Steel Grinding Ball With High Hardness & Good Wear-Resistance & No Breaking
- Ref Price:
-
- Loading Port:
- Qingdao
- Payment Terms:
- TT or LC
- Min Order Qty:
- 25M.T. m.t.
- Supply Capability:
- 150,000M.T. m.t./month
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Production Description:
Introduction of Steel Grinding Ball With High Hardness & Good Wear-Resistance & No Breaking:
Steel Grinding Ball is the pulverizing material used in ball mill as a grinding meda.
Steel Grinding Ball is wildly used in a) Metal Mines, b) Cement Plants, C) Water Coal Surry, d) Power Stations, e) Chemical Industry.
Steel Grinding Ball is consumables with big demands in worldwide.
Data Sheet for Steel Grinding Ball with High Hardness & Good Wear-Resistance & No Breaking
1) Main Specification of Steel Grinding Ball:
Size: 15-150mm
Hardness: 55-65HRC
Breakage Rate<0.5%
Impact Tough>12J/CM2
Endurance Test>20000times
2) Chemical Composition of Steel Grinding Ball:
Material | C | Mn | Si | Cr | S | P | Cu | Mo |
45# | 0.42-0.50 | 0.50-0.80 | 0.17-0.37 | 0.25 | - | - | 0.25 | 0.30 |
50Mn | 0.48-0.56 | 0.70-1.00 | 0.17-0.37 | 0.25 | - | - | 0.25 | 0.30 |
60Mn | 0.57-0.65 | 0.70-1.00 | 0.17-0.37 | 0.25 | - | - | 0.25 | 0.30 |
65Mn | 0.62-0.70 | 0.90-1.00 | 0.17-0.37 | 0.25 | - | - | 0.25 | 0.30 |
B-1 | 0.52-0.65 | 0.60-1.20 | 0.17-0.37 | 0.25max | 0.035max | 0.035max | - | - |
B-2 | 0.50-0.80 | 0.60-0.80 | 0.17-0.37 | 0.90-1.10 | 0.035max | 0.035max | - | - |
B-3 | 0.72-0.92 | 0.70-1.00 | 0.17-0.37 | 0.50-0.90 | 0.035max | 0.035max | - | - |
3) Physical Property of Steel Grinding Ball:
Diameter |
Hardness (HRC) |
Broken rate |
Impact value |
Falling ball number |
Microstructure
|
15-150MM | ≥45 | 1% | 12 | 12000 | M+C |
15-150MM | ≥50 | 1% | 12 | 12000 | M+C |
15-150MM | ≥58 | 0.5% | 15 | 15000 | M+C |
15-150MM | ≥62 | 0.5% | 15 | 15000 | M+C |
15-150MM | ≥50 | 0.5% | 15 | 15000 | M+C |
15-150MM | ≥58 | 0.5% | 15 | 15000 | M+C |
15-150MM | ≥65 | 0.5% | 15 | 15000 | M+C |
4) Process of Production of Steel Grinding Ball:
(1).Raw material
(2).Cutting
(3).Heating
(4).Forging
(5).Quenching
(6).Tempering
(7).Testing
(8).Qualified Products
(9).Packing
Packing of Steel Grinding Ball:
1) Container bags, each one can load 1000kgs
2) Drums, each one can load 800-900kgs
- Q:What is normalizing, annealing, tempering, quenching? What is the difference between forging parts and casting parts?
- For the nodular cast iron, the hardness, strength and wear resistance are improved, such as used in the manufacture of automobile, tractor, diesel engine crankshaft, connecting rod and other important parts. A normalizing and hypereutectoid ball annealing before, can eliminate the mesh two cementite spheroidizing annealing, to ensure that all spheres of cementite. Annealing is a metal heat treatment process, which means the metal is slowly heated to a certain temperature, sufficient for a long time, and then cooled at an appropriate speed. The purpose is to reduce hardness, improve machinability, eliminate residual stress, stabilize size, reduce deformation and crack tendency, refine grain, adjust microstructure and eliminate tissue defects. Its purpose: (1) reduce hardness and improve machinability; (2) eliminate residual stress, stabilize size, reduce deformation and crack tendency; (3) refine grain, adjust microstructure and eliminate tissue defects. In production, annealing process is widely used.
- Q:Question, such as title, I hope I don't copy the definition of rolling and casting in Baidu encyclopedia, thank you
- The performance is too extensive, I think the following several people all fall into the erroneous zone directly, the performance includes a series of aspects:Mechanical properties: tensile strength, yield strength, elongation and contraction ratio of section and impact toughness after etc.
- Q:What is the ejection angle of the die casting (Tan Gang)?
- Because after the wax, wax parts will have a slight contraction, which is good for demoulding. Many moulds don't do the ejection angleEspecially deep hole, and customers to discuss, generally take 0.3-1 degrees is enough
- Q:How to get rid of casting sand inside casting parts?
- Are you saying that in the sand casting cavity? We use the manual blast, he is like a pipe will be automatic shot out of the grit, into the casting cavity, to remove the internal cavity in the purpose of casting sand!
- 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!
- If is casting, internal shell mold may be not completely dry, strength is not enough, resulting in shell mold collapse into molten steel.It is also possible that the refractory is not refractory enough.
- Q:What should I pay attention to when designing a casting structure?
- The basic structure of unit 3 in the design of metal casting casting and its parameters are selected, usually should also pay attention to: (1) because of the metal type heat quickly, so the metal type casting minimum wall thickness should be bigger than the sand casting casting casting; (2) the inner wall of the internal ribs and the thickness of a should be connected the outer wall thickness of 0.6 to 0.7, or as the inner wall (rib) cold slowly, cracks in the wall at the junction in the casting shrinkage; (3) to prevent generating white grey cast iron, in addition to taking measures in the process, must make the wall thickness is not too thin (some information that cast fillet at the corner of the wall thickness of 15mm or more, with metal casting casting must be in the corner, for Aluminum Alloy, metal casting magnesium alloy castings shall not be less than 3 ~ 4m; (4) because of the metal type and the core that, for To facilitate the extraction of castings and casting out type, slope casting should be suitably large than sand casting metal casting, the general should be 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 of the metal type the 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 casting type should be given greater inclination.
- Q:How can the casting be quenched and tempered?
- Cast steel annealing or normalizing parts in strength and toughness is insufficient, can be used in quenching and tempering treatment. It is mainly used for gear, gear and other parts of the cast steel. The conditioning has two kinds: one kind is cast directly after quenching and tempering, with warm water (40---50 degrees) intermittent cooling, suitable for ZG270---500, ZG310----570 and other castings.
- Q:When the blank is a casting, the margin is evenly distributed, how should rough machining?Please help friends from mechanical classes.There is another problem: in the NC milling plane contour machining, when the rough margin is large, how to deal with.Who can help in time, add 20 reward. Urgently!!
- Problem one,1, according to drawings, castings, material requirements and machine power, choose the right diameter of roughing tools, and can process this material blade type.2, according to the actual size of the casting blank, calculate the number and path of the knife, pay attention to small cutting depth, large feed, cutting width, to ensure that the tool diameter 80 - 90%, the amount of not full knife cutting, this tool and machine tool damage.Question two,If they can not change the casting blank allowance under the condition that the quantity large diameter cutter, such as milling cutter main angle 7560 degrees can give reasonable processing parameters, the same cutting depth should not be too large, because in the same machine power, tool diameter increases, cutting depth will need smaller.
- Q:Why does the surface of stainless steel casting mirror mirror ripple?
- Because the grinding machine is layer by layer. And the material inside the casting is not completely uniform.
- Q:After reaming, the roughness can reach several levels, that is to say, the sample.Casting parts in rocker arm drilling, reaming, roughness, block. After reaming, the roughness can reach several levels, that is to say, the sample.
- Radial drilling machine can achieve boring, reaming function, but as much as you want, according to your requirements and material to determine!
1. Manufacturer Overview |
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|---|---|
| Location | Zhangqiu, China |
| Year Established | 1995 |
| Annual Output Value | 150,000M.T. |
| Main Markets | 40%,South America; 30%,South Africa; 15%,Southeast Asia; 5%, Europe Area; 5%, North America; 5%, Other Areas |
| Company Certifications | ISO9001:2008;SGS Test Report |
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;Tianjin |
| Export Percentage | |
| No.of Employees in Trade Department | 25 |
| Language Spoken: | English, Chinese |
| b)Factory Information | |
| Factory Size: | 68,000m2 |
| No. of Production Lines | 15 |
| Contract Manufacturing | |
| Product Price Range | $700/M.T.-$1200/M.T. |
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Steel Grinding Ball With High Hardness & Good Wear-Resistance & No Breaking
- Ref Price:
-
- Loading Port:
- Qingdao
- Payment Terms:
- TT or LC
- Min Order Qty:
- 25M.T. m.t.
- Supply Capability:
- 150,000M.T. m.t./month
OKorder Service Pledge
OKorder Financial Service
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