Forged Grinding Ball 20mm to 150mm Size System 1

Forged Grinding Ball 20mm to 150mm Size System 2

Forged Grinding Ball 20mm to 150mm Size

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Loading Port:: China Main Port

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

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Specifications of 20mm to 150mm Forged Grinding Ball:

higher hardness,
great toughness,
more dense tissue abrasion lower
Breakage rate is less than or equal to 1%

Chemical Composition of 20mm to 150mm Forged Grinding Ball:

e material	Chemical composition								Diameter of 100 ball hardness (HRC)
e material	C	Si	Mn	S	P	Cr	Ni	Mo	surface	core
45#steel	0.42-0.50	0.17-0.37	0.50-0.80	≤0.04	≤0.04	≤0.25	≤0.25		52-57	20-30
B2	0.65-0.78	0.17-0.37	0.70-1.20	≤0.035	≤0.035	0.55-0.60			55-60	35-40
50Mn	0.48-0.56	0.17-0.37	0.70-1.00	≤0.04	≤0.04	≤0.25	≤0.25		55-60	25-35
60Mn	0.57-0.65	0.17-0.37	0.70-1.00	≤0.04	≤0.04	≤0.25	≤0.25		55-60	25-35
65Mn	0.62-0.70	0.17-0.37	0.90-1.20	≤0.04	≤0.04	≤0.25	≤0.25		55-60	25-35
40Cr	0.37-0.45	0.20-0.40	0.50-0.80	≤0.035	≤0.035	0.80-1.10			55-60	25-35
B3	0.60-0.65	0.17-0.40	0.70-1.00	≤0.035	≤0.035	0.70-1.20			55-60	52-57
B6	0.77-0.85	0.17-0.37	0.70-1.00	≤0.035	≤0.035	0.88-0.98			55-60	55-60
42CrMo	0.38-0.45	0.20-0.40	0.50-0.80	≤0.035	≤0.035	0.90-1.20		0.15-0.25	55-60	25-35

Specification of 20mm to 150mm Forged Grinding Ball:

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.

Forged Grinding Ball 20mm to 150mm Size

Q: Casting blank in the cooling process to release a large amount of heat energy, what can be recycled?: Casting, do not need to provide a rough casting foundry drawings, according to your chart will put foot margin in the processing needs of the surface, the rest of the size can be found according to the mechanical design manual and manual casting. General Casting Factory Casting Division will be in your chart marked on shrinkage and processing margin figure (usually with red and green pen) to the patternmaker production of wood or other material mould diagram.

Q: The casting defects of pores, trachoma how to repair?: If the repair after the high temperature resistance, choose LT737 high temperature repair agent.

Q: It is generally said that cast iron is re smelted by pig iron. My question is..:1 pig iron for melting iron, is directly cast into products (such as bed cover, etc.); or that is just the first pig iron smelting iron casting, such as to cover, bed and other products, will once again cast iron melt to casting?2, there are many castings to the engine. Are these castings made by the engine manufacturer themselves or bought by others?There is no need to answer all. Thank you！！！: As a pig iron smelting, iron smelting belongs to physical, two belongs to the chemical refining, smelting, smelting generally not as a product after use, the product can be used as a chemical composition and casting the two refining, in general is to scrap as additional material after melting making products; engine castings have professional manufacturers making castings. You can own professional production of engine castings.

Q: Casting parts have poor surface finish. What sand is used to make them?: Manual coal dust, clay sand is a little worse. Mechanical styling is not bad either.

Q: How much is the amount of electrophoretic paint per square meter used in the casting?: It was a very simple question, and it was complicated by what you said.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: The cause of fracture and why there is no toughness: This question is too broad, see what the casting casting Oh in order to reduce the wayward cast steel, ductile iron, gray iron and white iron, you can choose the material according to their own requirements.

Q: For example, casting parts contain many holes, inclusions and other defects, the size and the number of holes exceed which limit is not qualified: For example, the castings shall be in accordance with the requirements of the second types of castings in the technical requirements for aluminum alloy castings of GB/T9438-1999;

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: When there is no flaw detection for large casting parts, is there any crack inside?: According to the industry standards, within the scope of the standard requirements to determine whether the product is qualified

Q: In the design of casting steps and precautions, for casting design, we have what experience?.: (3) to prevent generating white grey cast iron, in addition to taking measures from the process, must make the wall thickness is not too thin (some sources indicate that the corner wall thickness above 15mm, metal type casting must be in the corner, for Aluminum Alloy, magnesium alloy casting casting casting Create fillet should not be less than 3-4m, for casting round cast iron, copper alloy mould casting can see table 1.1-32 selection; (5) because of the metal and the core without let, for the convenience of the casting is taken out and the draw out type, slope casting casting should be suitably large than sand casting metal casting. General 30%-50%, it should be pointed out that in addition to the height of the slope of casting size and alloy type, wall, is also related to the casting surface position, where the cooling and contraction and metal surface of casting surface can be designed from the tendency of small inclination, while casting shrinkage tend to be pressed on the surface of metal castings the type should be given greater inclination, all kinds of metal type alloy casting casting casting.

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