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

Φ17Φ20Φ25

Φ30Φ40Φ50

Φ60Φ70Φ80Φ90

Φ100Φ110Φ120Φ130

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. 

Item

Chemical Composition(%)

C

Si

Mn

Cr

P

S

Mo

Cu

Ni

High chrome cast grinding balls 

ZQCr12

2.0-3.0

0.3-1.2

0.2-1.0

11-13

≤0.10

≤0.10

0-1.0

0-1.0

0-1.5

ZQCr15

2.0-3.0

0.3-1.2

0.2-1.0

14-17

≤0.10

≤0.10

0-1.0

0-1.0

0-1.5

ZQCr20

2.0-2.8

0.3-1.0

0.2-1.0

18-22

≤0.10

≤0.08

0-2.5

0-2.0

0-1.5

ZQCr26

2.0-2.8

0.3-1.0

0.2-1.0

22-28

≤0.10

≤0.08

0-2.5

0-2.0

0-1.5

Middle chrome cast grinding balls 

ZQCr7

2.0-3.2

0.3-1.5

0.2-1.0

6.0-10

≤0.10

≤0.08

0-1.0

0-0.8

0-1.5

Low chrome cast grinding balls 

ZQCr2

2.0-3.6

0.3-1.5

0.2-1.0

1.0-3.0

≤0.10

≤0.08

0-1.0

0-0.8

--

Bainite ductile cast grinding balls 

ZQsi3

3.2-3.8

2.0-3.5

2.0-3.0

--

≤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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