Graphitic Steel Roll With High Wear Resistance and High Performance
- 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
Type:
Rolling Machine
Feature:
High Efficiency
Forging method:
Mold Forging
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.
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: Can metal casting machinery produce castings with different finishes?
- Metal casting machinery is capable of producing castings with various finishes. The finish of a casting pertains to its surface texture and appearance, which can vary from smooth and polished to rough and textured. Various techniques and processes are available in metal casting machinery to achieve different finishes on castings. One popular method is sand casting, where a mold cavity is formed using a combination of sand and a binder. The surface finish of the casting can be influenced by the type of sand used, the molding process, and the surface treatment applied to the mold cavity. Different finishes can be attained by using different types of sand. For instance, fine sand can be used for a smoother finish, while coarse sand can be used for a rougher finish. Moreover, surface treatments like coatings or wax can be applied to the mold cavity to enhance the finish. Other metal casting processes, such as investment casting or die casting, also offer the capability to produce castings with diverse finishes. Investment casting involves a wax pattern that is coated with a ceramic shell, which can be textured or polished to achieve the desired finish. On the other hand, die casting utilizes a reusable steel mold to create castings with a consistent finish. The finish can be modified by altering the mold surface, such as incorporating textures or coatings. In summary, metal casting machinery offers the flexibility to produce castings with a wide array of finishes. The selection of casting process, mold design, and surface treatment can all be customized to meet specific finishing requirements, enabling the production of castings with distinct textures and appearances.
- Q: How does metal casting machinery ensure the uniformity of castings?
- Metal casting machinery ensures the uniformity of castings through various mechanisms such as precise control of temperature, pressure, and speed during the casting process. It also incorporates features like molds and cores that help in achieving consistent shapes and dimensions. Additionally, advanced technologies like computer numerical control (CNC) enable accurate replication of casting patterns, minimizing variations and ensuring uniformity in the final products.
- Q: How do you achieve desired mechanical and metallurgical characteristics with metal casting machinery?
- Achieving desired mechanical and metallurgical characteristics with metal casting machinery involves a combination of several key factors and processes. Firstly, selecting the appropriate metal alloy and composition is essential. Different alloys have varying mechanical and metallurgical properties, so choosing the right one is crucial. Once the alloy is determined, the next step is to prepare the mold. Proper mold design and preparation are critical to achieve the desired characteristics. This includes considering factors such as the gating system, risers, and the overall geometry of the mold. These elements help control the flow of molten metal and prevent defects like shrinkage or porosity. Maintaining the correct pouring and solidification temperature is also crucial in achieving the desired characteristics. This ensures proper solidification, minimizing the formation of undesirable microstructures and defects. Additionally, controlling the cooling rate can influence the final mechanical properties of the casting. To further enhance the metallurgical characteristics, heat treatment processes such as annealing, quenching, or tempering may be applied. These processes can modify the microstructure and improve the mechanical properties of the casting. Furthermore, post-casting processes like machining, grinding, or surface treatments can be employed to achieve the desired surface finish, dimensional accuracy, and mechanical properties. Lastly, quality control measures like non-destructive testing, visual inspection, and mechanical testing are essential to ensure that the desired mechanical and metallurgical characteristics are achieved. These tests help identify any defects or deviations from the desired specifications and allow for adjustments or corrective actions to be taken. In summary, achieving the desired mechanical and metallurgical characteristics with metal casting machinery requires careful consideration of factors such as 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 different types of molds used for sand casting in metal casting machinery?
- There are several different types of molds used for sand casting in metal casting machinery. These molds can be broadly categorized into two main types: expendable molds and permanent molds. Expendable molds are made from materials that can be easily destroyed or removed after the casting process is complete. The most common type of expendable mold used in sand casting is called a green sand mold. Green sand molds are made by mixing sand, clay, and water, which forms a moldable mixture that can be packed around a pattern. This type of mold is cost-effective and easily adaptable, making it suitable for a wide range of applications. Another type of expendable mold is called a dry sand mold. In this process, a mixture of sand and synthetic binders is used to create the mold. The mold is then baked in an oven to harden it before the molten metal is poured into it. Dry sand molds offer better dimensional accuracy and surface finish compared to green sand molds, but they are more expensive to produce. Permanent molds, on the other hand, are made from materials that can withstand multiple uses. These molds are typically made from metals such as steel or cast iron. Permanent molds are designed to be reusable, allowing for the production of multiple castings with consistent quality and accuracy. These molds are usually used for high-volume production runs or for casting complex shapes that require precise dimensions. In addition to green sand molds, dry sand molds, and permanent molds, there are also other specialized types of molds used in sand casting. For example, shell molds are made by coating a pattern with a mixture of sand and thermosetting resin. This type of mold offers excellent surface finish and dimensional accuracy, making it suitable for casting intricate and high-precision parts. Furthermore, ceramic molds can be used in sand casting for specific applications. Ceramic molds are made by pouring a slurry of ceramic material around a pattern, which is then dried and fired to harden it. These molds are often used for casting alloys that require high melting temperatures, such as titanium or superalloys. Overall, the choice of mold type in sand casting depends on factors such as the desired casting quality, production volume, complexity of the part, and material requirements. Each mold type has its own advantages and limitations, and it is crucial to select the appropriate mold for the specific casting application to achieve the desired results.
- Q: How are the cores placed in the mold cavity in metal casting machinery?
- The placement of cores in the mold cavity varies depending on the complexity of the casting design and the core material being used in metal casting machinery. One technique commonly used is known as "core setting." In this process, sand or other mold material is partially added to the mold cavity, and then the core is meticulously positioned within the cavity. The remaining mold material is then added to fully enclose the core. This method is typically employed for simpler castings with uncomplicated core shapes. For more intricate casting designs, a technique called "core assembly" is utilized. The core is constructed in sections or segments, which are then assembled within the mold cavity to form the complete core shape. Various techniques such as pins, clamps, or adhesive materials are used to align and secure the individual core segments. This approach allows for greater flexibility in creating complex and detailed casting designs. In certain cases, particularly with large or heavy cores, mechanical devices like cranes or robotic arms may be employed to accurately position the cores within the mold cavity. This guarantees precision and consistency in core placement, reducing the likelihood of defects or inaccuracies in the final casting. In summary, the careful and precise placement of cores in the mold cavity is crucial in metal casting machinery. The specific method used depends on factors such as the complexity of the casting design, the type of core material, and the capabilities of the casting machinery.
- Q: What are the main components of metal casting machinery?
- The main components of metal casting machinery typically include a furnace, a mold, a pouring system, and a cooling system. The furnace is responsible for melting the metal, usually through the use of heat generated from natural gas, electricity, or fuel oil. It is designed to reach and maintain high temperatures to ensure that the metal is in a molten state for casting. The mold is a critical component, as it determines the shape and size of the final product. It is usually made of a material that can withstand high temperatures, such as sand or metal. The mold is prepared by creating a negative impression of the desired product, which is then filled with the molten metal. The pouring system consists of channels and gates that allow the molten metal to flow from the furnace into the mold. It is designed to control the flow rate and direction of the metal, ensuring that it fills the mold evenly and avoids any potential defects. The cooling system is employed to rapidly cool the metal after it has been poured into the mold. This is essential for solidifying the metal and allowing it to retain its shape and structural integrity. Cooling can be achieved through the use of water or air, often through the circulation of coolant or the use of cooling plates. In addition to these main components, metal casting machinery may also include various auxiliary components such as crucibles, ladles, tongs, and sprue cutters, which aid in the handling and manipulation of the molten metal during the casting process.
- Q: What are the different types of pattern making methods used in metal casting machinery?
- Metal casting machinery utilizes various pattern making methods. These methods encompass wooden, metal, plastic, Styrofoam, and wax patterns. Traditional wooden patterns, crafted from wood, provide a cost-effective option for uncomplicated casting projects. They are easily shaped and allow for convenient modifications if necessary. In contrast, metal patterns, constructed from materials like aluminum or steel, offer enhanced durability, enabling repeated usage. These patterns are commonly employed in high-volume production scenarios or when intricate shapes are required. Plastic patterns, made from materials such as polyurethane or epoxy, are lightweight and highly manageable. They find utility in small-scale production or in instances demanding precision with intricate designs. The technique of lost foam casting entails the creation of Styrofoam patterns. A Styrofoam block is skillfully carved or shaped and coated with a refractory material. Upon pouring molten metal into the mold, the foam pattern vaporizes, leaving behind the desired metal casting. On the other hand, wax patterns are produced through investment casting. Molten wax is injected into a metal mold, resulting in the formation of a wax pattern. This pattern is then coated with a ceramic material, generating the mold. Subsequent heating of the mold causes the wax to melt and be removed, leaving behind the mold cavity. The final casting is achieved by pouring molten metal into this mold. The selection of a pattern making method hinges upon factors such as the complexity of the design, desired quantity of castings, and available resources. Each method possesses its own advantages and limitations.
- Q: What is the role of robotics in metal casting machinery?
- The significance of robotics in metal casting machinery cannot be overstated, as it has completely revolutionized the casting process, enhancing both efficiency and precision. Various aspects of metal casting machinery now utilize robotics, including mold making, pouring, and finishing operations. In the realm of mold making, robots are employed to create the necessary molds for casting. These robots are equipped with cutting-edge software and tools that enable them to shape the molds quickly and accurately. This automation significantly reduces the time and effort required compared to traditional manual methods, while also ensuring consistent mold quality and minimizing human error. During the pouring phase, robots take on the responsibility of handling and pouring molten metal into the molds. This eliminates the need for human workers to be exposed to the high temperatures and potential hazards associated with molten metal, thereby creating a safer working environment. Additionally, robots excel at precisely controlling the pouring process, resulting in consistent casting quality and minimizing defects. Robotic systems also play a critical role in the finishing operations of metal casting. They can be programmed to carry out tasks such as removing excess material, sandblasting, grinding, and polishing. By automating these labor-intensive and repetitive tasks, robots significantly increase efficiency, speed, and accuracy. This ultimately reduces costs and improves the overall quality of the finished product. Moreover, robotics in metal casting machinery offer enhanced flexibility and adaptability. Robots can be programmed to handle molds of different types and sizes, accommodating various casting requirements without the need for extensive retooling or manual adjustments. This versatility allows for increased production capabilities and the ability to quickly respond to changing customer demands. In conclusion, the integration of robotics in metal casting machinery has brought about transformative changes in the industry. Productivity, consistency, and safety have all been greatly improved as a result. These advanced technologies empower manufacturers to produce high-quality castings at a faster pace, with greater precision, and at reduced costs. Consequently, this enhances their competitiveness in the global market.
- Q: How are castings inspected for quality in metal casting machinery?
- Castings are inspected for quality in metal casting machinery through a variety of methods to ensure they meet the required standards. One of the primary inspection techniques is visual inspection, where trained inspectors carefully examine the castings for any surface defects such as cracks, porosity, or irregularities. They also check for proper dimensions, shapes, and surface finishes. In addition to visual inspection, there are several non-destructive testing (NDT) techniques employed to evaluate the internal quality of castings. One widely used method is radiographic testing, which involves passing X-rays or gamma rays through the casting and capturing the resulting image on a film or digital detector. This allows inspectors to detect internal defects such as voids, inclusions, or discontinuities. Another commonly used NDT technique is ultrasonic testing, where high-frequency sound waves are transmitted into the casting and the echoes are analyzed. This method helps identify internal defects, measure wall thickness, and assess the overall soundness of the casting. Magnetic particle testing is another NDT method that uses magnetic fields to identify surface and near-surface defects. A magnetic field is applied to the casting, and if there are any defects, magnetic particles are attracted to the area, making the flaws visible under proper lighting conditions. Dye penetrant inspection is another technique employed to detect surface defects. A liquid dye is applied to the casting, and after a certain dwell time, excess dye is removed. A developer is then applied, which draws the residual dye out of any surface defects, making them visible. Furthermore, dimensional inspection is carried out using precision measuring tools such as calipers, micrometers, and coordinate measuring machines (CMM). These tools ensure that the castings meet the required specifications and tolerances. Overall, a combination of visual inspection, non-destructive testing techniques, and dimensional inspection allows metal casting machinery to ensure the quality of castings by identifying any defects, internal or external, and verifying the dimensional accuracy of the final product.
- Q: Can metal casting machinery be used for die casting?
- Die casting, a specific metal casting process, involves injecting molten metal into a die under high pressure. Metal casting machinery, like die casting machines, can be tailored for die casting operations. These machines offer the necessary high pressure and precise control over molten metal injection. However, it is crucial to note that not all metal casting machinery is suitable for die casting. Die casting machines are designed to meet die casting requirements, including handling high pressures, maintaining tight tolerances, and ensuring consistent and repeatable production. To summarize, while metal casting machinery can be used for die casting, it is essential to utilize machinery specifically designed for optimal results and productivity in die casting operations.
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Graphitic Steel Roll With High Wear Resistance and High Performance
- 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
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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