Made in China Widely Used High Toughness Low Carbon Forged Grinding Balls
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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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Production Process of Widely Used High Toughness Low Carbon Forged Grinding Balls made in China
The production of casting steel balls is to melt the waste raw material such as waste steel, waste iron with medium frequency induction furnace. In the process of melting, add suitable amount of precious metal alloys(such as Ferrochrome, ferromanganese, ferro-vanadium ) to the furnace. When the temperature of the molten iron is more than 1550°C and can meet the requirements of the technics,pour the qualified molten iron to steel moulds or steel production line moulds. The content of chrome of high chrome alloy casting steel balls is ≥10.0%, the content of carbon is 1.80%-3.20%. Since the national standards require the HRC≥58, ak≥3.0J/cm2, to up to this hardness, the high chrome balls must be quenched and tempered. After quenched and tempered, the hardness(HRC≥60) is higher, the wear-resistance is more than 2.5 times of forging balls.
Production Technics of Widely Used High Toughness Low Carbon Forged Grinding Balls made in China
Raw material(waste steel,waste iron,iron alloy)factory inspection→blending→melt→composition inspection→casting→cooling and solidification→demould→clean and polish→inspection→quenching(increase hardness)→hardness inspection→tempering(eliminate stress)→inspection→warehousing
Chemcial Elements of Widely Used High Toughness Low Carbon Forged Grinding Balls made in China
Type and Chemical Composition of Forged Grinding Balls
Name | Chemical Elements (%) | |||||||
C | Si | Mn | Cr | Mo | Cu | P | S | |
Low Cr Balls | 2.2-2.5 | ≤1.2 | 0.5-1 | 0.8-1.8 | 0.6-1 | ≤1 | ≤0.05 | ≤0.05 |
Middle Cr Balls | 2.2-3.3 | ≤1.2 | 0.5-1 | 3-6 | 0.6-1 | ≤1 | ≤0.05 | ≤0.05 |
Normal High Cr | 1.6-3.3 | ≤1.0 | 0.5-1 | 10-13 | 0.8-1 | ≤0.6 | ≤0.05 | ≤0.05 |
Special High Cr | 2.0-3.3 | ≤1.o | 2.1-3 | 15-23 | 0.8-1 | ≤0.6 | ≤0.05 | ≤0.05 |
Type and Chemical Composition of Widely Used High Toughness Low Carbon Forged Grinding Balls made in China
Brand | Grade | C | Mn | Si | Cr | S | P |
Dp-1 | 50Mn | 0.48-0.56 | 0.70-1.0 | 0.17-0.37 | 0.25max | 0.035max | 0.035max |
Dp-2 | 60Mn | 0.57-0.65 | 0.70-1.0 | 0.17-0.37 | 0.25max | 0.035max | 0.035max |
Dp-3 | 65Mn | 0.6-0.7 | 0.9-1.2 | 0.17-0.37 | 0.25max | 0.035max | 0.035max |
Dp-4 | 75MnCr | 0.70-0.85 | 0.7-0.8 | 0.17-0.37 | 0.2-0.7 | 0.03max | 0.03max |
Dp-5 | Rail IronⅠ | 0.5-0.65 | 0.60-1.0 | 0.15-0.37 | 0.25max | 0.04max | 0.04max |
Dp-6 | Rail IronⅡ | 0.60-0.8 | 0.90-1.2 | 0.20-0.40 | 0.20-0.8 | 0.07max | 0.03max |
Weight and Microstructure of Widely Used High Toughness Low Carbon Forged Grinding Balls made in China
Norminal Diameter | Diametrical Tolerance(mm) | Approx Weight of Single Ball(kg) | Average Number of One MT | Microstructure |
25mm/1'' | +1.5,-0.5 | 0.064 | 15625 | M+B+C (M-Martensite;B-Bainitic;C-Carbide) |
30mm/1.25'' | +1.5,-0.5 | 0.11 | 9090 | |
40mm/1.5'' | +2.0,-1.0 | 0.26 | 3846 | |
50mm/2'' | +2.0,-1.0 | 0.51 | 1961 | |
60mm/2.5'' | +3.0,-2.0 | 0.89 | 1124 | |
70mm/2.75'' | +3.0,-2.0 | 1.4 | 714 | |
80mm/3.25'' | +3.0,-2.0 | 2.1 | 476 | |
90mm/3.5'' | +3.0,-2.0 | 3 | 333 | |
100mm/4'' | +4.0,-3.0 | 4.1 | 244 | |
110mm/4.5'' | +4.0,-3.0 | 5.47 | 283 | |
120mm/4.75 | +4.0,-3.0 | 7.1 | 141 | |
130mm/5'' | +4.0,-3.0 | 9.02 | 111 |
- Q:Shandong foundry, casting small pieces of precision casting
- Small foundry in Shandong too much, like many of us in Qingdao, then Dongying Changshun investment casting is a home, they are also casting precision casting equipment, specifically what I recommend that local enterprises, far is not convenient,
- Q:Question, such as title, I hope I don't copy the definition of rolling and casting in Baidu encyclopedia, thank you
- Service performance: heat conductivity, friction reduction, shock absorption, heat resistance and corrosion resistanceTo compare these properties, it depends on the specific material, structure, and use of the parts. Otherwise, there is no comparisonS
- Q:What's the density of the cast iron? The density is thin and the density is thin
- Uneven casting density is caused by uneven shrinkage of the casting during solidification.
- Q:What are the casting parts used to test shrinkage holes?
- 2. x ray. This method can do nondestructive testing, but the cost is higher. Generally, high castings are required.
- Q:What is the difference between casting and stamping parts?
- The purpose of forming processes is to allow the sheet to undergo plastic deformation without breaking the billet and to make the desired shape and size. In actual production, a variety of processes are often applied to a workpiece. Blanking, bending, shearing, drawing, bulging, spinning and rectification are several main stamping processes. The difference between stamping parts and castings: with thin, uniform, light, strong features, stamping can be produced by other methods difficult to make, with stiffeners, ribs, UPS or flanging of the workpiece, to improve its rigidity. Due to the use of precision molds, the workpiece accuracy up to microns, and repeated high precision, specifications consistent, you can punch out of the hole, lug and so on.
- 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:What are the effects of stiffeners on castings, or on welded parts (for 2 tons or less), casting or weldments on stiffeners?
- 3, weight: if reinforcement in products, casting weight is generally greater than the welding parts (the internal organizational structure and mode of production determines the mechanical properties of materials, so it determines the weight of the product), considering the cost of transportation, certain priority structure.
- 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:How to distinguish the forging parts and casting parts accurately
- To distinguish from the use of materialsForging materials are mainly made of carbon steel and alloy steel of various components, followed by aluminum, magnesium, titanium, copper and their alloys. The original state of the material is rod, ingot, metal powder and liquid metal. The materials needed for casting are mostly metal, wood, fuel, molding materials and so on. In contrast, the forging parts rarely produce dust, harmful gas and noise, etc., and play a more obvious role in environmental protection. Of course, because of this, the price of forged parts on the market is higher than that of castings.
- Q:Would you please tell me how to use casting parts for a year?The cast of an aircraft wing needs to be put aside for a year before it breaks;Does anyone know why?
- 3, the resonance method is cast on its resonant frequency vibration 1060ndn, to eliminate the residual stress in casting.
1. Manufacturer Overview |
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| 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 |
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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; 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 |
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Made in China Widely Used High Toughness Low Carbon Forged Grinding Balls
- 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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