Overview:
Alumina grinding balls due to its high content of alumina, high- density, high hardness, high wear resistance is widely used in ceramics, enamel, glass and chemical plant after a hard material grinding and segmentation of different types.
Advantages:
1). High wear resistance:
Alumina grinding ball better wear resistance than ordinary balls. When grinding balls running time. It does not produce pollution, so it can maintain a high purity and the effect of improving the stability of the polishing.
2). High density:
High hardness and high grinding characteristics, thereby saving grinding time, grinding the expansion space, can effectively improve the grinding effect.
Deliver time: Within 10-15 days after receive payment.
Packing: Woven Bag
Price: The prices is different in different specifications,between USD 170 and USD 1700
The following is Alumina Grinding Ball's packing:
Appearance requirements:
Alumina grinding balls due to its high content of alumina, high- density, high hardness, high wear resistance is widely used in ceramics, enamel, glass and chemical plant after a hard material grinding and segmentation of different types.
Advantages:
1). High wear resistance:
Alumina grinding ball better wear resistance than ordinary balls. When grinding balls running time. It does not produce pollution, so it can maintain a high purity and the effect of improving the stability of the polishing.
2). High density:
High hardness and high grinding characteristics, thereby saving grinding time, grinding the expansion space, can effectively improve the grinding effect.
Deliver time: Within 10-15 days after receive payment.
Packing: Woven Bag
Price: The prices is different in different specifications,between USD 170 and USD 1700
The following is Alumina Grinding Ball's packing:
Indicators |
Alumina grinding balls |
Aluminum grinding balls |
Silicon carbide grinding balls |
||
Chemical composition |
Al 2 O 3 ( % ) |
95 |
≥92 |
65-75 |
60-70 |
SiO 2 ( % ) |
3 |
3.81 |
30-15 |
20-15 |
|
Fe 2 O 3 ( % ) |
0.05 |
0.06 |
0.41 |
<0.5 |
|
Ti0 2 ( % ) |
0.04 |
0.02 |
1.7 |
1.8 |
|
Other ( % ) |
1.9 |
2.53 |
5 |
10 |
|
The bulk density ( g/ cm 3 ) |
3.68 |
3.65 |
2.93-3.00 |
2.80-2.90 |
|
Water absorption ( % ) |
<0.005 |
<0.01 |
<0.01 |
<0.05 |
|
Mohs hardness ( Grade ) |
9 |
9 |
≥8 |
≥8 |
|
Compressive strength ( Mpa ) |
2100 |
>2000 |
>1000 |
>1000 |
|
The wear rate ( % ) |
0.0084 |
0.01 |
0.011 |
< 0.08 |
|
Forming method |
Balanced compressive |
Balanced compressive |
Extruding into chunks |
Knock off production |
Appearance requirements:
|
Alumina grinding balls |
Aluminum grinding balls |
Silicon carbide grinding balls |
Color |
White |
White |
Gray and black |
Cracking |
Not allowed |
Not allowed |
Not allowed |
Magazine |
Not allowed |
Not allowed |
Not allowed |
Cell |
Φ1mm above is not allowed , Φ0.5mm within the allowed 3 / ball |
||
Defects |
The maximum allowable size of 0.3mm 3 / ball |