made by dry isostatic press and sintered at high temperature by micro fine Al2O3 powder. The compact and homogenous microstructure is free from air pockets and has better wear resistance. It is an ideal grinding media filled in a larger ball mills.
Typical Characteristics:
| Product | Al2O3(%) | Bulk density (g/cm3) | Water absorption( %) | Moh's Hardness(scale) | Abrasion loss(%) |
| High Alumina Grinding Balls | 92 |
3.65 |
<0.01 |
9 |
0.011 |
95 |
3.68 |
<0.005 |
9 |
0.0084 |
|
| Medium Alumina Grinding Balls | 65 - 75 |
2.93 |
<0.01 |
8 |
<0.01 |
| Carbonized Alumina Grinding Balls | 60 - 70 |
2.8 - 2.9 |
< 0.05 |
8 |
<0.08 |
Appearance Demand:
| High Alumina Grinding Balls | Medium Alumina Grinding Balls | Carbonized Alumina Grinding Balls | |
| Color | white | white | Ash-black |
| Crack | Not Permission | Not Permission | Not Permission |
| lmpurity | Not Permission | Not Permission | Not Permission |
| Foam hole | Above ф 1mm not permission,size in ф0.5mm permit 3 balls | ||
| Flaw | Max.size in ф0.3mm permit 3 balls | ||
Advantage
High wear-resistance:
The alumina balls' wear-resistance is higher than the common alumina balls'. When it is working, the ball won't pollute the grinding materials, so it can keep the purity and improve the stability of grinded materials especially the ceramic glaze
High density
The high density, high hardness and the high grinding characters save the grinding time, enlarge the smashing room. So it can improve the grinding efficiency.
