Description of the high chrome steel ball for grinding
1.Physical properties
| HRC | Impact value | Metallurgical structure | Falling times | Breakage rate |
| ≥60 | ≥3.5 | M+C | 20000 | ≤0.5% |
2.Chemical composition
| C | Si | Mn | Cr | P | S |
| 2.0-3.2 | ≤1.0 | ≤1.0 | 10-28 | ≤0.10 | ≤0.06 |
3.Picture of the cast grinding media high chrome steel ball
4.Production process
5.Workshop
6.Operation manual
Dongxu products are widely used in construction, chemical industry, mining industry, thermal energy and machinery
industry. In order to improve the using efficiency, please note the following details:
1.Our products should be used in a rational way according to gradation of mill and grinding media, and fill rate. Please
control the raw material particle size and proportion of raw material and grinding media.
2.Please do not switch on/off machine frequently and keep enough materials during operation. Operating without
material is prohibited, please fill in the mill with materials before changing new balls.
3. Please open the mill door to cool down the balls before pouring them out in case of bursting.
4. Please don't mix Dongxu products with other brands in the same compartment.
5. If there is any anomaly, please inform us as soon as possible. Please do not open the mill door until our service
team reaches.
7.Unique heat treatment process
Metallic materials consist of a microstructure of small crystals called "grains" or crystallites.
The nature of the grains (i.e. grain size and composition) is one of the most effective factors
that can determine the overall mechanical behavior of the metal. Heat treatment provides
an efficient way to manipulate the properties of the metal by controlling the rate of diffusion
and the rate of cooling within the microstructure. In the R & D practice, Dongfang invents
Application Method for Warm Period Timing Quenching in Grinding Materials Heat Treatment
and other skills. Machine oil is used to quench, making workpiece heated evenly, promoting
the first formed carbide decompose once again and then forming uniformly distributed reticular
carbides in the matrix. Hardness gap between center and surface is less than 1.5 HRC.
Shipment
1.Usually we choose to ship your order by sea.
2.We'll tell you the shipping status once your order has been sent.
Payment
We accept T/T, L/C.etc.
Package
We will pack your order by bulk bag or metal pail.
We look forward to the opportunity to serve you with the same philosophy and commitment to quality
which has become the foundation of our business.
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