runxiang-machinery

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Three High Mill: The Backbone Of Steel Production

Runxiang Machinery is a leading manufacturer of rolling mill equipment for steel production. Our product range includes roughing mill, back up mill and three high rolling mill, among others. Our equipment can produce all kinds of steel products, such as bars, wires, strips and so on. With an annual output of up to 500,000 tons, our equipment is tailor-made to meet the needs of customers in different countries. Our three high rolling mill is essential equipment in the steel production process. The mill is designed to produce steel of consistent thickness, width and surface quality. The rolling mill consists of three horizontally positioned rollers that apply pressure to the steel as it passes through the mill. Work rolls are used to reduce the thickness of the steel while maintaining its width, and backup rolls provide additional support for the work rolls.

On the other hand, our roughing mills are mainly used for the preliminary shaping of steel. It is especially suitable for the production of various types of steel. The mill is designed to handle the initial reduction in steel thickness in preparation for further processing in the finishing mill. The roughing mill is equipped with a reliable system to ensure the stability and accuracy of the rolling process. One of the main features of our equipment is its reliability. Our equipment is designed to withstand the rigors of the steel production process, ensuring consistent performance and minimal downtime. Regular maintenance is performed by our team of experienced engineers and technicians to keep our equipment running at peak performance. Another important feature of our rolling mill equipment is its versatility. Our equipment can be customized to meet the specific needs of our customers. According to the requirements of the steel production process, our equipment can be adjusted to produce steel products of different sizes and shapes. At Runxiang Machinery, we are committed to providing our customers with high quality rolling mill equipment. Our products are exported to various countries, including Southeast Asia, Middle East, Central Asia, Europe and other regions. With our state-of-the-art technology, superior quality and outstanding customer service, we have established ourselves as a leading manufacturer of rolling mill equipment in the industry. In conclusion, our three-high rolling mill is an essential equipment for steel production. With outstanding features such as reliability, versatility and ability to consistently produce high-quality steel, it has become the backbone of the steel production industry. At Runxiang Machinery, we are committed to providing high-quality, customized rolling mill equipment to meet the needs of customers in different countries. Read the full article

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The Importance Of Aluminum Melting Furnace Suppliers To Intermediate Frequency Furnace Factory

With the increasing demand for metals in various industries, intermediate frequency furnace factory have become more important than ever. These factories are responsible for the production of high-quality metals for everything from automobiles to construction. However, their efficiency and output depend largely on the type of equipment used, especially aluminum induction furnace. Aluminum melting furnace is an indispensable equipment for intermediate frequency furnace factory. They use medium frequency power supplies for induction heating, melting and holding. The intermediate frequency furnace can melt carbon steel, alloy steel, steel, copper, aluminum and other non-ferrous metals. It is the perfect solution for any factory that needs to produce high-quality metals. One of the main features of the intermediate frequency furnace is its small size and light weight. Despite its compact design, it melts metal extremely quickly, making it efficient. In addition, the furnace temperature is easily controlled to ensure consistent metal yield. The high productivity of this furnace makes it an essential part of any intermediate frequency furnace plant. Intermediate frequency furnaces are mainly used for casting and heat treatment in factories. They are commonly used in the production of carbon steel, alloy steel, and other metals that require high-temperature smelting. Manufacturers can customize furnaces to meet their needs based on the type of metal they produce.

Therefore, it is imperative for plant owners to work with a trusted and experienced of aluminum melting furnace suppliers. Guangxi Runxiang Machinery is one such supplier, providing complete sets of equipment and accessories for the metallurgy, steel rolling and mining industries. Products are exported to Southeast Asia, the Middle East, Central Asia, Europe and other parts of the world. In conclusion, intermediate frequency furnace plants play a vital role in the production of high-quality metals used in various industries. These factories rely on the efficiency of Aluminum Induction Furnaces from reliable sources. The quality of intermediate frequency furnaces is an important factor in the production of high-performance metals that meet industry standards, and Guangxi Runxiang Machinery is a supplier that can provide these industry requirements. Read the full article

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Understanding The Characteristics Of Short Stress High Stiffness Rolling Mill

Rolling mills are crucial in the manufacturing industry as they play a vital role in shaping and transforming metals into the desired products for various applications. Among these mills, the short stress line mill stands out for its high stiffness and robust mechanical structures that allow for efficient and accurate rolling processes. We will delve into the mechanical structure of the short stress high stiffness rolling mill, it's product features, and the rolling mill machinery price. The short stress high stiffness rolling mill is designed to distribute rolling force along the stress loop distribution of each bearing part as it rolls steel. This rolling mill is composed of multiple vital components such as the roll system assembly, roll joint adjustment mechanism, axial adjustment mechanism, and pull rod assembly. These features work together to allow efficient rolling processes that guarantee the required outcome. The mill roll system assembly is particularly crucial in determining the performance of the short stress line rolling mill. This assembly consists of four short cylindrical bearings that have a long bearing life and a high carrying capacity. However, these bearings can only bear radial force and not axial force. Therefore, a double-row angular contact ball bearing is used to bear axial force. This bearing system also allows for the outer ring of the four columns short cylindrical bearing to emerge freely, thus allowing for easy assembly and disassembly as needed.

Considering the features of the short stress line mill, its price can be relatively high compared to other steel rolling equipment. However, the cost can vary depending on various factors such as production capacity, specifications, and the manufacturer. At Runxiang Machinery, we specialize in producing and supplying high-quality rolling mill machinery at competitive prices. Our extensive experience in the smelting, casting, heat treatment, and mechanical processing industries enables us to provide customers with the best-in-class rolling mill machinery that is both durable and efficient. In conclusion, the short stress line mill is a crucial steel rolling equipment that provides high stiffness and robust mechanical structures for efficient and accurate rolling processes. It is mainly composed of the roll system assembly, roll joint adjustment mechanism, axial adjustment mechanism, and pull rod assembly. At Runxiang Machinery, we strive to provide our clients with the best short stress line mill machinery at competitive prices. Contact us today to learn more about our products and services. Read the full article

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Working Principle Of Hot Rolling Mill

The working principle of a hot rolling mill is a complex process that involves the gradual reduction of the mirror wheel track using advanced steel rolling equipment. This process culminates in rough iron being rolled and extruded into a variety of strong metal shapes, including square bars, angle bars, I-beams, and flat irons. Hot rolling mills are used in manufacturing to make a large number of metal products. Runxiang Machinery is a Chinese manufacturing enterprise specializing in the production of steel rolling equipment, and is an expert in the field of hot rolling mill technology. The working scope of the hot rolling mill is to use complex and very large number of pressure rollers to gradually reduce the distance between the mirror wheels. By using this process, rough iron is rolled and rolled into strong extrusions of various types of profiles. A hot rolling mill is an integral part of the steel manufacturing process as it produces high quality products used in many different industries.

A hot mill works by heating metal to its plastic deformation temperature, then passing it through a series of rolls. The rollers apply pressure to the metal, deforming it and eventually forming it into the shape of the desired product. Runxiang Machinery has production supporting processes such as steelmaking, steel casting, heat treatment, machining, surfacing and so on. The company has formed an integrated industrial chain of smelting, casting, metal heat treatment and mechanical processing. This ensures the company has full control over every step of the production process, enabling them to manufacture high-quality hot rolling mills that produce exceptional results. Hot rolling mills come in a variety of sizes and specifications. The type of rolling mill used depends on the material being rolled, the desired product thickness and shape, and other factors. Runxiang Machinery has the capability to produce highly specialized hot rolling mills designed to meet the specific needs of customers. In addition to hot rolling mills, Runxiang Machinery also manufactures a range of other steel rolling equipment, including cold rolling mills, straightening machines and other metal processing equipment. The company is committed to providing quality equipment that is reliable, efficient and cost-effective.

In summary, the working principle of a hot mill is a complex process that involves the use of advanced steel rolling equipment to produce high-quality metal products. Runxiang Machinery is a leading manufacturer of hot rolling mills and other steel rolling equipment, providing complete production supporting processes and integrated industrial chains for steelmaking. Their commitment to quality and innovation has made them an industry leader in hot rolling mill technology. Read the full article

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Induction Furnace Coil Design: The Heart of an Induction Furnaces

As the technology for heating and melting metals continues to develop, the use of induction furnaces is becoming more and more popular in various industries. One of the key components of an induction furnace is the induction furnace coil, which is responsible for the actual heating and melting of the metal. Therefore, induction furnace coil design is an important aspect of induction furnace technology. It determines the efficiency, reliability and overall effectiveness of the furnace. Well-designed induction furnace coils can significantly improve the quality and quantity of metal produced, reduce energy consumption, and keep maintenance and repair costs to a minimum.  

At Guangxi Runxiang Machinery Equipment Manufacturing Co., Ltd., we understand the importance of high-quality induction furnace coil design. As a national high-tech enterprise specializing in R&D, manufacturing, sales and service of steel rolling production line equipment, we have rich experience in designing and producing efficient and reliable induction furnace coils. The coil of the induction furnace is a spiral coil wound from a rectangular copper tube. It is used in conjunction with the frequency conversion power supply of the induction furnace, and the two are inseparable. As the load of the variable frequency power supply, the coil is responsible for generating an alternating magnetic field and inducing eddy currents in the heated metal. The eddy currents generate heat that melts the metal, allowing it to flow into a crucible for casting or further processing. There are different types of induction furnace coils, including intermediate frequency furnace coils and induction arc furnace coils, each with unique design considerations. The design of an induction furnace coil must take into account factors such as the size and shape of the metal being melted, the frequency of induction, the power capacity of the furnace, and the materials used in the coil construction.  

At Guangxi Runxiang Machinery Equipment Manufacturing Co., Ltd., our engineers and technicians have the expertise and knowledge to design induction furnace coils that meet our customers' unique requirements. We use advanced technologies and processes such as finite element analysis, computer-aided design and 3D printing to manufacture efficient, reliable and durable coils. Our induction furnace coil design process involves multiple stages of testing and validation to ensure that the coil is capable of high temperature operation and heavy duty. We also provide ongoing maintenance and support services to ensure the coils continue to operate at peak performance levels. In conclusion, the coil of an induction furnace is the core component of induction heating technology, and its design is crucial to the efficient and reliable operation of the furnace. Guangxi Runxiang Machinery Equipment Manufacturing Co., Ltd. has the expertise and experience to design and produce high-quality induction furnace coil that meet customers' unique requirements. We are committed to providing the best products and service to our customers, and we invite you to contact us for more information on our induction furnace coil design capabilities. Read the full article

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How To Master The Weld Metal Build Up Technique

Cladding is an essential part of welding. It refers to the process of depositing a special performance layer on the surface of parts welded with metal to achieve wear resistance, heat resistance and corrosion resistance. Weld metal build up is a cladding that welds metal to worn or damaged metal surfaces to restore or increase the size of the welded part. Build up welding is used in various industries including manufacturing, repair, aerospace, automotive and mining. The surfacing process helps rebuild damaged or worn metal components, reducing material costs and saving time by avoiding replacement. To master this welding technique, you need to understand the types of surfacing processes, the choice of materials, and the skills required for the job. There are two main types of surfacing processes: surfacing using wire feed and surfacing using powder feed. In the wire-fed process, a continuous wire is melted to create the weld, while in the powder-fed process, metal powder is melted to create the weld. The selection of welding materials is also very important in the surfacing process. There are many types of alloys that can be used for welding surfacing, each with unique characteristics suitable for specific applications. When selecting welding materials, consideration must be given to the application, type of base metal, desired cladding properties, and desired mechanical properties.

Skill is an important part of mastering the welding surfacing process. You need knowledge and experience in welding technology, equipment operation and welding principles. Welders must know how to prepare the base metal surface prior to cladding, manage heat input during welding, and control the welding arc. In addition, welders must understand how to select the proper cladding material, proper welding techniques and welding procedures to ensure high-quality welds. At Runxiang Machinery, our surfacing process is second to none. Our integrated industry chain of smelting, casting, metal heat treatment and machining ensures that we have the components and processes needed to provide high-quality hardfacing. In addition, our production process includes steel making, steel casting, heat treatment, machining and welding cladding. In summary, Weld metal build up is an essential technique for the fabrication and repair of metal components. To master this technology, you need to have the necessary knowledge and skills in welding technology, equipment operation, welding principles, etc. In addition, consideration must be given to selecting the appropriate welding consumables, paying attention to the application, base metal and desired cladding properties. At Runxiang Machinery, we provide high-quality hardfacing services that meet the requirements of various industrial fields. Read the full article

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What To Look For In a Custom Straightening Machine

When choosing a custom straightening machine, there are several important factors to consider. The machine you choose can have a major impact on the efficiency and quality of your production process, so it's important to choose wisely. One of the key factors to consider is the type of straightening machine you need. There are various types to choose from, including pipe straightening machine, steel bar straightener, and more. The type of machine you choose will depend on your specific operational needs. Another important factor to consider is the quality of the machine. You want to choose a machine that is durable and able to handle the demands of your production process. Look for a machine made of high-quality materials and known for its reliability.

Also, you want to choose a machine that is easy to use and maintain. Machinery that is difficult to use or requires frequent maintenance can slow down your production process and increase costs. Look for machines designed with ease of use and maintenance in mind. Guangxi Runxiang Machinery Equipment Manufacturing Co., Ltd. Is a company that provides customized industrial equipment including hot rolling mill straightening manufacturing. They are known for producing long-lasting, high-quality machines, and their integrated industrial chain means they oversee every step of the production process. This attention to detail ensures that their machines are of the highest quality and they offer a range of options to meet the specific needs of their customers. When it comes to Pipe Straightening Machine, it's important to choose wisely. Consider the type of machine you need, its quality, and ease of use and maintenance. By taking the time to choose the right machine, you can optimize your production process and achieve better results. As with any investment, do your research and choose a reputable company like Runxiang Machinery. Read the full article

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The Role Of Hydraulic Alligator Shear

Hydraulic alligator shear is a metallurgical term used to describe powerful cutting tools used in the metal recycling industry. This special tool is used to cut various shapes of steel and other metal structures in the cold state, so as to be used as qualified charge. Hydraulic crocodile shears are widely used in scrap steel mills, smelting and casting enterprises and other industrial environments. At Runxiang Machinery, we are committed to providing customers with high-quality hydraulic alligator shears. Our products are designed and manufactured in compliance with international standards, and we provide a full range of services from R&D design to manufacturing, installation and after-sales support. Our hydraulic alligator shears are designed with the latest technology to provide efficiency, speed and accuracy. They are powerful and durable, designed to withstand the harsh operating conditions of the metal recycling and smelting industries. Our machines provide reliable and efficient solutions for cutting heavy steel profiles and other metal structures. For metal recycling companies, a reliable hydraulic alligator shear is critical to ensuring they have the material they need to meet their production goals. The shearer's ability to cut metal structures of different shapes and sizes makes it an invaluable tool for these companies.

At Runxiang Machinery, we understand that customers are looking for reliable, efficient equipment. That's why we offer premium hydraulic alligator shear designed to meet their unique needs. We have a wide selection of machines, to ensure our customers find the right product for their specific requirements. Our machines are easy to operate with simple controls for precise cutting. They are designed to minimize downtime and maintain high levels of efficiency. We provide training and support to ensure our customers get the most out of their hydraulic alligator shears. In summary, hydraulic alligator shears play an important role in the metal recycling and smelting industry, providing a reliable and efficient solution for cutting heavy steel profiles and other metal structures. At Runxiang Machinery, we are committed to providing our customers with quality products and support. We look forward to working with you on your hydraulic alligator shear needs. Read the full article

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How Does A Continuous Casting Machine Work

Continuous casting is a revolutionary process used in the manufacturing industry to produce metal products such as copper, aluminum and steel of exceptional quality and consistency. The continuous casting machine (CCM) is a key piece of equipment in this process. It is an advanced automated industrial machine that transforms raw materials into semi-finished products with excellent dimensions and surface quality. So how does the continuous casting machine work? The continuous casting machine process goes through five key stages. First, raw materials such as copper, aluminum or steel are placed on a continuous casting machine. Guangxi Runxiang Machinery is a leading supplier of continuous casting machines with a production area of 20,000 square meters. The raw material is then melted in the machine and heated to a temperature above its melting point.

Next, the pouring liquid is poured into the casting mold of the continuous casting machine, which is usually in the shape of a long strip. This process, called pouring, is the third stage. The temperature of the pouring liquid plays a crucial role in its fluidity during the pouring process. Slight changes in temperature can have a major impact on the final product. The stage after pouring is cooling. The liquid metal in the mold begins to cool and solidify until it hardens into a long billet. The cooling process relies on cooling water passing through spray pipes around the machine to cool the mold and strip as it emerges. The final step in the continuous caster process is cutting. Long steel billets are cut to precise dimensions by high-precision automated machines. With modern technology, these machines optimize production output, minimize production waste and achieve maximum efficiency. Continuous casters are ideally suited for today's fast-paced manufacturing processes, where reliable, high-quality products need to be delivered in short periods of time. They have become a game-changing technology in the industry, replacing traditional casting methods. An important aspect that sets continuous casters apart is their ability to ensure products of consistent quality and size.

Guangxi Runxiang Machinery is a metallurgical machinery enterprise embodying innovation and excellence. Founded in 2015, the factory covers an area of 10,000 square meters and has more than 50 employees, including 5 core scientific researchers and 3 engineers. They offer a full line of continuous casters to meet the unique needs of their customers. Guangxi Runxiang has made significant contributions to the manufacturing industry, and its products have had a positive impact on countless economic fields. In conclusion, continuous casting machines are one of the most innovative and efficient methods of producing high-quality metal products. The continuous casting machine process includes melting, pouring, cooling and cutting. The capabilities offered by Guangxi Runxiang Machinery ensure you receive reliable products and excellent quality control. Investing in a continuous caster is a smart move for an industry that values quality, efficiency and timeliness. Read the full article

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Chill Roll Design-Ensuring Manufacturing Quality

Chilled roll is complex components with a very hard surface layer and are subjected to high stress due to their use in various applications such as rolling mill equipment. Therefore, Chill Rolls require a high manufacturing quality, which is necessary to ensure their effectiveness in use. Guangxi Runxiang Machinery specializes in R&D, manufacturing, sales and service of steel rolling production line equipment. Our company is a national high-tech enterprise with an experienced and professional team who tirelessly design and manufacture high-quality chill rolls. Our chill roll designs are at the forefront of the industry, ensuring our customers receive the highest quality product on the market. We pride ourselves on the ability of our chilled rolls to handle the stresses placed on them well, whether in steel production, grain milling or any other application that requires the use of chilled rolls.  

Our chill roll design process is tailor-made to ensure that each Chill Roll is custom-made to meet our clients' specific needs. We understand that each application is unique, so extra care is taken to design and manufacture chill rolls that meet the needs of each customer. Our team works with clients to understand their requirements, provide expert guidance, and manufacture chill rolls designed to deliver outstanding results. We utilize a variety of materials such as premium alloy steels to produce chilled roll that maintain their mechanical properties and resist deformation under extreme heat and pressure. We also employ advanced technology and workmanship to ensure our chilled rolls are of precise size, geometry and surface finish to deliver the highest possible performance. As one of the leading chill roll suppliers in the industry, we are always committed to quality and innovation. Our chill roll designs are constantly evolving and new technologies and advanced manufacturing processes are incorporated into our production lines. From steelmaking to steel casting, heat treatment, machining and surface treatment, we ensure our chilled rolls are manufactured to the highest possible standard. In summary, the design of the chilled roll is a key factor in ensuring the effectiveness of the cooling roll. At Guangxi Runxiang Machinery, we pride ourselves on providing high quality cold rolled rolls that meet our customers' specific requirements. We take a tailor-made approach to chill roll design, utilizing advanced manufacturing techniques and expert craftsmanship to deliver optimum performance. As an industry pioneer, we always strive to push the boundaries of chill roll design, always striving to exceed our customers' expectations. Read the full article

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Steel Rolling Mill High-Speed Zone Equipment Maintenance Procedures

1.Check the rolling mill daily for any strange noise, spot check the coupling for any strange noise and heating phenomenon, whether the coupling bolt is loose. 2.Check whether there is a large amount of oil leakage signs at the seal of pre-finish rolling transmission box and connection flange, slight leakage is allowed, but should be wiped clean, listen to whether there is a strange noise from the gears or bearings. 3.Check whether the oil and gas lubrication PU pipe of the pre-finishing roll box panel falls off to ensure that the lubrication points are in good lubrication condition.

4.Check every day whether there is oil leakage from the combination surface of roller box and cone box, if there is thin oil leakage, the double lip and O-ring seal should be replaced by optional machine. 5.Every day should check the gear box, try to listen to the gear and bearing for any strange sound, check the temperature of the box at the bearing. 6.Every shift inspection of lubricating oil pressure, flow, cooling water pressure, shall not be lower than the specified value. 7.For the finishing rolling unit 10 mills to be measured twice a shift sub-vibration, the required vibration value ≤ 4.5 mm / s, such as greater than this standard, need to pay attention to observe its development trend and promptly inform the shift manager. If the vibration remains stable in a higher range of vibration values, production can continue to maintain. 8.If there is a fault alarm of the finishing rolling unit during the production, the maintenance personnel should check carefully and confirm before agreeing to continue to turn. 9.If the roller box parameters are found to have seriously exceeded the standard during the inspection, the roller box should be replaced immediately. 10.Check daily whether the solenoid valve of the pinch feed roller is intact and whether the air and water lines are smooth, and deal with the problems found in time.

11.Check the wear of the inlet conduit of the spitting machine every day, and replace it in time when the wear is serious. 12.Check the vibration of the wire rolling mill during operation, if the vibration is found to increase, it should be stopped to check whether the installation of the spitting tube is secure, check whether the bolt connection between the wire plant spitting machine and the hollow shaft is tight. 13.Regularly check the wear of the live set of rollers and the smoothness of the oil and gas lubrication of the rollers on a daily basis, and promptly replace the maintenance for the specific situation. Read the full article

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Rolling Mill Equipment Maintenance Procedures

Rolling Mill Equipment Maintenance 1. Implementation of lubrication "five" principle (fixed point, fixed person, time, fixed quality, quantitative), to ensure that the lubrication parts of the mill in a good state of lubrication. 2. Check the mill adjustment device (press down, press up, axial positioning, side pressure) to ensure flexible adjustment and reliable positioning.

3. Check whether the beam guide device is intact, beam and mill, beam guide device, its fixed position is correct, solid. 4. Check whether the water cooling device is complete, whether the cooling water pipe is smooth, and whether the water pressure and water quantity are sufficient. 5. Each time before loading the rolls, you must add enough special grease to the bearing seat. Check the lubrication of the bearings frequently and make up the special grease at any time. 6. Check the sealing condition of the bearing seat to prevent water or iron oxide and other debris from falling into the bearing box. 7. Check the cooling water circuit, to ensure that the pipeline is smooth, good cooling, to ensure that the maximum temperature of the bearing does not exceed 50 ℃. 8. Check whether the bearing housing parts are complete and intact, and whether the connecting bolts are complete and sturdy, to prevent scurrying rollers. 9. Check whether the bearings are hot, vibrating, abnormal noise and other phenomena during the work, and deal with the problems in time. 10. The universal joint shaft should be checked for wear and tear at any time, and problems should be dealt with in time.

11. Check whether there is any abnormal sound during the work, and deal with the problem in time. 12. Check whether the safety cover and other safety devices are safe and reliable. Guangxi Runxiang Machinery Equipment Manufacturing Co., Ltd. was established in May 2021. It is a national high-tech enterprise specializing in R&D, manufacturing, sales and service of steel rolling production line equipment. At present, it has production supporting processes such as steelmaking, cast steel, heat treatment, mechanical processing, and surfacing welding, forming an integrated industrial chain of smelting, casting, metal heat treatment, and mechanical processing. Read the full article

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Heating Furnace Area Equipment Maintenance Procedures

1.Keep the heating furnace body clean,found that there are debris or dirty things on the furnace (including the top of the furnace) should be cleaned up in time. 2.Operators should always check whether the furnace wall and roof are in good condition, if found that the expansion seam is too large, string fire and other situations should be handled in time to avoid the expansion of the problem. 3.Billet into the furnace, pay attention not to load bent steel (deformation serious billet is not allowed to enter the furnace), timely turn steel, so as not to scratch the furnace wall. 4.Strictly implement the operating procedures to avoid burning the furnace roof at too high a temperature.

5.If the furnace wall is found to be partially burnt, it should be repaired by using the opportunity of furnace shutdown for maintenance. 6.After using two to three years, use the opportunity to repair the furnace body steel plate (package furnace steel plate) to paint once, so as to avoid corrosion and rusting of the furnace body steel plate. 7.Regularly (normal for half a year) to clean the furnace iron oxide. 8.The operator should always check the heating furnace fan, air ducts, steam pipes whether there is leakage, whether the valve is rusted phenomenon, found that the above problems are dealt with in a timely manner. 9.adhere to the normal point inspection and lubrication system of the fan. In strict accordance with the point check table settings for point inspection. Every shift on the fan parts point inspection, there are abnormalities in a timely manner and measures reported. 10.Check the vaporization cooling system, steam package pressure, water level and temperature display frequently to maintain the normal water level of the package, so that no water, no leaks, problems found in a timely manner. Read the full article

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Steel Rolling Mill Equipment Line Reducer Maintenance Procedures

Maintenance of steel rolling mill line reducer 1. Check the bolts of each department to ensure that the coupling is solid and reliable. 2. Often observe the work of the thin oil lubricating oil flow indicator, to ensure that the oil circuit is smooth, oil pressure, flow rate is sufficient, and the pipeline, valve, seal and the combination surface shall not have leakage. 3. Check the working condition of the bearings frequently, no heat, looseness and serious wear, abnormal noise, and deal with the problems in time. 4. Check the working condition of the gear, keep its transmission smoothly, often open the observation cover, check whether the tooth contact, wear is normal, whether each flat groove on the lubricating oil nozzle is all smooth, and deal with the problem in time.

5. Check the oil flow through the oil flow indicator at the inlet of each lubrication point, and set the value on site as follows. Rough rolling reducer: pressure relay pressure ≥ 0.15MPa for normal. Medium rolling reducer: pressure relay pressure ≥ 0.15MPa for normal. Pre-finishing reducer: pressure relay pressure ≥ 0.15MPa for normal. 6. Check the bearing (tile) temperature by hand touch, hand touch the tile seat or end cover for about 3 seconds without hot feeling is normal, the temperature is too high should be immediately reported to the workshop. 7. Use the hearing needle to contact the bearing (tile) seat to listen to the sound of movement, no abnormal noise is normal, the sound should be reported to the workshop immediately. Read the full article

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Maintenance Procedures For Hot Feed Area Of Steel Rolling Mill

1.The steel rolling mill needs to check the tightness of the hot feed rollers, inlet rollers base foot bolts, side guide plate fixing bolts and other connecting bolts every day, and if there is any loosening, it should be dealt with in time. 2.Check the lubrication condition of roller bearing seat and water-cooled water supply and drainage condition of roller bearing seat regularly, once a month. 3.Check the wear, cracks and hair pulling condition of the surface of the roller conveyor body once a week. 4.The gear box of reducer motor should be opened once every 6 months to check the gear wear and replace the lubricant, and the seal of gear box should also be replaced regularly.

5.Sweep the iron oxide under the hot feed roller conveyor, lifting table and furnace roller conveyor once a week. 6.Check the wear of the coupling of the hot feed roller conveyor and the furnace roller conveyor once every 3 months. 7.Check daily whether the foot bolt of the base of the steel pushing machine is loose; whether the steel pushing rod is deformed; whether the hydraulic cylinder should work sensitively and reliably without oil leakage, whether the hydraulic cylinder is synchronized and whether there is oil leakage, and if problems are found, deal with them in time. 8.Check daily whether the base bolts of the steel pushing machine are loose; the hydraulic cylinder should work reliably and without oil leakage, whether the hydraulic cylinder is synchronized, and whether there is oil leakage; whether the steel pushing trolley is running normally.

9.No loose connection bolts of the lifting table; normal movement of the reducer without noise, the oil level should not be lower than the lower limit of the oil mark; check the chain and sprocket to ensure smooth transmission, the chain is suitable for the degree of tightness, and often lubricate the chain. 10.Whether the flat pallet device is running smoothly, there is no shaking phenomenon, if the above problems should be promptly contacted the pincers to replace the paddle device; regular oil lubrication of the small shaft of the flat pallet device, once a week; 11.Is the cold billet table frame paddle claw damaged, is the rail pressure plate bolt tight, the hydraulic cylinder should work sensitive and reliable and no oil leakage, the hydraulic cylinder is synchronized, there is no oil leakage. Read the full article

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Types And Usage Methods Of Refractory Materials For Industrial Melting Furnaces

The main thermal equipment of the industrial melting furnace includes calcination and sintering furnace, electrolytic tank and smelting furnace. The lining of the firing zone of the rotary kiln is generally built with high-alumina bricks, and clay bricks can be used as the lining for other parts. A layer of refractory fiber felt is laid on the heat insulation layer near the furnace shell, and then a layer of lightweight bricks or lightweight bricks are built. Quality refractory castable pouring. The shell of the electrolytic cell is made of steel plate, and a layer of insulation board or refractory fiber felt is laid on the inside of the shell, then light bricks are built or light refractory castables are poured, and then clay bricks are built to form a non-working layer, and the electrolytic cell works The layer can only be made of carbon or silicon carbide refractory materials with good electrical conductivity, so as to resist the penetration of molten aluminum and the erosion of fluoride electrolyte. In the past, the working layer of the cell wall of the electrolytic cell was generally built with carbon blocks. In recent years, Japan and some countries in Western Europe have used silicon carbide bricks combined with silicon nitride to build them, and achieved good results.

The working layer at the bottom of the electrolytic cell is generally built of carbon blocks with small joints and filled with carbon paste to prevent the penetration of aluminum solution and enhance conductivity. The most commonly used aluminum smelting equipment is the reverberatory furnace. The furnace lining in contact with the aluminum solution is generally built with high-alumina bricks with an A1203 content of 80%-85%. When smelting high-purity metal aluminum, mullite bricks or corundum bricks should be used. In some factories, silicon carbide bricks combined with silicon nitride are used for masonry on the parts that are prone to erosion and wear, such as the slope of the hearth and the waste aluminum materials. Self-bonded or silicon nitride-bonded silicon carbide bricks are also used as linings with zircon bricks. For the blockage of the aluminum outlet, the effect of vacuum casting refractory fiber is better. Furnace linings that do not contact aluminum solution are generally built with clay bricks, clay refractory castables or refractory plastics. In order to speed up the melting speed and save energy, lightweight bricks, lightweight refractory castables and refractory fiber products are generally used as heat insulation layers.

Aluminum smelting induction crucible furnace is also commonly used equipment. The lining is generally made of high-alumina refractory castable or refractory ramming material with A1203 content of 70%-80%, and corundum refractory concrete is also used as lining. The molten aluminum flows out from the aluminum outlet of the furnace through the aluminum flow tank. The tank lining is generally made of silicon carbide bricks, and there are also prefabricated blocks of fused silica sand. If the prefabricated block is used as a tank lining, the surface should be coated with fused silica sand or Use high alumina cement fused silica sand refractory castable as protective layer. Read the full article

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H-Beam Production Process

Generally, small and medium-sized (H400×200 and below) H-beams mostly use square billets and rectangular billets, and larger-sized (H400×200 and above) H-beams mostly use special-shaped billets, and continuous casting billets can be used for both rectangular and special-shaped billets. After being weighed, the billet from continuous casting is loaded into a step-by-step (or pusher type, there are relatively few pusher furnaces used to produce section steel) heating furnace and heated to 1200-1250°C to be released from the furnace. Most of the walking heating furnaces adopt double preheating burners arranged up and down, which can provide the best temperature control for billets of different specifications and save fuel.

After the billet comes out of the furnace, it is first descaled with 10-25MPa high-pressure water, and then sent to the billet mill for rolling. The blanking machine is generally a two-roll reversible rolling mill (there is also a three-roll rolling mill for small steel, but the process limitation is not conducive to the production organization), and the blanking machine needs to be rolled for about 5 to 13 passes, and then the rolled piece The hot saw is only responsible for cutting off the unformed part of the head, but the flying shear can cut the head, segment and tail. The rolled pieces after head cutting are sent to the finishing rolling mill for rolling. The finishing rolling of small-sized section steel of major domestic manufacturers adopts the form of continuous rolling, and the finishing rolling of large-size section steel is reversible rolling. After finishing rolling, it is generally sent directly to the cooling bed for cooling, but there are also sections that are segmented before the cooling bed or cut after the cooling bed. Due to the relatively large difference between the thickness of the legs and the thickness of the waist of large-sized section steel, if it is placed flat, the cooling speed of the waist and legs is inconsistent, causing waves at the waist, so vertical cooling is generally used. However, the mainstream manufacturers of small-sized H-beams all adopt stepping tooth cooling beds, which are placed obliquely on the rack. Using stepping tooth cooling beds can not only reduce the defects caused by the original chain hauling mechanism, but also easily control the cooling of steel speed. The cooled H-beam is sent to the straightening machine for straightening. Due to the large section modulus of H-beams, 8-roll, 9-roll or 10-roll straightening machines are generally used for straightening, and the maximum distance between straightening rollers can reach 2200mm. After being straightened, the steel is sent to the marshalling stand for grouping and waiting for sawing. After being cut by a cold saw according to a fixed length, it is sent to the inspection table to check the size, shape and surface quality, and then sorted, stacked and bundled. sent to the warehouse. For unqualified products, according to the type of defect, corresponding re-straightening, grinding, welding repair and other treatments will be carried out, and then they will enter the corresponding quality inspection program and then be classified into storage after passing the inspection. In order to improve the operating rate of the rolling mill and reduce the roll changing time, almost all manufacturers adopt a quick roll changing system, that is, the rolls required for the next variety are assembled in advance while producing. When changing rolls, just pull out all the original racks and replace them with new racks that have been installed. Each frame is equipped with a quick connector panel, which includes cooling water, hydraulic pressure, thin oil and dry oil pipe joints and positioning connection devices for connecting rods. The device is easy and fast to disassemble and connect, and the entire roll changing time is about 10-20 minutes. According to the roll changing experience of small steel, the overall roll changing time is generally about 45-70 minutes. Read the full article