Ball Mill Chromium Alloyed Grinding Ball made in China with Top Quality and Highest Hardness

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Qingdao
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TT or LC
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25M.T. m.t.
Supply Capability:
200000M.T./Year m.t./month

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Product Description:

1. Feature of Ball Mill Chromium Alloyed Grinding Ball made in China with Top Quality and Highest Hardness

1) In general, 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. 

 

2. Index analysis of Ball Mill Chromium Alloyed Grinding Ball made in China with Top Quality and Highest Hardness

Product

Brand

DIA

hardness

Breakage ratio of ball

Impact fatigue life of ball

Numbers time

Metallographic organization

Special high chrome casting iron ball

Cr26

15-150MM

58

0.5%

6

15000

M+C

Special high chrome casting iron ball

Cr20

15-150MM

58

0.5%

6

15000

M+C

Special high chrome casting iron ball

Cr15

15-150MM

58

0.5%

5

15000

M+C

High chrome casting iron ball

Cr12

15-150MM

58

0.5%

4

15000

M+C

High chrome casting iron ball

Cr8

15-150MM

58

0.5%

3

15000

M+C

Middle chrome casting iron ball

Cr5

15-150MM

47

0.5%

2

12000

P+C

Low chrome casting iron ball

Cr2

15-150MM

45

0.5%

1

12000

P+C

Casting ball

QTB

15-150MM

50

0.5%

-

12000

-

Casting ball

QTM

15-150MM

52

0.5%

-

12000

-

 

3. Chemical Composition of Ball Mill Chromium Alloyed Grinding Ball made in China with Top Quality and Highest Hardness

Product

Brand

Chemical composition(%)

C

Si

Mn

Cr

Mo

Cu

Ni

P

S

Special high chrome casting iron ball

Cr26

2.0-3.3

1.2

0.3-1.5

>23.0-30.0

0-3.0

0-1.2

0-1.5

0.10

0.06

Special high chrome casting iron ball

Cr20

2.0-3.3

1.2

0.3-1.5

>18.0-23.0

0-3.0

0-1.2

0-1.5

0.10

0.06

Special high chrome casting iron ball

Cr15

2.0-3.3

1.2

0.3-1.5

>14.0-18.0

0-3.0

0-1.2

0-1.5

0.10

0.06

High chrome casting iron ball

Cr12

2.0-3.3

1.2

0.3-1.5

>10.0-14.0

0-3.0

0-1.2

0-1.5

0.10

0.06

High chrome casting iron ball

Cr8

2.1-3.3

2.2

0.3-1.5

7.0-10.0

0-1.0

0-0.8

-

0.10

0.06

Middle chrome casting iron ball

Cr5

2.1-3.3

1.5

0.3-1.5

4.0-6.0

0-1.0

0-0.8

-

0.10

0.10

Low chrome casting iron ball

Cr2

2.1-3.6

1.5

0.3-1.5

1.0-3.0

0-1.0

0-0.8

-

0.10

0.10

Casting ball

QTB

3.2-3.8

2.0-3.5

2.0-3.0

-

-

-

-

0.10

0.03

Casting ball

QTM

3.2-3.8

2.0-3.5

2.0-3.0

-

-

-

-

0.10

0.03

 

 

 

 

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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.
Q:Casting pieces of plastic processing requirements can not fall off the skin,
Cast iron has not been done, if it is iron, then in the spray before going through strict pretreatment, the surface can not have a little oil dust
Q:Casting parts, anodizing 20
The common material that can be anodized is aluminum alloy. It is recommended to use casting aluminum alloys, such as ZL102 and ZL105, which are commonly used as cast aluminium alloys. The processing of aluminum casting is easy. After processing, the surface of the whole part can be anodized. The color can be chosen.
Q:How can the casting be plated with ordinary zinc plating? The coating is too thin and requires 0.08 thickness
Hot galvanizing doesn't seem to workThe zinc layer is 275g/ square meters of material coating is 0.019mm (mm), up to 0.08 thick.
Q:What's the density of casting?
Uneven casting density is caused by uneven shrinkage of the casting during solidification.
Q:How do casting parts remove stress?
Annealing treatment, according to different casting annealing treatment, eliminate thermal stress, if need to restore hardness or increase hardness, and then quenching treatment
Q:The difference between cement sand castings, resin sand castings and vacuum casting parts
Our country or international, in all casting production in 60 ~ 70% by sand casting is produced, of which about 70% is used in the production of clay sand. The main reason is that the cost of sand casting is low compared with other casting method, simple production process and short production cycle. So as the car engine cylinder body the cylinder head, crankshaft castings are produced using clay wet sand molding process. When the wet type can not meet the requirement to consider the use of clay sand table dry sand, dry sand mold or other sand.
Q:Does anyone know how to make precise casting parts for aerospace or manufacturers of single and small quantities of automotive parts and components, mainly in Beijing, Tianjin and Tangshan?
List of China's military enterprises list of ten major military groupsChina Nuclear Industry Construction Group CorporationChina Aerospace Science and Technology CorporationChina Aerospace Science and Engineering CorporationChina Aviation Industry CorporationChina Aviation Industry Corporation IiChina State Shipbuilding CorporationcsicChina North Industries Group CorporationChina South Industries Group CorporationChina National Nuclear CorporationKey military enterprisesShipbuilding industry:China State Shipbuilding Corporation (South ship group), (China Shipping Group)China Shipbuilding Industry Corp (North Ship group), (China Shipbuilding Industry)Guangzhou Shipyard International Limited by Share Ltd (GSI)Jiangnan Heavy Industry Limited by Share Ltd (Jiangnan Heavy Industry)Nuclear industry:China National Nuclear Corporation (CNNC)China Nuclear Industry Construction Group Corporation
Q:We are small castings, the need for surface treatment of shot blasting machine, about how much?
The choice of shot blasting machine, this is according to the workpiece size, yield, whether can collision, and the working time and other factors considered, while the price of different blasting machine are not the same, but the vast majority of small castings used crawler shot blasting machine,
Q:Explain the heat treatment effect of casting parts, forging parts and welding parts
Good welding of low carbon steel (alloy), probably because the weld workpiece rigidity, fast cooling, the weld internal crystallization of brittle microstructure (martensite), so after welding or welding process welding using self heat, reasonable arrangement of weld, welding seam and heat affected zone heat treatment. The welding heat treatment is often used to preheat before welding, after welding withasbestos cloth covering slow cooling annealing, reach the purpose, its main function is to reduce the internal stress, improve the weld microstructure of martensite formation, reduce brittle tendency, preventing welding cracks.
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