Made in China Widely Used High Toughness Low Carbon Forged Grinding Balls
- Ref Price:
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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: What are the requirements for casting steel castings?
- 1, high quality requirements of the surface or the main processing surface should be placed below.
- 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: Casting parts by shot blasting, spray painting, baking after the formation of very small rust spots, how to solve ah?
- The first process is very important. Shot blasting must be thorough. The solution is to wipe the surface of the paint with a release. Re shot
- 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: What is the reason for 304 stainless steel precision casting parts to be changed?
- Steel deformation control is one of the most common problems in the metal processing industry. Any process will occur. The casting is the largest deformation and the least fine. It is generally used to produce blank blanks
- Q: How much is the amount of electrophoretic paint per square meter used in the casting?
- 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: 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: Cause of choking of casting parts
- Is it boiling from the picture? Does it sound like a fire? If not, it's not choking. I feel like choking. The gas doesn't drain out
- Q: When there is no flaw detection for large casting parts, is there any crack inside?
- Cracks are considered serious levels of defects and should be repaired
- Q: What's the cause of the choking of the casting?,
- 2. when casting mold exhaust condition is not good, in the casting material use consider whether and hinder its gas permeability; in the process to consider to release more pores, multi venting; core exhaust is particularly important.
1. Manufacturer Overview
| 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
| a) Certification Name | |
| Range | |
| Reference | |
| Validity Period |
3. Manufacturer Capability
| 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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