Copper Mine ues High Chromium Alloyed Grinding Ball made in Chian and in Top Quality

Copper Mine ues High Chromium Alloyed Grinding Ball made in Chian and in Top Quality System 1

Copper Mine ues High Chromium Alloyed Grinding Ball made in Chian and in Top Quality System 2

Copper Mine ues High Chromium Alloyed Grinding Ball made in Chian and in Top Quality System 3

Copper Mine ues High Chromium Alloyed Grinding Ball made in Chian and in Top Quality

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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. Feature of Copper Mine ues High Chromium Alloyed Grinding Ball made in Chian and in Top Quality

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 Copper Mine ues High Chromium Alloyed Grinding Ball made in Chian and in Top Quality

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 Copper Mine ues High Chromium Alloyed Grinding Ball made in Chian and in Top Quality

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

Copper Mine ues High Chromium Alloyed Grinding Ball made in Chian and in Top Quality

Q:Why do casting parts have air holes?: First, from the source, tools, raw material drying, in the process of melting into the reaction gas, another influence is pouring process, such as high temperature solidification gas dissolved too much after not excluded. The method can adjust the pouring temperature properly, control the source of gas (drying and controlling the inoculant, especially the content of magnesium), and add cooling iron to change the solidification mode. It depends on what kind of casting you are. You can't make it clear at once. And molding sand relationship is mainly water content and permeability, brush coating resin content.

Q:What are the requirements for casting steel castings?: 2, the plane should be placed on the following.3, thin parts should be placed below.

Q:How can the casting be plated with ordinary zinc plating? The coating is too thin and requires 0.08 thickness: Hot galvanizingGenerally 0.06 mm or more

Q:What are the casting parts used to test shrinkage holes?: 3 fluorescent magnetic powder, this method can also be found in part.

Q:How can the casting be free of trachoma?: 2, pouring temperature should be enough, otherwise the sand can not float up;

Q:How to calculate the price of casting parts?: Cost of raw materials + electricity (fuel) costs + workers' wages + managers' wages + transport costs + raw materials burned + accessories costs + equipment maintenance depreciation costs + management fees + tax. The most convenient, the raw material market price plus 2000 yuan, plus you want profits on the line.

Q:How much is the amount of electrophoretic paint per square meter used in the casting?: In general, when the final thickness of 15-20 microns, cathode electrophoresis paint can be coated per kilogram of 6-8 square meters, the current general cathode electrophoresis paint for the price of 22 yuan / kg, so the cathodic electrophoresis electrophoresis paint cost at 4 yuan / square meters.

Q:Casting parts need to be subjected to the kind of heat treatment after the weldment is finished: This is difficult to say, the key is to see the specific parts and components, the final mechanical performance requirements.For example, gray cast iron, usually graphite annealing, to heat treatment annealing, surface quenching and so on, ductile iron can be a variety of annealing, normalizing, quenching and isothermal quenching, surface treatment, chemical treatment and so on, in a word, heat treatment of steel can usually, nodular cast iron can do. Malleable cast iron and vermicular cast iron are often subjected to graphitization annealing and stress relieving annealing, while wear-resistant cast irons often undergo quenching + low temperature tempering, and so on.Welding is the case, such as bearing steel welding must be quenched + low temperature tempering, machine spindle welding (repair welding) must be quenched and tempered treatment, and so on. Of course, if it is a general weld, there is no need for heat treatment or, at most, stress relieving annealing.

Q:What do you mean by "proofing" in the casting? Do you charge for the proofing?: Proofing refers to making the first sample to confirm to the customer

Q:What's the cause of the choking of the casting?,: Causes of choking fire:1., casting material in the pouring of gas;

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