Shandong Jinchi Heavy Industry Joint-stock Co.,LTDis made of a fluid melt into a mold, so that the shape of the sphere is cooled, the four main elements are required in the casting process: pattern, mold, core, and part of the original template, created from the corresponding cavity in the casting material. The core is used to manufacture a pipe or hole in the final mold, which is the final output of the process. Casting can be used to form heat, liquid metal. The abrasive medium is subjected to heat treatment to achieve the combination of hardness, toughness and microstructure required to ensure the wear resistance and toughness of the composite.


（MECHANICAL PROPERTIES）


Items  Brand（HRC）Surface hardness Endurance impact test(Times)
 Quenched Unquenched
 High chrome casting iron ball JCCr20  ≥56  ≥45  ≥8000 
 High chrome casting iron ball JCCr15  ≥56  ≥45  ≥8000 
 High chrome casting iron ball JCCr13  ≥56  ≥49  ≥8000 
 Middlechrome casting iron ball  JCCr7  ----  ≥48  ≥8000 
 Low chrome casting iron ball JCCr2  -----  ≥45  ≥8000 
 Bainite ductile casting iron ball JCsi3 ≥50 ----- ≥8000


Product performance: 1) the hardness of 2) is not broken 3) the impact value of 4) the impact of high 5) the comprehensive efficiency of the mill is high.


（SIZES OF CASTING BALLS ）


Items  SZES
Φ17Φ20Φ25Φ30Φ40Φ50Φ60Φ70Φ80Φ90Φ100Φ110Φ120Φ130
Tolerance +1.0 -1.0+2.0-1.0+3.0-10.+3.5-1.5
 Difference between maxDiam and min diam ≤ 1.0  ≤ 2.0  ≤ 3.0  ≤ 4.0 


 High Chrome Casting Grinding Ball. 

ItemChemical Composition(%)
CSiMnCrPSMoCuNi
High chrome cast grinding balls ZQCr122.0-3.00.3-1.20.2-1.011-13≤0.10≤0.100-1.00-1.00-1.5
ZQCr152.0-3.00.3-1.20.2-1.014-17≤0.10≤0.100-1.00-1.00-1.5
ZQCr202.0-2.80.3-1.00.2-1.018-22≤0.10≤0.080-2.50-2.00-1.5
ZQCr262.0-2.80.3-1.00.2-1.022-28≤0.10≤0.080-2.50-2.00-1.5
Middle chrome cast grinding balls ZQCr72.0-3.20.3-1.50.2-1.06.0-10≤0.10≤0.080-1.00-0.80-1.5
Low chrome cast grinding balls ZQCr22.0-3.60.3-1.50.2-1.01.0-3.0≤0.10≤0.080-1.00-0.8--
Bainite ductile cast grinding balls ZQsi33.2-3.82.0-3.52.0-3.0--≤0.10≤0.08------



Application areas: cement building materials, mining and metallurgy, coal chemical industry, coal chemical machinery and other industries.

Packing: ton bag (1000KG) (850-900KG).


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