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Analysis of the welding heat affected zone of the used roll forming machine
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- Release time：2023-04-21 11:30
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【概要描述】When the used roll forming machine is used to make pipes, a complete high-frequency weld will appear, and the formation of a complete high-frequency weld is composed of two areas, the fusion zone and the heat-affected zone.
Analysis of the welding heat affected zone of the used roll forming machine
【概要描述】When the used roll forming machine is used to make pipes, a complete high-frequency weld will appear, and the formation of a complete high-frequency weld is composed of two areas, the fusion zone and the heat-affected zone.
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- Release time：2023-04-21 11:30
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Detail
When the used roll forming machine is used to make pipes, a complete high-frequency weld will appear, and the formation of a complete high-frequency weld is composed of two areas, the fusion zone and the heat-affected zone. The fusion zone is a narrow weld. Welding theory and practice point out that the quality of welding depends not only on the weld, but also on the welding heat-affected zone; sometimes there are more problems in the heat-affected zone than the weld, which is more complicated. It is especially obvious when the strength of alloy steel pipe is used. Therefore, it is of great significance to study the changes in the structure and properties of the heat-affected zone tube blank for the strength of the weld and the quality of the welded pipe.
The structure and morphology of the welding heat-affected zone is closely related to the carbon equivalent of the steel. The welding heat-affected zone of the used roll forming machine belongs to the low-carbon equivalent category. Crystallization zone, recrystallization zone and aging embrittlement zone.
(1) Overheating zone. The temperature is between 1400 and 1100 °C, and the closer to the fusion zone (weld), the higher the temperature; it is manifested that some refractory points such as carbides and oxides dissolve into austenite at the solidus, and austenite grains thick. Coarse austenite is easy to form superheated Widmanite structure during cooling, resulting in reduced toughness.
(2) Phase change recrystallization zone. The temperature is between 1100~850°C, above the Ac3 line; the recrystallization phase transition occurs when heated, so that the grains are refined; it is equivalent to the normalized structure of low-carbon steel, and has good comprehensive mechanical properties.
(3) Incomplete recrystallization zone. When the temperature is between 850 and 700 °C, only part of the metal in this region undergoes recrystallization phase transformation; it is the coexistence and mixing of the original ferrite coarse grain and fine grain region, and the mechanical properties are poor.
(4) Recrystallization zone. When the temperature is between 700 and 500°C, the internal structure of the metal does not change after heating, only the shape of the grain changes; it is an equiaxed ferrite grain, the strength and hardness are lower than that of the base metal, and the plasticity and toughness are improved. is the softening zone of the weld.
(5) Aging embrittlement zone. When the temperature is between 500 and room temperature, the metal structure is close to the base metal; the longer the placement time, the closer the structure and properties are to the base metal.
Through the analysis of the welding heat affected zone of the used roll forming machine, not only can the welding process be better improved, but also it is helpful to understand the formation and distribution of welding stress on the welded pipe.
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Apply of Bedroom screw looping
Time of issue : 2024-12-03
1.Basic construction: A typical roller type bedroom spiral hoop usually consists of two sets of rollers that form a spiral shaped channel for guiding and supporting the metal strip.
2.Operation principle: When the metal strip passes through the looper, the strip is guided and supported in the spiral path. Due to the spiral structure of the looper, the strip can be smoothly transmitted under the condition of uneven strip speed to ensure the normal progress of the subsequent process.
3.Commissioning and maintenance: Used equipment needs to be inspected and maintained in detail before use. Includes:
Cleaning: Remove oil, dust and so on from the surface.
Lubrication: Check and add lubricating oil to ensure the normal operation of each transmission component.
Calibration: Ensure that the neutralization pressure of the roller is set correctly.
Replacement parts: Check for wear and replace necessary parts.
4.Application process: In the process of use, it is necessary to pay attention to the operation specifications, monitor the operating status of the equipment, and adjust the equipment parameters in time to meet the strip specifications and process requirements. In addition, it is also necessary to pay attention to safe operation to prevent accidents.
Through the above methods, the used roller bedroom spiral looper can continue to play its function and provide support for metal processing production.
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.Basic construction: A typical roller type bedroom spiral hoop usually consists of two sets of rollers that form a spiral shaped channel for guiding and supporting the metal strip.
2.Operation principle: When the metal strip passes through the looper, the strip is guided and supported in the spiral path. Due to the spiral structure of the looper, the strip can be smoothly transmitted under the condition of uneven strip speed to ensure the normal progress of the subsequent process.
3.Commissioning and maintenance: Used equipment needs to be inspected and maintained in detail before use. Includes:
Cleaning: Remove oil, dust and so on from the surface.
Lubrication: Check and add lubricating oil to ensure the normal operation of each transmission component.
Calibration: Ensure that the neutralization pressure of the roller is set correctly.
Replacement parts: Check for wear and replace necessary parts.
4.Application process: In the process of use, it is necessary to pay attention to the operation specifications, monitor the operating status of the equipment, and adjust the equipment parameters in time to meet the strip specifications and process requirements. In addition, it is also necessary to pay attention to safe operation to prevent accidents.
Through the above methods, the used roller bedroom spiral looper can continue to play its function and provide support for metal processing production.
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
The mold types and types of used precision high-frequency welded pipe units
Time of issue : 2024-11-30
1.Molding die: used to shape steel strip into pipe. This type of mold usually consists of multiple sets of rollers, and the forming process is completed by gradual pressure.
2.Welding die: Specially used for high-frequency welding process to ensure the quality and accuracy of the weld. These molds are often used to ensure that the joint parts of the pipe are precisely aligned and soldered securely.
3.Sizing die: used for further sizing and straightening of the pipe after welding to ensure the dimensional accuracy of the final product. These molds allow the pipe to achieve the desired diameter and roundness.
4.Shaping mold: used to shape the welded pipe that has been formed to ensure that it meets the specified size and shape requirements.
5.Straightening mold: used to straighten the welded pipe and correct the bending and deformation of the pipe to ensure its flatness in the production process.
6.Surface treatment mold: These molds are used to treat the surface of the pipe, such as deburring, polishing, etc., to ensure the smooth and smooth surface of the pipe.
7.Cutting mold: used to cut the produced welded pipe to the required length according to demand. The main function of these molds is to ensure that the cutting is straight and high precision.
Each mold plays an important role in the production process, ensuring the quality and production efficiency of the welded pipe. According to the specific use and needs, different types of molds can be combined to achieve the best production results.
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.Molding die: used to shape steel strip into pipe. This type of mold usually consists of multiple sets of rollers, and the forming process is completed by gradual pressure.
2.Welding die: Specially used for high-frequency welding process to ensure the quality and accuracy of the weld. These molds are often used to ensure that the joint parts of the pipe are precisely aligned and soldered securely.
3.Sizing die: used for further sizing and straightening of the pipe after welding to ensure the dimensional accuracy of the final product. These molds allow the pipe to achieve the desired diameter and roundness.
4.Shaping mold: used to shape the welded pipe that has been formed to ensure that it meets the specified size and shape requirements.
5.Straightening mold: used to straighten the welded pipe and correct the bending and deformation of the pipe to ensure its flatness in the production process.
6.Surface treatment mold: These molds are used to treat the surface of the pipe, such as deburring, polishing, etc., to ensure the smooth and smooth surface of the pipe.
7.Cutting mold: used to cut the produced welded pipe to the required length according to demand. The main function of these molds is to ensure that the cutting is straight and high precision.
Each mold plays an important role in the production process, ensuring the quality and production efficiency of the welded pipe. According to the specific use and needs, different types of molds can be combined to achieve the best production results.
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
Roll forming machine is an important manufacturing equipment
Time of issue : 2024-11-29
1.Initial development stage
In the early stages of roll forming technology, machining mainly relies on manual operation and simple mechanical devices. This kind of equipment has simple structure and is difficult to meet the production needs of complex profiles.
2.Mechanization improvement
With the advance of the Industrial Revolution, the degree of mechanization has gradually increased. Roller forming machines began to be equipped with electric motors and mechanical transmission systems, which increased production efficiency and output.
3.Automation and CNC technology
In the late 20th century, the development of computer technology led to the introduction of automation and numerical control technology (CNC). CNC roller forming machine can realize high-precision and high-efficiency automatic processing through programming, reducing labor costs and improving product quality.
4.Advanced control system
The new generation of roll forming machines introduces advanced control systems, including PLC (Programmable logic controller) and HMI (human machine interface), making operation easier and more intelligent. At the same time, the development of sensor technology also provides support for real-time monitoring and precise control.
5.High strength materials and new coatings
Modern roller forming machines use high-strength materials and advanced coating technology on roller wheels and other key components, which not only improves the durability and service life of the equipment, but also better ADAPTS to the processing needs of high-strength and high-hardness materials.
6.Modularity and flexibility
In recent years, modular design has become a significant trend in roll forming machines. This design allows the equipment to have greater flexibility, can quickly adjust and replace different modules according to production needs, to adapt to diverse, customized production requirements.
7.Intelligent manufacturing and Industrial Internet
With the advancement of Industry 4.0, intelligent manufacturing and industrial Internet technologies are gradually applied to roll forming machines. Through data acquisition, analysis and remote monitoring, intelligent equipment operation and production management are realized, improving the efficiency and reliability of the entire manufacturing process.
8.Environmental protection and energy saving technology
Environmental protection and energy saving technologies also play an important role in modern roll forming machines. Reduce energy consumption and environmental pollution through optimized design, use of energy-efficient motors and energy recovery devices, and achieve sustainable development.
In short, roll forming machine technology in the continuous innovation and development, through the use of new materials, new processes and intelligent technology, greatly improve the production capacity and product quality, to meet the manufacturing needs of different industries.
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.Initial development stage
In the early stages of roll forming technology, machining mainly relies on manual operation and simple mechanical devices. This kind of equipment has simple structure and is difficult to meet the production needs of complex profiles.
2.Mechanization improvement
With the advance of the Industrial Revolution, the degree of mechanization has gradually increased. Roller forming machines began to be equipped with electric motors and mechanical transmission systems, which increased production efficiency and output.
3.Automation and CNC technology
In the late 20th century, the development of computer technology led to the introduction of automation and numerical control technology (CNC). CNC roller forming machine can realize high-precision and high-efficiency automatic processing through programming, reducing labor costs and improving product quality.
4.Advanced control system
The new generation of roll forming machines introduces advanced control systems, including PLC (Programmable logic controller) and HMI (human machine interface), making operation easier and more intelligent. At the same time, the development of sensor technology also provides support for real-time monitoring and precise control.
5.High strength materials and new coatings
Modern roller forming machines use high-strength materials and advanced coating technology on roller wheels and other key components, which not only improves the durability and service life of the equipment, but also better ADAPTS to the processing needs of high-strength and high-hardness materials.
6.Modularity and flexibility
In recent years, modular design has become a significant trend in roll forming machines. This design allows the equipment to have greater flexibility, can quickly adjust and replace different modules according to production needs, to adapt to diverse, customized production requirements.
7.Intelligent manufacturing and Industrial Internet
With the advancement of Industry 4.0, intelligent manufacturing and industrial Internet technologies are gradually applied to roll forming machines. Through data acquisition, analysis and remote monitoring, intelligent equipment operation and production management are realized, improving the efficiency and reliability of the entire manufacturing process.
8.Environmental protection and energy saving technology
Environmental protection and energy saving technologies also play an important role in modern roll forming machines. Reduce energy consumption and environmental pollution through optimized design, use of energy-efficient motors and energy recovery devices, and achieve sustainable development.
In short, roll forming machine technology in the continuous innovation and development, through the use of new materials, new processes and intelligent technology, greatly improve the production capacity and product quality, to meet the manufacturing needs of different industries.
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
The cost of controlling a used pipe straightener
Time of issue : 2024-11-28
1.Equipment procurement cost: The purchase price of second-hand equipment is usually lower than that of new equipment, but factors such as the service life, brand, model and functional perfection of the equipment need to be considered.
2.Transportation and installation costs: The cost of transporting the equipment from the place of purchase to the place of use and installing it, including handling, installation and calibration costs.
3.Maintenance and repair costs: Since the used equipment has been used, more maintenance and repair may be required. Therefore, regular maintenance costs and expected repair costs should be considered.
4.Operating costs: includes electricity and other energy consumption, as well as operator salaries and training costs.
5.Spare parts and consumables cost: Used equipment may require more frequent replacement of spare parts and consumables, which will also increase costs.
6.Upgrade and retrofit costs: In order to meet production needs, it may be necessary to upgrade or retrofit used equipment, and these costs need to be taken into account.
7.Warranty and after-sales service cost: Used equipment may have no warranty or a short warranty period, so after-sales service costs need to be taken into account.
In order to effectively control the cost of the second-hand pipe straightener, it is recommended to carry out a comprehensive cost accounting and benefit analysis, select the second-hand equipment with good reputation and good technical conditions, and do a detailed maintenance plan to extend the service life of the equipment and ensure its stable operation.
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.Equipment procurement cost: The purchase price of second-hand equipment is usually lower than that of new equipment, but factors such as the service life, brand, model and functional perfection of the equipment need to be considered.
2.Transportation and installation costs: The cost of transporting the equipment from the place of purchase to the place of use and installing it, including handling, installation and calibration costs.
3.Maintenance and repair costs: Since the used equipment has been used, more maintenance and repair may be required. Therefore, regular maintenance costs and expected repair costs should be considered.
4.Operating costs: includes electricity and other energy consumption, as well as operator salaries and training costs.
5.Spare parts and consumables cost: Used equipment may require more frequent replacement of spare parts and consumables, which will also increase costs.
6.Upgrade and retrofit costs: In order to meet production needs, it may be necessary to upgrade or retrofit used equipment, and these costs need to be taken into account.
7.Warranty and after-sales service cost: Used equipment may have no warranty or a short warranty period, so after-sales service costs need to be taken into account.
In order to effectively control the cost of the second-hand pipe straightener, it is recommended to carry out a comprehensive cost accounting and benefit analysis, select the second-hand equipment with good reputation and good technical conditions, and do a detailed maintenance plan to extend the service life of the equipment and ensure its stable operation.
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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Tel: +86-13392281699
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Email: zty@usedpipemill.com
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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