Jinan Zhongwei Casting And Forging Grinding Ball Co.,Ltd
| Supply Ability | 50000 tons/year |
| Delivery Time | 7-14 days |
| Packaging Details | container bags or steel drums |
| Breakage Guarantee | no break |
| Heat treatment | oil quenching |
| Quality system authentication | ISO9001:2008/SGS TEST REPORT |
| HRC | 58-64 |
| Name | casting steel grinding balls |
| CR | Cr:16 |
| Brand Name | ZW |
| Model Number | GB/T 17445-2009 |
| Certification | ISO9001:2008 SGS |
| Place of Origin | CHINA |
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Product Specification
| Supply Ability | 50000 tons/year | Delivery Time | 7-14 days |
| Packaging Details | container bags or steel drums | Breakage Guarantee | no break |
| Heat treatment | oil quenching | Quality system authentication | ISO9001:2008/SGS TEST REPORT |
| HRC | 58-64 | Name | casting steel grinding balls |
| CR | Cr:16 | Brand Name | ZW |
| Model Number | GB/T 17445-2009 | Certification | ISO9001:2008 SGS |
| Place of Origin | CHINA | ||
| High Light | HRC64 Cast Iron Ball ，Unbreakable Cast Iron Ball | ||
Unbreakable Cast Grinding Media High Quality Cast Iron Balls For Mine
Process features of cast iron balls:
Moulding process---pouing when the molten iron temoerature reaches 1500 C,using the teoperature difference between moletn iron and the molds.in this way,the ball can achieve internal organization of grain refinement and be moredense.menanwhile,the carvide is radially arranged .and such carbide is embedded in the matrix again during grinding process,forming hatd layer continously,so that the hardness and toughness is maintained to a reasonable range,greatly improving the toughness and hardness of the grinding balls.
Specifications of our products as follows:
Type and Chenical Composition of Cast Balls
| | | Chemical Composition | ||||||
| C | Si | Mn | S/P | Cr | HRC | |||
| Cast ball | special hi-cr | 2.0-3.2 | ＜1.0 | 0.5-2.0 | ＜0.06 | ＞18 | 58-64 | |
| higt-cr | 2.0-3.2 | ＜1.0 | 0.5-1.5 | ＜0.06 | ＞10 | 58-62 | ||
| | 2.0-3.2 | ＜1.0 | 0.5-1.5 | ＜0.06 | ≥5 | 45-48 | ||
| | 2.2-3.4 | ≤1.2 | 0.5-1.5 | ≤0.06 | 1.0-1.5 | 42-46 | ||
Physical property of cast iron balls
| Name
| Material | Impact test AK.j/cm^2 | Endurance test times | HRC | Breakage |
|
Cast ball
| special hi-cr | ≥4 | ≥10000 | 58-64 | ＜1% |
| higt-cr | ≥3 | ≥10000 | 58-62 | ＜1% | |
| medium-cr | ≥3 | ≥8000 | 45-48 | ＜1% | |
| low-cr | ≥2 | ≥8000 | 42-46 | ＜1% |
5.Package: Steel drums (850kg per drum) or Flexible Container Bags ( 1000kg per bag)
| Container Bag | Steel Drum | |
| Net weight 1000kgs for all size balls | Ball Size | Net Weight |
| 20-30mm | 930-1000kgs | |
| 40-60mm | 900-930kgs | |
| 70-90mm | 830-880kgs | |
| 100mm and above | 830-850kgs | |
| Bag: 73×60cm, 1.5kg, 0.252CBM Drum: 60×90cm, 15-20kg, 0.325CBM Pallet: Single: 60×60×9cm, 4-6kg; Double:120×60×10cm,12-14kg | ||
.Electric furnace smelting:All cast steel balls are produced by intermediate frequency electric furance .The purity and stability of materials are effectively esured after unform temerature conditioning and twice hot metal purificati0n.
.Assay before furnace :Temperature control is an important and complex process during cast steel ball production.Different tapping temperature and heat temperature are sensitively reflected in the quality of the products.It is requested to master the proper pouring temperature ,mold temperature ,so that can make sure the products achieve a good state of body tisssue during the transition from Liquid to solid states.
Company Details
Business Type:
Manufacturer
Year Established:
2000
Employee Number:
100~120
Ecer Certification：
Verified Supplier
Established in 2000, We Jinan Zhongwei casting and forging grinding ball Co.,Ltd, are leading manufacturer and professional exporter of grinding media balls in China. with the annual output of 50,000 to 70,000 metric tons. Our products grinding media balls are mainly exported to more than 20 countri... Established in 2000, We Jinan Zhongwei casting and forging grinding ball Co.,Ltd, are leading manufacturer and professional exporter of grinding media balls in China. with the annual output of 50,000 to 70,000 metric tons. Our products grinding media balls are mainly exported to more than 20 countri...
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