Wear-resistant High Chrome Cast Grinding Balls with High Hardness and Top Quality

Wear-resistant High Chrome Cast Grinding Balls with High Hardness and Top Quality System 1

Wear-resistant High Chrome Cast Grinding Balls with High Hardness and Top Quality System 2

Wear-resistant High Chrome Cast Grinding Balls with High Hardness and Top Quality System 3

Wear-resistant High Chrome Cast Grinding Balls with High Hardness and Top Quality

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Loading Port:: Qingdao Port

Payment Terms:: TT or LC

Min Order Qty:: 25M.T. m.t.

Supply Capability:: 200000M.T./Year m.t./month

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Features of Wear-resistant High Chrome Cast Grinding Balls with High Hardness and Top Quality

1) In general, casting grinding ball has high hardness: surface hardness to55-68 HRC, volume hardness of 53-63 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 1%;

4) loss of grinding forged steel ball round rate is 50-300g/ton

Physical Property of Wear-resistant High Chrome Cast Grinding Balls with High Hardness and Top Quality

Model	Hardness(HRC)		Impact Test(Ak.J/cm²)	Endurance Test Times(5m)	Microstructure
Model	Quenching	Unquenching	Impact Test(Ak.J/cm²)	Endurance Test Times(5m)	Microstructure
High Chrome	≥60	≥50	≥4	≥12000	M+C
Medium Chrome	-	≥48	≥3	≥10000	P+C
Low Chrome	-	≥46	≥2	≥8000	P+C

Specification of Wear-resistant High Chrome Cast Grinding Balls with High Hardness and Top Quality

Nominal Diameter		Diameter Tolerance	Weight of Single Ball In Average	Numbers of Per Ton Ball In Average
(mm)	(Inch)	(mm)	(g)
20	0.75’’	+2 -1	32	31250
25	1’’		64	15625
30	1.25”		110	9090
40	1.5’’		263	3802
50	2’’		513	1949
60	2.5’’	+3 -2	888	1126
70	2.75		1410	709
80	3.25’’		2104	475
90	3.5’’		2996	333
100	4’’		4110	243
110	4.5’’	+4 -2	5457	182
120	4.75’’		7102	140
130	5’’		9030	110
140	5.5’’	+4 -3	11278	88
150	6’’	+4 -3	13871	72

High chrome cast balls Size: 20mm-120mm

Hardness:HRC58-65; Chrome content:11-14%

Low chrome cast balls Size: 20mm-120mm

Hardness:HRC45-55; Chrome content:1-3.5%

Wear-resistant High Chrome Cast Grinding Balls with High Hardness and Top Quality

Q:Is the cast steel a casting part?: Cast steel is one of the casting parts that you call. The material is made of carbon steel or alloy steel, stainless steel, etc. the method is cast

Q:How to solve casting defect casting?: Prevention methodReduce the gas in the metal liquid and oxidize the slag, improve the fluidity of the metal liquidIncrease pouring temperature and pouring speed, strengthen slag collection, slag block or bottom pouring bag, teapot ladle pouring, can not cut off when pouring, prevent the slag from blocking the nozzle, and cause the casting to breakIncrease the sprue and sprue height, increase the runner section area and the sprue number, and improve the filling speed and the metal hydrostatic headImprove the casting design and increase the thickness of the thin-wall part of the castingChange the pouring position and pouring system, the casting thin wall plane is located at the top and away from the gate, to prevent the filling of liquid metal splashing, eddy current, avoid metal stream in the casting thin sections or core support, cold iron, insert the confluence, when necessary, take horizontal vertical pouring cold or inclined castingIncrease the permeability of core and sand, strengthen the exhaust of mould, and the quantity of air outlet and riser should be enoughChange the size and location of the core, the inner cold iron, the core support, the internal cold iron, the insert should be no rust, no oil pollutionCheck the type, tight box, press the operation of iron is safe, to prevent running fire

Q:Can the casting part be phosphating with the phosphating solution of the pickling board?: Like stainless steel casting, duplex stainless steel casting is phosphating, ductile iron gray iron is not required

Q:In theory, which is more expensive, forging parts or casting parts?: Compared with the price, the product with the same simple structure eliminates the material factorsThe forgings must be more expensive

Q:Domestic large steel castings factory which is better, recommend!: Do the casting manufacturer of large steel castings, Hunan Jinsha heavy industry science and technology limited company, heard that their professional only more than 1 tons of steel castings, anyway, 150T just big, the company won a lot of foundry industry patents should be good.

Q:Younger brother is to do casting valve, precision casting parts, the valve internal sand serious, but the appearance is very standard, this is why, for God answers, thank you!: Increase the refractoriness and looseness of core sand

Q:The casting sand is going on: 2, causes(1) sand mold (core) strength is not high, when the box a little reason will fall off.(2) the strength of sand mould (core) is not high, it can not stand the erosion of molten steel.(3) box sand mould (core) crush.(4) high strength under high temperature, warpage, deformation and protuberance into the cast steel under the action of high temperature molten steel.(5) the floating sand in the air hole of the sand mold falls, especially when the floating sand falls in the casting, and the floating sand on the surface of the sand mold is easy to fall through the air vent.(6) when the box is closed, the surface of the mold cavity and the surface of the sand core are not cleaned, and the sand (core) surface has floating sand and so on.

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:I often see Waixiejiagong drawings, casting, how to distinguish the latheman.: The technical condition or the material column in the title column will tell whether it is a casting drawing or not. However, the need for casting drawings, and some also through machining (car, milling, etc.), this should be part of the process drawings, process drawings are described

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

Grinding King are leading manufacturer and professional exporter of grinding media balls in China.with the annual output of 50,000 to 70,000 metric tons.Our products grinding media balls are mainly exported to more than 20 countries and regions in the world, such as Japan,Korea,Africa,Zambia,Malaysia,Phillipines,Indonesia,Mongolia,Australia,UAE,Chile etc.

1. Manufacturer Overview
Location	Shandong, China
Year Established	2000
Annual Output Value	Above US$100 Million
Main Markets	Africa; Mid East;South Asia;Southeast Asia;Eastern Asia;Southern Europe
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; Tianjin Port; Shanghai Port
Export Percentage
No.of Employees in Trade Department	6-10 People
Language Spoken:	English；Chinese；
b)Factory Information
Factory Size:	Above 40,000 square meters
No. of Production Lines	Above 10
Contract Manufacturing	Grinding Ball; Grinding Rod; Cylpeb; Grinding Media; Ball Mill Ball
Product Price Range	Average