Forged Steel Grinding Ball in Good Condition with Well Abrasive Rwsistance apply for Cement

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25T m.t.
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200000T/Year m.t./month
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Feature of Forged Steel Grinding Ball in Good Condition with Well Abrasive Resistance apply for Cement

1) grinding steel ball has high hardness: surface hardness to 58-65 HRC, volume hardness of 56-65 HRC 

2) impact toughness high: impact toughness more than 12 J / cm2

3) broken rate is low: the actual broken rate is not higher than 0.5%. 

4) loss of grinding forged steel ball round rate is low. 

 

Applied fields of Forged Steel Grinding Ball in Good Condition with Well Abrasive Resistance apply for Cement

1) Metal Mines, 2) Cement plants, 3) Water coal slurry, 4) Power stations 5) Chemical industry

 

Chemical Elements of Forged Steel Grinding Ball in Good Condition with Well Abrasive Resistance apply for Cement

Material

C

Mn

Si

Cr

S

P

V

50MN

0.48-0.56

0.70-1.0

0.17-0.37

≤0.25

≤0.035

≤0.035

60MN

0.57-0.65

0.70-1.0

0.17-0.37

≤0.25

≤0.035

≤0.035

65MN

0.60-0.70

0.90-1.20

0.17-0.37

≤0.25

≤0.035

≤0.035

75Mn

0.72-0.92

0.17-0.37

0.17-0.37

0.4-0.6

≤0.035

≤0.035

75MnCr

0.70-0.85

0.7-0.8

0.17-0.37

0.2-0.7

≤0.03

≤0.03

75SiMn

0.70-0.90

0.7-1.2

0.4-0.8

≤0.25

≤0.03

≤0.03

Wear-resistant Alloy

0.5-0.65

0.4-1.0

1.4-1.8

0.9-1.2

≤0.03

≤0.03

0.1-0.2

 

Material

C

Si

Cr

Mn

S

P

Cr-22-32%

2.0-2.8

≤1.0

22-32

0.5-2.0

≤0.06

≤0.08

Cr-17-22%

2.0-2.8

≤1.0

17-22

0.5-2.0

≤0.06

≤0.08

Cr-15-17%

2.2-3.0

≤1.0

15-17

0.5-2.0

≤0.06

≤0.08

Cr-11-14%

2.2-3.2

≤1.0

11-14

0.5-2.5

≤0.06

≤0.08

Cr-5-10%

2.1-3.2

≤1.2

5-10

0.5-1.5

≤0.06

≤0.08

Cr-1.5-3%

2.2-3.5

≤1.2

1.5-3

0.5-1.5

≤0.06

≤0.08

 

Q:Would you please tell me how to use casting parts for a year?The cast of an aircraft wing needs to be put aside for a year before it breaks;Does anyone know why?
3, the resonance method is cast on its resonant frequency vibration 1060ndn, to eliminate the residual stress in casting.
Q:What should I pay attention to when designing a casting structure?
1 of the casting in metal mold cooling was faster than sand, metal type and let, thus casting in metal mold casting, casting stress generated in the ratio of sand casting to crack tendency is also large, but also prone to misrun and cold lap, white (for casting casting). Defect. Usually: (1) in the prevention of metal casting casting crack aspect should pay attention to the following problems: the structure of A in wall thickness, wall transition and connection to the ease, corner fillet appropriate requirements such as should be more strict than sand casting; B should be connected vertically connected with the wall to tilt C; for the weak parts of the structure should be set to strengthen ribs, bosses, to prevent casting; D should minimize the obstacle free shrinkage of the boss, casting rib, flange and other prominent part; E in the casting arrangement of ribs, but also should consider its influence on the casting shrinkage.
Q:What kind of casting process is used for cast iron parts? And what are the cast steel parts adopted?
Corundum sand: the main mineral composition is corundum alpha -Al2O3, used for investment casting, ceramic mold casting shell materials. The olivine sand: the main mineral composition of olivine (MgFe) 2SiO4, used in cast iron, non-ferrous alloy castings and high manganese steel casting molding sand and the core sand. Silica resources in nature resources, but suitable for casting with high SiO2 content of natural silica sand is not too much. Since 1951, China has carried out a general survey of the casting sand resources in the territory, but mainly limited to the main traffic lines and major industrial cities. Survey results show that Chinese can be used for natural silica sand casting is very rich in resources, a wide range of distribution. Inner Mongolia Zhelimumeng, natural silica sand reserves amounted to hundreds of millions of tons, the particle shape close to the circular, the content of SiO2 is about 90%. Fujian, Jinjiang Dongshan sea sand, the content of SiO2 is 94 to 98%, with a low volume of mud, are good natural silica sand. Are Duchang, Yongxiu Jiangxi County Xingzi, a large number of Quaternary lacustrine deposition of silica sand, the content of SiO2 is about 90%, low iron content, alkaline oxide less, uniform size, is a good lake sand. Guangzhou, Hunan and other places have abundant easily broken weathered sandstone, processing artificial silica sand, the content of SiO2 in more than 96%, can be used for the production of steel castings. Jiangsu Nanjing red sand, sandy mud pure, moderate, strong permeability, good viscosity, high silica content, less water, fine particles, pulls out the casting is smooth, stable quality, can be made of cast iron and non-ferrous metal parts of the sand and core sand
Q:Casting parts by shot blasting, spray painting, baking after the formation of very small rust spots, how to solve ah?
The first process is very important. Shot blasting must be thorough. The solution is to wipe the surface of the paint with a release. Re shot
Q:Which master knows how the casting tolerances for malleable iron, gray iron and ductile iron should be chosen? Hurry up, thank youCan you provide a tolerance scale for castings, please?
The tolerance of a specific size can be obtained from the tolerance grade and nominal size of the casting.
Q:My parts complex, machining costs are relatively high, so want to cast, but the surface needs anodizing, what material will be better?
Yes, the cast aluminium is polarized and gray, but the key problem is to guarantee the quality of the aluminium casting, and the quality of the other aluminium casting is not good.
Q:There is a little trace of polishingShock polishing is even worseElectrolysis can not be uneven, there is a slight bump
German winter three step mirror polishing 2013 new processYou can free proofing!
Q:Casting blank in the cooling process to release a large amount of heat energy, what can be recycled?
Casting, do not need to provide a rough casting foundry drawings, according to your chart will put foot margin in the processing needs of the surface, the rest of the size can be found according to the mechanical design manual and manual casting.
Q:For example, casting parts contain many holes, inclusions and other defects, the size and the number of holes exceed which limit is not qualified
According to different casting process and parts materials, each has relevant standards, can be found online;
Q:What is the difference between forging parts and casting parts?
The forging can guarantee the continuity of the metal fiber tissue, make the fiber structure of the forging keep the same shape as the forging, the metal streamline is complete, the tissue is compact, and the mechanical property is good. To ensure that the object has good mechanical properties and long service life, the processing of objects sharp, durable, high strength, first-class quality.
CMD is one of the largest manufacturers and professional exporters of forged grinding balls and cast grinding balls in China, with an annual output of 50,000 tons. Now, there are 180 employees in our company, with an area of 20,000 square meters. Our products are mainly exported to more than 20 countries in the world, such as Africa, South America, Asia, and Australia. 

1. Manufacturer Overview

Location Shandong, China
Year Established 1983
Annual Output Value Above US$100 Million
Main Markets South Asia, South Asia, Central America, Western Europe, Eastern Asia, Mid East, Oceania, Africa
Company Certifications ISO9001;IS014001 Certificate

2. Manufacturer Certificates

a) Certification Name  
Range  
Reference  
Validity Period  

3. Manufacturer Capability

a)Trade Capacity  
Nearest Port Qingdao Port
Export Percentage
No.of Employees in Trade Department 3-5 People
Language Spoken: English;Chinese;Japanese;Korean
b)Factory Information  
Factory Size: Above 20,000 square meters
No. of Production Lines 8
Contract Manufacturing Grinding steel balls;Grinding steel cylpebs;Grinding media;Grinding meida ball
Product Price Range Average

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