High Chromium Cast Alloyed Grinding Ball for Power Plant and Mineral Processing

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Loading Port:
Qingdao
Payment Terms:
TT or LC
Min Order Qty:
25M.T. m.t.
Supply Capability:
200000M.T./Year m.t./month

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Product Description:

1.  Specification of High Chromium Cast Alloyed Grinding Ball for Power Plant and Mineral Processing

   1. Diameter: 20mm-150mm
   2. Grade: 22Cr, 17Cr, 15Cr, 11Cr, 5Cr, 1.5Cr, etc
   3. Chemical composition: C, Si, Mn, Cr, P, S, Mo, Cu, Ni, etc
   4. Surface treatment: burnt sand & smooth.
   5. It is free from hard spot, visible injurious defects such as blow hole,porosity,  shrinkage, cracks, cold-shuts.

2. Size of High Chromium Cast Alloyed Grinding Ball for Power Plant and Mineral Processing

Norminal Diameter

Theorial Diameter

Theorial Weight

Surface Hardness

Core Hardness

(mm)

(mm)

(kg/per piece)

(HRC)

(HRC)

20

20.8

0.037

62-65

62-65

25

28.0

0.072

30

31.2

0.125

35

36.4

0.198

62-65

61-64

40

41.6

0.296

45

46.8

0.421

50

52.0

0.578

55

57.2

0.769

60

62.4

0.999

65

67.6

1.270

60-63

59-62

70

72.8

1.586

75

78.0

1.951

80

83.2

2.367

85

87

2.5243

59-64

59-64

90

92

2.9964

95

97

3.5241

100

102

4.1103

105

107

4.7582

110

112

5.4710

115

118

6.2512

58-63

58-63

120

122

7.1026

125

127

8.0279

130

133

9.0303

58-63

57-63

135

138

10.1076

140

143

11.2728

145

148

12.5243

150

153

13.8651

3. Features of High Chromium Cast Alloyed Grinding Ball for Power Plant and Mineral Processing

Composition

(%)

C

Si

Mn

Cr

P

S

Hardness

(HRC)

Wear Rate in Gold Mine

Low Cr Cast Balls

2.0~3.0

0.5~1.5

≤0.50

1.5~2.5

≤0.07

≤0.07

46~55

About 1000g/MT

Mid Cr Cast Balls

2.0~3.5

≤1.0

0.3~1.2

4.0~6.0

≤0.10

≤0.10

≥50

About 870g/MT

Cr12 Cast Balls

2.0~3.0

≤1.2

0.7~2.0

10~12

≤0.06

≤0.06

≥55

≤820g/MT

Cr15 Cast Balls

2.0~3.0

≤1.2

0.7~2.0

14~16

≤0.06

≤0.06

≥58

Cr20 Cast Balls

2.0~3.5

≤1.0

0.5~1.5

17~23

≤0.06

≤0.06

≥60

≤760g/MT

High Chromium Cast Alloyed Grinding Ball for Power Plant and Mineral Processing

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Q:Casting parts need to be subjected to the kind of heat treatment after the weldment is finished
1, gray cast iron: General graphite annealing, to be heat treatment annealing, surface hardening etc.; ductile iron can be various: annealing, normalizing, quenching and isothermal quenching, surface treatment, chemical heat treatment.2. Pouring liquid metal into the casting cavity which adapts to the shape of parts. After cooling and solidification, the casting method is called casting. Castings obtained by casting are called castings. Casting structure design: ensure the working performance and mechanical performance requirements, consider the technical requirements and performance of alloy casting casting casting structure, casting structure design is reasonable or not, the casting quality, productivity and cost has a great influence.3. Heat treatment is a metal hot working process in which the material is in solid state by means of heating, heat preservation and cooling to obtain desired microstructure and properties
Q:What is normalizing, annealing, tempering, quenching? What is the difference between forging parts and casting parts?
According to the requirements of the workpiece annealing, there are many kinds of annealing process specifications, such as full annealing, spheroidizing annealing and stress relieving annealing. Steel the steel quenching is heated to the critical temperature Ac3 (hyposteel) or Ac1 (hypereutectoid steel) above a certain temperature, holding time, so that all or part of 1 Austenitic, then the cooling rate is greater than the critical cooling rate of fast cooling to below Ms (or near Ms isothermal) of martensite the body (or bainite transformation) heat treatment process. Aluminum alloys, copper alloys, titanium alloys, tempered glass and other materials are usually treated by solid solution or heat treatment with rapid cooling process. Tempering is a heat treatment process where the workpiece is hardened and heated to a temperature below AC1, which remains cool for a certain period of time and then cools to room temperature. Tempering generally followed by quenching, the purpose is: (a) to eliminate the residual stress caused by quenching, prevent deformation and cracking; (b) hardness, strength, plasticity and toughness of workpiece is adjusted, to use performance requirements; (c) the size of organization and stability, ensure the accuracy improvement; (D) and to improve the processing performance. Tempering is therefore the last important step in obtaining the desired properties of the workpiece. According to the tempering temperature range, tempering can be divided into low temperature tempering, medium temperature tempering and high temperature tempering. This answer is recommended by the questioner
Q:What reason is the bronze statue choking fire?
The casting process in boiling phenomenon, is the setting of the exhaust hole positioner position or number is not reasonable, the air cavity can not be discharged, overwhelmed by a material inlet, reflux, change mould, sincerely help you look forward to adopt,
Q:Casting parts, anodizing 20
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:What's the cause of the choking of the casting?,
3. when casting the environment is humid, sand mold has not removed the moisture, when the casting, the moisture instantaneous transforms into the steam, causes the blowhole
Q:Stainless steel mirror polishing precision casting parts is very difficult, 20
Buffing should be better, to see how your embryo, but a bit difficult
Q:Tolerance standard for casting parts
Our country has a national standard for casting tolerance levels. This national standard applies to you in malleable iron, grey cast iron, and ductile iron.
Q:When there is no flaw detection for large casting parts, is there any crack inside?
Cracks are considered serious levels of defects and should be repaired
Q:Cause of choking of casting parts
The reason is not in the coated sand, see coating gas evolution, the best use of zircon powder coating (low gas evolution), there is a mold according to a vent needle, this depends on your way is flat or vertical pouring pouring pouring, if vertical pouring, venting pin on the die, and the big piece how could the plane, pouring water flat, a breath, a taboo ah!
Q:How can the casting be free of trachoma?
Measures for the prevention of trachoma in castings:1, sand compaction to high, paint two times;
CDE is one of the largest factory specialized in producing Forged Grinding Balls and Cast Grinding Balls in China. Our annual production of grinding balls is about 100,000 ton. Our company has passed ISO9001: 2000 quality system authentication. We mainly export our grinding balls to Chile, Peru, Ghana, Argentina, Philippine, South-Africa, Italy, Japan, Korea, India, Australia etc more than 20 countries and areas.

1. Manufacturer Overview

Location Shandong, China
Year Established 1971
Annual Output Value US$50 Million - US$100 Million
Main Markets Domestic Market, Southeast Asia, South Asia, North America, South America
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 6-10 People
Language Spoken: English, Chinese, Korean
b)Factory Information  
Factory Size: Above 60,000 square meters
No. of Production Lines Above 10
Contract Manufacturing Forged Grinding Ball,Cast Grinding Ball,Casting Cylpebs,Grinding Rods,Decorative Steel Ball
Product Price Range Average