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Galvanized pipe making machines, factors affecting the online bright heat treatment of stainless steel welded pipes (3)
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【概要描述】Galvanized pipe making machines is widely used in the production of stainless steel welded pipes for large-scale power station generator sets. Most of the production of stainless steel welded pipes in my country is the introduction or use of advanced foreign equipment and technology.
Galvanized pipe making machines, factors affecting the online bright heat treatment of stainless steel welded pipes (3)
【概要描述】Galvanized pipe making machines is widely used in the production of stainless steel welded pipes for large-scale power station generator sets. Most of the production of stainless steel welded pipes in my country is the introduction or use of advanced foreign equipment and technology.
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- Release time：2022-01-20 11:30
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Detail
Galvanized pipe making machines is widely used in the production of stainless steel welded pipes for large-scale power station generator sets. Most of the production of stainless steel welded pipes in my country is the introduction or use of advanced foreign equipment and technology.
Heat treatment is an important process to ensure the performance of stainless steel welded pipes. One of its purposes is to eliminate the residual stress generated during the cold working process of coiling the stainless steel strip into a tube and the welding process. The second purpose is to perform solution treatment to make the welded steel pipe The carbides produced at this time are all solid-dissolved into austenite, and then quickly cooled down to prevent the austenite from precipitation or phase change during the cooling process. At present, continuous roller hearth furnaces are generally used in the heat treatment of stainless steel pipes using galvanized pipe making machines in my country. Since no protective atmosphere is used, and producer gas is used as fuel, then pickling is used to remove the heat generated on the surface of the steel pipe after heat treatment. Oxide skin corrodes the steel pipe surface and causes environmental pollution. Some developed countries have now widely used online bright heat treatment technology. Since it can eliminate the traditional off-line heat treatment and pickling process, it has the advantages of increasing productivity and reducing labor intensity. Therefore, my country should vigorously promote the production of stainless steel welded pipes with protective atmosphere control. System development of bright heat treatment technology. The author analyzed some of the problems that occurred during the on-line bright heat treatment of the welded pipe production line introduced in my country, in order to improve the product quality and yield rate.
The factors that affect online bright heat treatment can be divided into six kinds.We introduce the influence of heat treatment furnace sealing and other factors on bright heat treatment.
⑤ The influence of heat treatment furnace sealing
The heat treatment furnace should be closed and isolated from the outside air. Especially where the welded pipe enters the furnace body mouth and the welded pipe exits the furnace body mouth, the sealing rings in these places are particularly prone to wear and should be checked frequently and replaced in time. In order to prevent micro-leakage, the protective gas in the furnace must maintain a certain positive pressure. If it is a hydrogen protective gas, it is generally required to be greater than the standard atmospheric pressure.
⑥The influence of other factors on bright heat treatment
During the working process, the welding must be continuous and stable. When there are holes or seams in the welded pipe, the work of the heat treatment furnace must be stopped, otherwise the welded pipe may be burnt in the furnace. In addition, the welding effect is not good, and the air or moisture sprayed from the welding hole will destroy the protective atmosphere in the furnace and affect the bright heat treatment effect.
Attention should be paid to the adjustment of the power of the heat treatment furnace when the operating speed of the production line changes. When the operating speed of the production line increases, the power of the heat treatment furnace must be increased accordingly to ensure its heating temperature. When the operating speed of the production line decreases, the power of the heat treatment furnace must be reduced first to prevent the welded pipe from being burnt due to excessive heating temperature.
The stainless steel welded pipe adopts the non-oxidation online bright heat treatment technology with shielding gas not only improves the quality of the welded pipe, but also eliminates the traditional off-line heat treatment and pickling process. The treated welded pipe can get the best corrosion resistance and lower strength. And the plasticity is good, which can greatly meet the needs of industrial pipes such as condenser pipes and chemical pipes.
The main factors affecting the on-line bright heat treatment of stainless steel welded pipe made by galvanized pipe making machines are ①The influence of heat treatment temperature. ②The influence of protective gas. ③The influence of cooling temperature. ④The influence of welded pipe surface. ⑤The influence of heat treatment furnace sealing. ⑥The influence of other factors on bright heat treatment.
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Answer: Three core advantages:
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The Role of Roller Conveyor Motors in Used Pipe Welding Machines
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Used pipe welding machines refer to welding equipment that has been previously used and is resold, typically for producing welded steel pipes. In used pipe welding machines, the roller conveyor motor is a critical component whose role runs through the entire production process, directly affecting the equipment's operational efficiency, processing accuracy, and product quality. Below is an analysis of the main functions and importance of roller conveyor motors in used pipe welding machines.
1. Transporting Pipe Materials
The primary function of the roller conveyor motor is to drive the rollers, transporting pipe materials from one process to the next. During pipe welding production, the pipe material needs to go through multiple stages, including uncoiling, forming, welding, cooling, sizing, and cutting. The roller conveyor motor ensures smooth and continuous movement of the pipe material by controlling the rotation of the rollers, preventing jams or deviations.
2. Ensuring Production Continuity
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3. Controlling Pipe Material Speed
The roller conveyor motor controls the speed of the rollers through a speed regulation device, thereby adjusting the transportation speed of the pipe material. During the welding process, the transportation speed of the pipe material must match the welding speed to ensure weld quality. The precise control capability of the roller conveyor motor directly affects welding results and production efficiency.
4. Improving Processing Accuracy
The smooth operation of the roller conveyor motor helps reduce vibrations and deviations during material transportation, thereby improving processing accuracy. In used pipe welding machines, the performance of the roller conveyor motor may decline due to equipment aging, so regular inspection and maintenance are necessary to ensure its operational precision.
5. Adapting to Multiple Specifications
Roller conveyor motors are typically equipped with speed regulation functions, allowing them to adapt to the production of pipes with different specifications. For example, when producing thin-walled and thick-walled pipes, the motor needs to adjust its speed to meet different processing requirements. This flexibility enables used pipe welding machines to fulfill diverse production needs.
6. Energy Saving and Efficiency
Modern roller conveyor motors are often designed for high efficiency and energy savings, reducing energy consumption and improving production efficiency. In used pipe welding machines, if the motor is aging or its performance declines, energy consumption may increase. Therefore, it is recommended to upgrade or replace the motor to enhance the overall energy efficiency of the equipment.
7. Reducing Equipment Wear
The smooth operation of the roller conveyor motor can reduce wear on other components of the equipment. For instance, if the motor operates unstably, it may cause premature wear on rollers, bearings, and other parts, increasing maintenance costs. Thus, in used pipe welding machines, the condition of the roller conveyor motor directly impacts the equipment's service life.
8. Automation Control
In modern pipe welding production lines, roller conveyor motors are often integrated with PLCs (Programmable Logic Controllers) and sensors to achieve automated control. In used pipe welding machines, if the roller conveyor motor supports automation functions, it can significantly improve production efficiency and product quality.
9. Safety
The stable operation of the roller conveyor motor is also closely related to production safety. If the motor fails, it may lead to material pile-ups, equipment jams, or even injuries. Therefore, in used pipe welding machines, the safety of the roller conveyor motor cannot be overlooked.
10. Maintenance and Care
In used pipe welding machines, the maintenance of the roller conveyor motor is particularly important. Since the equipment has been used for a certain period, the motor's performance may have declined. Regularly checking the motor's insulation, lubrication, and operating temperature can extend its service life and ensure stable equipment operation.
Conclusion
The roller conveyor motor plays a vital role in used pipe welding machines, with its functions covering material transportation, speed control, processing accuracy, energy efficiency, and more. For used equipment, the condition of the roller conveyor motor directly affects the overall performance and production efficiency of the equipment. Therefore,
Used pipe welding machines refer to welding equipment that has been previously used and is resold, typically for producing welded steel pipes. In used pipe welding machines, the roller conveyor motor is a critical component whose role runs through the entire production process, directly affecting the equipment's operational efficiency, processing accuracy, and product quality. Below is an analysis of the main functions and importance of roller conveyor motors in used pipe welding machines.
1. Transporting Pipe Materials
The primary function of the roller conveyor motor is to drive the rollers, transporting pipe materials from one process to the next. During pipe welding production, the pipe material needs to go through multiple stages, including uncoiling, forming, welding, cooling, sizing, and cutting. The roller conveyor motor ensures smooth and continuous movement of the pipe material by controlling the rotation of the rollers, preventing jams or deviations.
2. Ensuring Production Continuity
In used pipe welding machines, the stable operation of the roller conveyor motor is key to ensuring production continuity. If the motor fails, it may cause interruptions in material transportation, affecting the efficiency of the entire production line. Therefore, the reliability and durability of the roller conveyor motor are particularly important, especially in used equipment, where regular maintenance and care are essential.
3. Controlling Pipe Material Speed
The roller conveyor motor controls the speed of the rollers through a speed regulation device, thereby adjusting the transportation speed of the pipe material. During the welding process, the transportation speed of the pipe material must match the welding speed to ensure weld quality. The precise control capability of the roller conveyor motor directly affects welding results and production efficiency.
4. Improving Processing Accuracy
The smooth operation of the roller conveyor motor helps reduce vibrations and deviations during material transportation, thereby improving processing accuracy. In used pipe welding machines, the performance of the roller conveyor motor may decline due to equipment aging, so regular inspection and maintenance are necessary to ensure its operational precision.
5. Adapting to Multiple Specifications
Roller conveyor motors are typically equipped with speed regulation functions, allowing them to adapt to the production of pipes with different specifications. For example, when producing thin-walled and thick-walled pipes, the motor needs to adjust its speed to meet different processing requirements. This flexibility enables used pipe welding machines to fulfill diverse production needs.
6. Energy Saving and Efficiency
Modern roller conveyor motors are often designed for high efficiency and energy savings, reducing energy consumption and improving production efficiency. In used pipe welding machines, if the motor is aging or its performance declines, energy consumption may increase. Therefore, it is recommended to upgrade or replace the motor to enhance the overall energy efficiency of the equipment.
7. Reducing Equipment Wear
The smooth operation of the roller conveyor motor can reduce wear on other components of the equipment. For instance, if the motor operates unstably, it may cause premature wear on rollers, bearings, and other parts, increasing maintenance costs. Thus, in used pipe welding machines, the condition of the roller conveyor motor directly impacts the equipment's service life.
8. Automation Control
In modern pipe welding production lines, roller conveyor motors are often integrated with PLCs (Programmable Logic Controllers) and sensors to achieve automated control. In used pipe welding machines, if the roller conveyor motor supports automation functions, it can significantly improve production efficiency and product quality.
9. Safety
The stable operation of the roller conveyor motor is also closely related to production safety. If the motor fails, it may lead to material pile-ups, equipment jams, or even injuries. Therefore, in used pipe welding machines, the safety of the roller conveyor motor cannot be overlooked.
10. Maintenance and Care
In used pipe welding machines, the maintenance of the roller conveyor motor is particularly important. Since the equipment has been used for a certain period, the motor's performance may have declined. Regularly checking the motor's insulation, lubrication, and operating temperature can extend its service life and ensure stable equipment operation.
Conclusion
The roller conveyor motor plays a vital role in used pipe welding machines, with its functions covering material transportation, speed control, processing accuracy, energy efficiency, and more. For used equipment, the condition of the roller conveyor motor directly affects the overall performance and production efficiency of the equipment. Therefore,
In the production process of used welded pipe machines, the expanding machine is a crucial piece of equipment
Time of issue : 2025-03-04
1. Diameter Adjustment
After the welding of steel pipes is completed, due to thermal and mechanical stresses during the welding process, the diameter of the pipes may become uneven or fail to meet standards. The expanding machine adjusts the diameter of the pipes through mechanical or hydraulic means, ensuring it meets design specifications. This process not only improves the dimensional accuracy of the pipes but also ensures their interchangeability and compatibility in use.
2. Shape Correction
During the welding process, steel pipes may develop defects such as ovality, bending, or other shape irregularities. The expanding machine corrects these defects by applying uniform pressure, making the cross-section of the pipes more circular and thereby enhancing their overall quality and appearance.
3. Improvement of Mechanical Properties
During the expanding process, the inner and outer surfaces of the pipes are subjected to uniform stress, which helps eliminate residual stresses generated during welding and improves the mechanical properties of the pipes. For example, expanding can enhance the compressive and bending strength of the pipes, making them more suitable for use in high-stress environments.
4. Surface Quality Enhancement
The expanding machine can also polish the inner and outer surfaces of the pipes to some extent during the expanding process, removing burrs and oxide scales generated during welding. This improves the surface quality of the pipes, which is particularly important for applications requiring high surface quality, such as fluid or gas transportation.
5. Increased Production Efficiency
In the production line of used welded pipe machines, the use of an expanding machine can significantly improve production efficiency. Through automated or semi-automated expanding operations, manual intervention is reduced, production cycles are shortened, and production costs are lowered. Additionally, the high-precision operation of the expanding machine reduces the scrap rate, enhancing the overall efficiency of the production line.
6. Adaptability to Multiple Specifications
Expanding machines typically feature adjustable expanding ranges and pressure settings, allowing them to accommodate the production of pipes with different diameters and wall thicknesses. This flexibility enables used welded pipe machines to produce pipes of various specifications, meeting the diverse needs of customers.
7. Extended Equipment Lifespan
In used welded pipe machines, the use of an expanding machine can also extend the lifespan of other equipment. By correcting the shape and dimensions of the pipes, wear and damage to subsequent processing equipment are reduced, thereby prolonging the lifespan of the entire production line.
8. Environmental Protection and Energy Efficiency
Modern expanding machines often incorporate energy-saving designs and eco-friendly materials, reducing energy consumption and environmental pollution. In the production process of used welded pipe machines, the use of high-efficiency expanding machines not only lowers production costs but also aligns with the environmental requirements of modern industry.
Conclusion
The role of the expanding machine in used welded pipe machines cannot be overlooked. It not only improves the dimensional accuracy and shape quality of steel pipes but also enhances their mechanical properties, improves surface quality, boosts production efficiency, adapts to multiple specifications, extends equipment lifespan, and meets environmental and energy-saving requirements. Therefore, the expanding machine is an indispensable key piece of equipment in the production process of used welded pipe machines.
From the above analysis, it is clear that the expanding machine plays multiple roles and holds significant importance in used welded pipe machines. Whether from the perspective of product quality, production efficiency, or economic benefits, the expanding machine is a critical component.
For more information, please pay attention to the website of Jinyujie Mechanical and Electrical Used Pipe Mill Supplier：www.usedpipemill.com
JinYuJie-Used Pipe Mills Supplier（Please click the link→) :second-hand pipe mill
1. Diameter Adjustment
After the welding of steel pipes is completed, due to thermal and mechanical stresses during the welding process, the diameter of the pipes may become uneven or fail to meet standards. The expanding machine adjusts the diameter of the pipes through mechanical or hydraulic means, ensuring it meets design specifications. This process not only improves the dimensional accuracy of the pipes but also ensures their interchangeability and compatibility in use.
2. Shape Correction
During the welding process, steel pipes may develop defects such as ovality, bending, or other shape irregularities. The expanding machine corrects these defects by applying uniform pressure, making the cross-section of the pipes more circular and thereby enhancing their overall quality and appearance.
3. Improvement of Mechanical Properties
During the expanding process, the inner and outer surfaces of the pipes are subjected to uniform stress, which helps eliminate residual stresses generated during welding and improves the mechanical properties of the pipes. For example, expanding can enhance the compressive and bending strength of the pipes, making them more suitable for use in high-stress environments.
4. Surface Quality Enhancement
The expanding machine can also polish the inner and outer surfaces of the pipes to some extent during the expanding process, removing burrs and oxide scales generated during welding. This improves the surface quality of the pipes, which is particularly important for applications requiring high surface quality, such as fluid or gas transportation.
5. Increased Production Efficiency
In the production line of used welded pipe machines, the use of an expanding machine can significantly improve production efficiency. Through automated or semi-automated expanding operations, manual intervention is reduced, production cycles are shortened, and production costs are lowered. Additionally, the high-precision operation of the expanding machine reduces the scrap rate, enhancing the overall efficiency of the production line.
6. Adaptability to Multiple Specifications
Expanding machines typically feature adjustable expanding ranges and pressure settings, allowing them to accommodate the production of pipes with different diameters and wall thicknesses. This flexibility enables used welded pipe machines to produce pipes of various specifications, meeting the diverse needs of customers.
7. Extended Equipment Lifespan
In used welded pipe machines, the use of an expanding machine can also extend the lifespan of other equipment. By correcting the shape and dimensions of the pipes, wear and damage to subsequent processing equipment are reduced, thereby prolonging the lifespan of the entire production line.
8. Environmental Protection and Energy Efficiency
Modern expanding machines often incorporate energy-saving designs and eco-friendly materials, reducing energy consumption and environmental pollution. In the production process of used welded pipe machines, the use of high-efficiency expanding machines not only lowers production costs but also aligns with the environmental requirements of modern industry.
Conclusion
The role of the expanding machine in used welded pipe machines cannot be overlooked. It not only improves the dimensional accuracy and shape quality of steel pipes but also enhances their mechanical properties, improves surface quality, boosts production efficiency, adapts to multiple specifications, extends equipment lifespan, and meets environmental and energy-saving requirements. Therefore, the expanding machine is an indispensable key piece of equipment in the production process of used welded pipe machines.
From the above analysis, it is clear that the expanding machine plays multiple roles and holds significant importance in used welded pipe machines. Whether from the perspective of product quality, production efficiency, or economic benefits, the expanding machine is a critical component.
For more information, please pay attention to the website of Jinyujie Mechanical and Electrical Used Pipe Mill Supplier：www.usedpipemill.com
JinYuJie-Used Pipe Mills Supplier（Please click the link→) :second-hand pipe mill
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Company address:No. A99, East Lecong Avenue, Lecong Town, Foshan City, Guangdong Province
Wechat: 13392281699
Email: zty@usedpipemill.com
Company address:No. A99, East Lecong Avenue, Lecong Town, Foshan City, Guangdong Province
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