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

High Chromium Cast Alloyed Grinding Ball for Power Plant and Mineral Processing System 1

High Chromium Cast Alloyed Grinding Ball for Power Plant and Mineral Processing System 2

High Chromium Cast Alloyed Grinding Ball for Power Plant and Mineral Processing System 3

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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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	≤820g/MT
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

Q:In theory, which is more expensive, forging parts or casting parts?: It depends on the structure. In theory, the shape of the forging is relatively simple, but the requirement of internal structure is relatively high

Q:What are the requirements for casting steel castings?: 4 thickness, most should be placed above the.5 and try to reduce the number of.6, the sand core should be used in classification of flat surface

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?: 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: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:In the design of casting steps and precautions, for casting design, we have what experience?.: Two: the basic structure unit in the design of metal casting type and the parameters selected, usually should also pay attention to: (1) because of the metal type heat quickly, so the metal type casting minimum wall thickness should be bigger than the sand casting, metal type casting alloy minimum wall, different size of castings see table 1.1-31 thick can be selected; (2) the inner wall of the casting internal ribs and the thickness of wall thickness should be 0.6-0.7 connected, or as the inner wall (rib) cold slowly, cracks in the wall at the junction in the casting shrinkage;

Q:the parts of the threaded hole is casting, casting the hole directly, and then tapping or casting, and then punch 10When the casting is ready, punch it again before tapping it Is the hole casting good or is it punched and tapped on the drilling machine after casting?: If it is not directly cast hole hole, later processing, large pores may be directly cast out,

Q:What is the ejection angle of the die casting (Tan Gang)?: Because after the wax, wax parts will have a slight contraction, which is good for demoulding. Many moulds don't do the ejection angleEspecially deep hole, and customers to discuss, generally take 0.3-1 degrees is enough

Q:Where is the precision casting factory?: Everywhere is. Look what you want to do

Q:What's the effect of casting copper?: In general cast iron, the mass fraction of copper below 3% - 3.5% can increase the hardness; but when the cast iron has a tendency to chill, or when there is a hard point of free carbides, the addition of copper decreases the hardness.Copper can be used to improve the wear resistance, abrasion resistance, and shock absorption of cast iron, so it is often used in the manufacture of sliding friction iron castings, such as drilling machine spindle, automobile and tractor, valve tappet, etc.. But in white cast iron or chilled cast iron, adding copper does not make any improvement in its abrasion resistance.Copper for certain heat resistant cast iron and austenitic cast iron can increase the heat resistance and corrosion resistance, copper - chromium composite alloy to prevent oxidation under high temperature in the atmosphere from the skin effect is particularly effective, heat resistance and corrosion resistance of austenitic cast iron containing many mass fraction of 4% ~ 7% copper.

Q:As shown, how do I achieve the tightness test of this product, and achieve industrial production? Seek expert advice.: Precise and tight sealing of the surface to which the test piece is to be tested, equipped with an airtight test instrument, and an electrical control system. You can complete automated testing equipment

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