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: The casting defects of pores, trachoma how to repair?: Metal repair can be used to fill the repair. Airhole 2mm following LT102 recommend the use of liquid metal repairing agent.

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 should I pay attention to when designing a casting structure?: 1 of the casting in metal mold cooling was faster than sand, metal type and let, thus casting in metal mold casting, casting stress generated in the ratio of sand casting to crack tendency is also large, but also prone to misrun and cold lap, white (for casting casting). Defect. Usually: (1) in the prevention of metal casting casting crack aspect should pay attention to the following problems: the structure of A in wall thickness, wall transition and connection to the ease, corner fillet appropriate requirements such as should be more strict than sand casting; B should be connected vertically connected with the wall to tilt C; for the weak parts of the structure should be set to strengthen ribs, bosses, to prevent casting; D should minimize the obstacle free shrinkage of the boss, casting rib, flange and other prominent part; E in the casting arrangement of ribs, but also should consider its influence on the casting shrinkage.

Q: Does anyone know how to make precise casting parts for aerospace or manufacturers of single and small quantities of automotive parts and components, mainly in Beijing, Tianjin and Tangshan?: List of China's military enterprises list of ten major military groupsChina Nuclear Industry Construction Group CorporationChina Aerospace Science and Technology CorporationChina Aerospace Science and Engineering CorporationChina Aviation Industry CorporationChina Aviation Industry Corporation IiChina State Shipbuilding CorporationcsicChina North Industries Group CorporationChina South Industries Group CorporationChina National Nuclear CorporationKey military enterprisesShipbuilding industry:China State Shipbuilding Corporation (South ship group), (China Shipping Group)China Shipbuilding Industry Corp (North Ship group), (China Shipbuilding Industry)Guangzhou Shipyard International Limited by Share Ltd (GSI)Jiangnan Heavy Industry Limited by Share Ltd (Jiangnan Heavy Industry)Nuclear industry:China National Nuclear Corporation (CNNC)China Nuclear Industry Construction Group Corporation

Q: How can the casting be quenched and tempered?: Return, general castings (especially steel castings) commonly used heat treatment process is normalized and tempered. Of course there are completely by annealing or remove stress annealing...

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: What kind of flaw detector is better for casting parts?: Casting using the detector test, you must first determine the detection process, such as the detection of surface and near surface crack defects, such as casting, recommended by CYD-3000, or CYD-5000 mobile magnetic testing machine for testing.

Q: Which surface is coarser for cast iron or cast steel castings? Why?: The surface of the steel is more rough, because the coating sand cast steel cast iron particles compared with graphite coating degree, the other one is to get a better air permeability and collapsibility of sand, the compaction degree is smaller than iron. Roughness mainly depends on the surface roughness on the surface of the sand.

Q: What foundry factories are used in the casting parts of China's major automobile manufacturers?: This is too muchYou do not have a specific list of statistics, but there are many foundries in china!Moreover, car prices are unlikely to be ordered in the local factories!

Q: In the design of casting steps and precautions, for casting design, we have what experience?.: A: in the design of metal castings in a complex shape, if the production process is very difficult, should not affect the casting conditions, try to make the casting has simple shape, strong structure change, removed from metallic die for.

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