Introduction of the 20mm low chrome cast grinding balls
1.Mechanical character
HRC | Impact Value(j/cm²) | metallurgical structure | Falling Times |
≥45 | ≥2.0 | P+C | 8000 |
2.Chemical composition
C | Si | Mn | Cr | P | S |
2.2-3.5 | ≤1.2 | ≤0.3-1.5 | 0.8-2.2 | ≤0.1 | ≤0.1 |
3.Picture of the high-tech 20mm chromium alloy cast grinding balls
4.Heat treatment
Heat treatment is the key step of the whole production process.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.
Due to the unique heat treatment process, grinding medias obtain the required hardness and metallurgical
structure,and the hardness gap between core and surface is less than 1.5 HRC.
5. Products quenching
6.Package of metal pail
Shipment
1.Usually we ship your order by sea.
2.We'll tell you the shipping status once your order has been sent.
Payment
30% advanced payment, 70% before loading. We accept T/T, L/C.etc.
As a leading supplier,Ningguo Dongfang Wear-Resistant Material Co.,Ltd is a comprehensive
high-tech enterprise specialized in research, production, sales and service of grinding media.
Total assets is about 160 million RMB while production capability is more than 50,000t. And now
we sincerely hope that any customer who has interest on our products come to negotiate business
with us.
