Gold Mine Grinding Ball in Low Price and Good Quality, Made in China with Little Breakage Rate
- Ref Price:
-
- 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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As one of the leading grinding balls specialists in China, we can certainly assist you in buying all kinds of grinding balls that suit your company needs. Our yearly production capacity in about 200000 Ton. We own an integrated set of advanced import production line, so that you can be satisfied with the quality of our products.
1.Feature of Gold Mine Grinding Ball in Low Price and Good Quality, Made in China with Little Breakage Rate
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.Chemical Composition of Gold Mine Grinding Ball in Low Price and Good Quality, Made in China with Little Breakage Rate
Brand | C | Mn | Si | Cr | S | P | V |
1A | 0.37-0.55 | 0.50-1.0 | 0.17-0.47 | 0.80-1.2 | ≤0.035 | ≤0.035 | |
2A | 0.7-1.00 | 0.7-1.0 | ≤0.025 | 0.4-0.8 | ≤0.025 | ≤0.025 | |
3A | 0.45-0.65 | 0.7-0.8 | 1.5-1.8 | 0.77-1.0 | ≤0.006 | ≤0.025 | |
45 | 0.40-0.55 | 0.50-0.85 | 0.71-0.47 | ≤0.25 | ≤0.025 | ≤0.025 | |
65 | 0.55-0.70 | 0.80-1.25 | 0.17-0.47 | ≤0.25 | ≤0.035 | ≤0.035 |
3. Hardness of Gold Mine Grinding Ball in Low Price and Good Quality, Made in China with Little Breakage Rate
1A | 2A | 3A | 45 | 65 | |
Superficial | >60HRC | >60HRC | >60HRC | >58HRC | >60HRC |
Volumetric | >58HRC | >60HRC | >60HRC | >55HRC | >60HRC |
- Q:How to improve the surface roughness of casting parts?
- First, the accuracy of the model should be improved; two is to change the molding technique; the three is the coating; and the worker's technical level.
- Q:How do casting parts remove stress?
- Annealing treatment, according to different casting annealing treatment, eliminate thermal stress, if need to restore hardness or increase hardness, and then quenching treatment
- Q:What is the ejection angle of the die casting (Tan Gang)?
- Especially deep hole, and customers to discuss, generally take 0.3-1 degrees is enough
- 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:What is the difference between casting and stamping parts?
- Separation process is also called blanking, the purpose is to make the stamping parts along a certain contour line from the sheet metal separation, at the same time guarantee the quality requirements of the separation section. Stamping is a highly efficient production methods, the use of compound die, especially the multi station progressive die stamping process can be completed in a multi machine, realized by belt uncoiling, leveling, punching, forming and finishing automatic production. High production efficiency, good working conditions, low production costs, can produce hundreds of parts per minute.
- 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: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 is the reason for 304 stainless steel precision casting parts to be changed?
- Mainly because of the cooling shrinkage caused by internal stress caused. There is the change of temperature distribution in materials element imbalance, is typical of surface and internal, thin wall and thick wall, bottom and top.
- Q:How to distinguish the forging parts and casting parts accurately
- Distinguish from performance:The processing performance of forged parts is higher than that of the same material. The forging parts are compact and have good mechanical properties, but the casting parts may have sand holes, holes, shrinkage holes and other defects, and their mechanical properties are inferior to those of forgings. At the same time, forging processing can ensure the continuity of the metal fibrous tissue, fibrous tissue to forging and forging shape consistency, metal streamline integrity, can ensure the parts with mechanical properties and long service life good.
- Q:What are the casting parts tested?
- The surface brightness, appearance, size, chemical composition, weight, material, surface defects, internal defects, seals need to be checked, leakage, etc.
1. Manufacturer Overview |
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|---|---|
| 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 |
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|---|---|
| a) Certification Name | |
| Range | |
| Reference | |
| Validity Period | |
3. Manufacturer Capability |
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|---|---|
| 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 |
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Gold Mine Grinding Ball in Low Price and Good Quality, Made in China with Little Breakage Rate
- Ref Price:
-
- Loading Port:
- Qingdao Port
- Payment Terms:
- TT or LC
- Min Order Qty:
- 25M.T. m.t.
- Supply Capability:
- 200000M.T./Year m.t./month
OKorder Service Pledge
OKorder Financial Service
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