The spheres steel grinding, grinding bodies for mills
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Description
Spheres steel grinding
Spheres steel grinding are made by method of hot rolling in screw calibers according to GOST 7524-89 and are intended for crushing of raw materials and materials in mills of drum type at the enterprises mining and processing, cement, fire-resistant, power and other industries.
At the moment on our production the first line of rolling of the steel grinding spheres with a diameter from 18 to 40 mm is put into operation.
The main standard sizes and groups of hardness of the let-out spheres:
| № payment order |
Main standard sizes and their nominal diameters, mm |
Maximum deviations on nominal diameter, mm |
Groups of hardness |
| 1 | 18 | ±1,0 | 1,2,3,4 |
| 2 | 20 | ||
| 3 | 25 | ||
| 4 | 30 | ±2,0 | |
| 5 | 35 | ||
| 6 | 40 |
Distinctive features of spheres of our production are:
- The increased wear resistance to attrition;
- High hardness;
- Lack of defects of metallurgical character;
- Uniform wear with preservation of a form of a sphere;
- Lack of a vykrashivayemost and splits.
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The spheres steel grinding, grinding bodies for mills