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[China]
Trade Verify
Address: Lejia,Puji Town,Zhangqiu Jinan city,Shandong Province,China
Contact name:Stevin Liu
Jinan Zhongwei Casting And Forging Grinding Ball Co.,Ltd |
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Verified Suppliers
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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.
