Mill Rolls High Speed Steel Roller With Good Quality
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 2 m.t.
- Supply Capability:
- 41000 m.t./month
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Specification
Company Profile
CNBM International Corporation (CNBM International) is the most important trading platform of CNBM Group Corporation, a state-owned company under the direct supervision of State-owned Assets Supervision and Administration Commission of the State Council.
CNBM Group is integrated with four business segments: Manufacture, R&D,Sets of equipment and Logistics trading.Mill rolls are our main products.
CNBM International is highly recognized by its business partners and clients all over the world and has established good business relationship with the customers in over 120 countries and regions all over the world.
The product introduction of mill roll
Equipped with advanced technological facilities on melting, casting, forging, heat treating and mechanical machining, our factory has formed 9 professional complete roll manufacturing lines of cast steel, cast iron and forged steel rolls such as strip mill rolls, heavy section mill rolls, wire & bar rolls, special shaped rolls and small-sized cold rolls and specialized production lines of bloom and slab CCM, coke oven equipments and wind power products. Annual production capacity of mill rolls is 500,000 tons, metallurgical equipment is 80,000 tons.
Workshop
Workshop is the core of our company and undertakes all of scientific research work. The company specially produces and supplies all kinds of roll used for hot strip mill, cold strip mill, plate & heavy plate mill, large-sized section mill, universal mill etc.
Products & Specification
| Mill | Application | Material | Product Specification | ||
| Hot Strip Mill | Large-sized vertical roll | Special alloy cast roll, Adamite | All Sizes | ||
| Small-sized vertical roll | Adamite, HiCr iron | ||||
| Roughing work roll | Special alloy cast steel, Adamite, HiCr steel, Semi-HSS, HiCr iron | ||||
| Finish rolling | Early stand work roll | HiCr iron, HSS | |||
| Later stand work roll | ICDP, HSS | ||||
| Finishing back-up roll | Duplex cast steel | D≤¢2000,W≤80t | |||
| Alloy forged steel | D≤¢2000,W≤75t | ||||
| Temper rolling | Work roll | HiCr iron | All Sizes | ||
| Alloy forged steel | |||||
| Back-up roll | ICDP | ||||
| Duplex cast steel | D≤¢2000, W≤80t | ||||
| Alloy forged steel | D≤¢2000, W≤75t | ||||
| Mill | Application | Material | Product specification |
Cold strip mill & Single stand cold mill | Work roll | Alloy forged steel | All Sizes |
| Intermediate roll | Alloy forged steel | ||
| Temper roll | Alloy forged steel | ||
| Back-up roll | Duplex cast steel | D≤¢2000,W≤80t | |
| Alloy forged steel | D≤¢2000,W≤75t | ||
Largesized universal structural mill | Break-down roll | Special alloy cast steel, alloy nodular iron | All Sizes |
| Horizontal collar | High carbon adamite (duplex) | ||
| Vertical collar | High carbon adamite, HiCr iron | ||
| Edger roll Edger roll | High carbon adamite | ||
| Shaft | Alloy forged steel |
| Mill | Application | Marterial | Product Specification | |
| CSP | Vertical Roll | Adamite, Special alloy cast steel, HiCr iron | All Sizes | |
| Roughing work roll | Semi-HSS, HiCr Steel | |||
| Finish rolling | Early stand | HiCr iron, HSS | ||
| Later stand | ICDP, HSS | |||
| Roughing & Finishing back-up roll | Duplex cast steel | D≤¢2000,W≤80t | ||
| Alloy forged steel | D≤¢2000,W≤75t | |||
| Steckel Mill | Vertical roll | Adamite, Special alloy cast steel | All Sizes | |
| Roughing work roll | ICDP, HiCr iron | |||
| Finishing work roll | HiCr iron, ICDP | |||
| Back-up roll | Duplex cast steel | D≤¢2000,W≤80t | ||
| Alloy forged steel | D≤¢2000,W≤75t | |||
| Plate & Heavy plate mill | Rough rolling | 2-hi work roll | Special alloy cast steel, Tool steel | All Sizes |
| 4-hi work roll | HiCr iron, ICDP | |||
| Finishing work roll | HiCr iron, ICDP | |||
| Single stand work roll | HiCr iron, ICDP | |||
| Back-up roll | Duplex cast steel | D≤¢2000,W≤80t | ||
| Alloy forged steel | D≤¢2000,W≤75t | |||
Quality Control
The company has the most advanced experimental and testing equipments in global mill roll industry, including direct-reading spectrometer, spectrum analyzer , X-ray fluorescence analyzer, scanning electronic microscope, energy disperse spectroscopy, X-ray diffractometer, image analyzer, high/low temperature metallographic microscope, X-ray stress meter, brittleness temperature tester, thermal analogue machine, dilatometer, macro and micro hardness tester, OMNISCAM-1X automatic flaw detection, USN60 ultrasonic flaw detector, magnetic powder and non-destructive flaw detection etc,. The advanced inspection equipments and experimental methods provide guarantee for quality control and experiment on material, usability test and performance.
Professionals & Comprehensive Inspection
The factories of CNBM invested 2.3 billion RMB for large-scale
CNBM international Corporation has completed equipment and technology upgrade transformation, which was concentrated on three projects, production line of centrifugal casting rolls for hot strip and plate mill, forged roll for cold/hot strip mill, national class technology center and roll material lab. Through upgrade transformation, the following targets have been achideved:
(1)It becomes the world's biggest specialized mill roll maker with the largest production scale, the most complete specifications of products and the most extensive coverage of various rolls used on rolling mill.
(2) The technology of equipments has reached international leading level.
(3) "Mechanization, automation, intellectualization, digitization" of equipments obviously improve the quality control ability.
(4) New types of research instruments improve the R&D capacity of products.
Customers Visit
FAQ
Q:Are you a trading company or manufacturer?
A:CNBM is a large-scale central governmental industrial group with its own manufacturing sector, research and development sector, trading sector and logistics sector.
Q:I have some special requirement about specifications.
A:We have a well-rounded product range, which endows us with the capability of applying many special specifications. Please feel free to contact us with yours.
Q:Do you accept OEM service?
A:Yes, we do.
Q:What is your delivery time?
A:It depends on the size/complexity of your order and our own production schedule. Usually we provide a faster delivery than the industry's average.
Q:What is the payment term?
A:Our payment terms are negotiable.
Q:Can I have my own logo on the product?
A:Sure, we can apply your own logo on the products according to your requirement.
- Q:What are the different types of molds used for sand casting in metal casting machinery?
- There are several types of molds used for sand casting in metal casting machinery, including green sand molds, dry sand molds, skin-dried molds, and chemically bonded sand molds.
- Q:How do you achieve desired mechanical and metallurgical characteristics with metal casting machinery?
- To achieve the desired mechanical and metallurgical characteristics using metal casting machinery, several key factors and processes must be combined. The first step is to choose the appropriate metal alloy and composition, as different alloys have different properties. Once the alloy is determined, it is important to properly prepare the mold. This involves considering factors such as the gating system, risers, and overall mold geometry, which help control the flow of molten metal and prevent defects. Maintaining the correct pouring and solidification temperature is crucial to ensure proper solidification and minimize the formation of undesirable microstructures and defects. Additionally, controlling the cooling rate can affect the final mechanical properties of the casting. To further enhance the metallurgical characteristics, heat treatment processes like annealing, quenching, or tempering can be used to modify the microstructure and improve the mechanical properties. Post-casting processes like machining, grinding, or surface treatments can also be employed to achieve the desired surface finish, dimensional accuracy, and mechanical properties. Finally, quality control measures such as non-destructive testing, visual inspection, and mechanical testing are essential to ensure that the desired characteristics are achieved. These tests help identify any defects or deviations from the desired specifications and allow for necessary adjustments. In conclusion, achieving the desired mechanical and metallurgical characteristics with metal casting machinery involves careful consideration of factors like alloy selection, mold design, pouring temperature, cooling rate, heat treatment, post-casting processes, and quality control measures. By optimizing these factors, manufacturers can produce castings with the desired properties for various applications.
- Q:What are the common quality control techniques used in metal casting machinery?
- There are several common quality control techniques used in metal casting machinery to ensure the production of high-quality castings. These techniques include: 1. Visual Inspection: Visual inspection is the most basic quality control technique used in metal casting. It involves visually examining the castings for any defects such as cracks, surface imperfections, or dimensional inaccuracies. 2. Dimensional Inspection: This technique involves measuring the dimensions of the castings using various tools such as calipers, micrometers, or coordinate measuring machines (CMM). Dimensional inspection ensures that the castings meet the required specifications and tolerances. 3. Non-Destructive Testing (NDT): NDT techniques are used to detect defects in castings without causing any damage to the parts. Some common NDT methods used in metal casting include X-ray inspection, ultrasonic testing, magnetic particle testing, and dye penetrant testing. These techniques help identify internal defects such as porosity, cracks, or inclusions. 4. Mechanical Testing: Mechanical testing involves subjecting the castings to various physical tests to assess their mechanical properties. These tests may include tensile testing, hardness testing, impact testing, or fatigue testing. Mechanical testing helps ensure that the castings possess the desired strength, ductility, and other mechanical characteristics. 5. Chemical Analysis: Chemical analysis is performed to determine the composition of the casting materials. It helps ensure that the metal alloy used for casting meets the required specifications in terms of chemical composition. Common chemical analysis techniques include spectroscopy, optical emission spectrometry, or wet chemical analysis. 6. Metallographic Examination: Metallographic examination involves examining the microstructure of the castings under a microscope. This technique helps assess the soundness of the casting, identify any defects, and verify the desired microstructural characteristics. 7. Process Control: Process control techniques are used to monitor and control the various parameters involved in the casting process. This includes monitoring the temperature, pressure, flow rates, and other process variables to ensure consistent quality in the castings. By employing these quality control techniques, metal casting machinery can produce castings that meet the required specifications, are free from defects, and possess the desired mechanical properties. This helps ensure the reliability and performance of the castings in various applications.
- Q:How is the riser removed from the casting in metal casting machinery?
- In metal casting machinery, the riser is typically removed from the casting through a process called riser removal or riser gating. This process is performed after the casting has solidified and cooled down. Firstly, the riser is identified and marked for removal. The riser is a part of the casting that is designed to feed molten metal into the casting cavity to compensate for any shrinkage during solidification. It is usually located at a thicker section of the casting, allowing it to solidify last. To remove the riser, various techniques can be employed depending on the size and shape of the casting. One common method is called cutting or sawing. A cutting tool, such as a bandsaw or a cutting wheel, is used to carefully remove the riser from the casting. This method is often used for smaller castings or when the riser is easily accessible. For larger or more complex castings, other methods like grinding, milling, or chiseling may be employed. These techniques involve using specialized tools to gradually remove the riser from the casting. It requires skilled operators to ensure that the casting is not damaged during the process. Once the riser is removed, the remaining surface of the casting is typically cleaned and finished to meet the desired specifications. This may involve additional machining, grinding, or polishing to achieve the desired shape and surface finish. Overall, the riser removal process in metal casting machinery is a critical step to ensure the final casting meets the required specifications. It requires careful planning, skilled operators, and appropriate tools and techniques to successfully remove the riser without damaging the casting.
- Q:How can defects be prevented or minimized in investment casting with metal casting machinery?
- Defects in investment casting can be prevented or minimized through various measures such as using high-quality molds, maintaining proper temperature control, ensuring proper gating and venting systems, controlling the pouring process, implementing effective quality control measures, and utilizing advanced inspection techniques.
- Q:What are the cost-saving measures for metal casting machinery?
- There are several cost-saving measures for metal casting machinery, including optimizing the casting process to minimize material waste, implementing energy-efficient technologies to reduce power consumption, utilizing automation and robotics to increase productivity and reduce labor costs, conducting regular maintenance and inspections to prevent breakdowns and prolong the lifespan of the machinery, and sourcing materials and components from reliable and cost-effective suppliers. Additionally, implementing process improvements and utilizing advanced simulation and modeling techniques can help reduce trial and error costs in the casting process.
- Q:How is the pouring of molten metal controlled in metal casting machinery?
- Metal casting machinery utilizes various techniques and mechanisms to control the pouring of molten metal. One commonly employed method is gravity pouring, where the molten metal is poured into a ladle positioned above the mold and allowed to flow into the mold cavity under the force of gravity. The rate and quantity of metal poured can be regulated by adjusting the ladle's height or the size of the pouring gate. Another technique is tilt pouring, which involves mounting the entire casting system, including the ladle, on a tilting mechanism. By controlling the tilt angle, the operator can regulate the flow of molten metal into the mold. This method is often used for larger castings or when precise flow control is necessary. Advanced casting machinery incorporates automatic pouring systems that rely on sensors and computer-controlled mechanisms. These systems monitor the level of molten metal in the ladle and adjust the pouring rate accordingly, ensuring consistent and accurate pouring into the mold. In addition, some casting machinery employs vacuum or pressure casting techniques. Vacuum casting applies a vacuum to the mold cavity, aiding in drawing the molten metal into the mold and eliminating air entrapment. Pressure casting, on the other hand, pressurizes the mold, forcing the molten metal into the mold cavity. Both techniques enhance control over the pouring process, minimizing defects and improving casting quality. To summarize, metal casting machinery utilizes a combination of gravity, tilt, automatic systems, and advanced techniques like vacuum or pressure casting to achieve precise control over the flow rate, quantity, and quality of molten metal being poured into the mold, resulting in high-quality castings.
- Q:How does metal casting machinery handle the packaging and shipping of castings?
- Metal casting machinery does not directly handle the packaging and shipping of castings. After the casting process is complete, the castings are typically removed from the molds and inspected for quality. It is then the responsibility of the manufacturer to package and ship the castings using appropriate packaging materials and shipping methods to ensure their safe delivery to customers or distribution centers.
- Q:What are the common accessories and attachments for metal casting machinery?
- Metal casting machinery commonly utilizes various accessories and attachments. These include: 1. Crucibles, which are containers designed to withstand heat and melt metal. They are available in different sizes and materials like graphite, ceramic, or clay. 2. Ladles, which are employed to transfer molten metal from the crucible to the mold in a safe manner. Typically made of steel or iron, they have long handles for pouring. 3. Tongs, essential tools for handling and manipulating hot metal. They come in diverse shapes and sizes, including flat, round, or V-shaped, to accommodate different casting needs. 4. Molds, used to shape molten metal into desired forms. The material of the mold may vary based on the casting technique and the complexity of the object being cast, including sand, plaster, or metal. 5. Sprue cutters, specifically designed to remove the sprue, which is the channel enabling molten metal flow into the mold. These tools ensure precise cutting and removal of the sprue without damaging the cast object. 6. Flux, a chemical compound applied to molten metal to eliminate impurities and enhance the quality of the cast metal. It prevents oxidation and facilitates clean casting. 7. Safety gear, crucial for working with metal casting machinery. This includes heat-resistant gloves, aprons, face shields, and safety glasses to protect against heat, sparks, and debris. 8. Cooling equipment, necessary to manage the temperature and solidify the cast metal due to the significant heat generated during metal casting. Cooling equipment can include water-cooled systems, fans, or cooling chambers. 9. Furnaces, utilized to heat the metal to its melting point. The type of furnace varies, such as electric, gas, or induction furnaces, depending on the size and type of metal being cast. 10. Sand conditioning equipment, essential for sand casting where sand is used as the mold material. Sand mixers and sand reclaimers are employed to prepare and recycle the sand, maintaining its quality and consistency. These examples represent the common accessories and attachments found in metal casting machinery. The specific equipment required may vary depending on the casting process, type of metal, and production scale.
- Q:How does metal casting machinery handle the removal of burrs from the castings?
- Metal casting machinery handles the removal of burrs from castings through various methods such as grinding, tumbling, or using specialized tools. These techniques help smoothen the surface of the castings, eliminating any rough edges or protrusions caused during the casting process.
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Mill Rolls High Speed Steel Roller With Good Quality
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 2 m.t.
- Supply Capability:
- 41000 m.t./month
OKorder Service Pledge
OKorder Financial Service
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