Alumina Grinding Ball used in ball mill
Technical Specification of Grinding Ball
|
Product |
Al2O3 % |
Bulk density g/cm2 |
Water absorption |
Mohs hardness scale |
Abrasion loss % |
Color |
|
|
High alumina grinding balls |
92 |
3.65 |
0.01 |
9 |
0.011 |
White |
|
|
Medium alumina grinding balls |
65-70 |
2.93 |
0.01 |
8 |
0.01 |
Yellow-White |
|
|
Appearance demand |
|||||||
|
High alumina grinding balls |
Medium alumina grinding balls |
||||||
|
Crack |
Not permission |
Not permission |
|||||
|
Impurity |
Not permission |
Not permission |
|||||
|
Foam hole |
Above 1mm not permission, size in 0.5mm permit 3 balls. |
||||||
|
Flaw |
Max. size in 0.3mm permit 3 balls. |
||||||
|
Advantage |
a) High alumina content |
||||||
|
Warranty |
a) By national standard HG/T 3683.1-2000 |
||||||
TYPE1:
Typical chemical compositions:
|
Items |
Proportion |
Items |
Proportion |
|
Al2O3 |
65-70% |
SiO2 |
30-15 |
|
Fe2O3 |
0.41 |
MgO |
0.10 |
|
CaO |
0.16 |
TiO2 |
1.71 |
|
K2O |
4.11 |
Na2O |
0.57 |
Products size data:
|
Spec.(mm) |
Volume(cm3) |
Weight(g/pc) |
|
Φ30 |
14 ± 1.5 |
43 ± 2 |
|
Φ40 |
25 ± 1.5 |
100 ± 2 |
|
Φ50 |
39 ± 2 |
193 ± 2 |
|
Φ60 |
58 ± 2 |
335 ± 2 |
TYPE 2:
Typical chemical compositions:
|
Items |
Proportion |
Items |
Proportion |
|
Al2O3 |
≥92% |
SiO2 |
3.81% |
|
Fe2O3 |
0.06% |
MgO |
0.80% |
|
CaO |
1.09% |
TiO2 |
0.02% |
|
K2O |
0.08% |
Na2O |
0.56% |
Specific properties:
|
Spec.(mm) |
Volume(cm3) |
Weight(g/pc) |
|
Φ30 |
14 ± 1.5 |
43 ± 2 |
|
Φ40 |
25 ± 1.5 |
126 ± 2 |
|
Φ50 |
39 ± 2 |
242 ± 2 |
|
Φ60 |
58 ± 2 |
407 ± 2 |
