High frequency welded pipe equipment on the impact of welded tube blank defects on the quality of welded tube (8)
- Sort:Information
- Auth:
- Source:
- Release time:2022-10-07 11:30
- Pvs:
【概要描述】If the high frequency welded pipe equipment refers to the chemical composition and mechanical properties of welded tube blanks that require certain inspection methods to be known as invisible defects; then, those defects that can be seen only by vision are called tube blanks. Overt defect.
High frequency welded pipe equipment on the impact of welded tube blank defects on the quality of welded tube (8)
【概要描述】If the high frequency welded pipe equipment refers to the chemical composition and mechanical properties of welded tube blanks that require certain inspection methods to be known as invisible defects; then, those defects that can be seen only by vision are called tube blanks. Overt defect.
- Sort:Information
- Auth:
- Source:
- Release time:2022-10-07 11:30
- Pvs:
If the high frequency welded pipe equipment refers to the chemical composition and mechanical properties of welded tube blanks that require certain inspection methods to be known as invisible defects; then, those defects that can be seen only by vision are called tube blanks. Overt defect.
The dominant defects of the welded tube blank of the high frequency welded pipe equipment generally include cracked edges, broken edges, sawtooth, pitting, scratches, roll marks, dark spots, edge burrs, sickle bends, wrinkles, waves, edge warping, and points. Layers, warped skins, pinholes, sticky rolls, soft spots, rust, oxide layers, towers, loose rolls, etc. Let me introduce you to the causes of cracked edges and the impact of cracked edge billets on welded pipes.
Stratification
Layering refers to the phenomenon of two or more layers in the thickness direction of the tube blank. Stratification is divided into dominant and recessive. Dominant stratification can be judged by the naked eye without deformation. Invisible stratification can be seen only after deformation. Invisible stratification is more harmful than dominant.
Reasons for stratification:
(1) The oxide film on the surface of the molten steel is rolled into the inside of the steel ingot and is formed in the subsequent rolling.
(2) There is slag inclusion in the billet, which forms delamination after rolling.
(3) The necking and the parts below the necking during the solidification process of the molten steel are loose due to insufficient filling of the molten steel. The necking and looseness will form a layer or interlayer after rolling.
(4) Non-metallic inclusions. During casting, steel slag or refractory materials in the steel failed to float on the surface of the molten steel and were mixed in the steel ingot, and subsequent rolling formed delamination.
The effect of delamination on the quality of welded pipe:
(1) The tube blank is easy to deviate during the forming process, which leads to abnormal production. This is because when the layered tube is rolled by the upper and lower forming rolls of the open pass, the linear speeds of the upper and lower forming rolls are in fact not absolutely synchronized, so that the layered tube will slip irregularly.
(2) Affect the quality of welds. If the edge of the tube is stratified, after being formed into an open tube to be welded, the inner layer of the tube should be compressed and the outer layer should be extended, causing the layered edge to be misaligned, resulting in a dislocation of the weld, and the outer burr is difficult to remove.
(3) Even if a tube is produced from the hidden layered tube blank, if it is not discovered in time during the production process, it will be more harmful, making it difficult for the welded tube to withstand the pressure of the normal wall thickness.
Regarding the defects of welded pipe blanks of high frequency welded pipe equipment (8), the causes of delamination and the effect of delamination on the quality of welded pipes, I hope it can help you.
More News
Time of issue : 2024-12-04
1.Installation and commissioning:
Position selection: According to the layout and process requirements of the production line, the installation position of the looping clip motor is reasonably selected.
Fixed and connected: Install the motor firmly in the designated position, and connect it with the corresponding mechanical transmission components.
Electrical wiring: Correct wiring to ensure reliable connection between the motor and the control system.
2.Start and Stop:
Check before starting: Check the lubrication state of the motor and transmission parts, whether the fasteners are loose, and whether the electrical line is normal.
Smooth start: When starting the motor, it should avoid the impact of instantaneous large current, and use soft start or frequency conversion start.
Normal shutdown: The shutdown should gradually reduce the speed of the motor to prevent sudden stop from impacting the equipment.
3.Operation and control:
Constant tension: The tension control system is used to maintain a constant tension during the operation of the looping motor to avoid strip relaxation or pulling.
Speed synchronization: Adjust the running speed of the motor according to the process requirements, so that it matches the speed of the equipment before and after the process.
Feedback control: Through the sensor and feedback system, real-time monitoring of the motor operating status, adjust the parameters to ensure the stable operation of the production line.
4.Maintenance and maintenance:
Regular inspection: Regularly check the wear of the motor and transmission parts, and replace the damaged parts in time.
Lubrication maintenance: Regular lubrication maintenance of mechanical parts to ensure their good operation.
Clean and dust-proof: Keep the motor and control cabinet clean to prevent dust and debris from entering, affecting the performance of the equipment.
5.Troubleshooting:
Fault diagnosis: When there is a fault, professional detection equipment is used to diagnose the motor and determine the cause of the fault.
Timely repair: Repair or replace the fault part according to the diagnosis results to ensure that the equipment returns to normal work as soon as possible.
In short, the correct use and maintenance of the looper clip motor is crucial to ensure the efficient and stable operation of the metal processing line.
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.Installation and commissioning:
Position selection: According to the layout and process requirements of the production line, the installation position of the looping clip motor is reasonably selected.
Fixed and connected: Install the motor firmly in the designated position, and connect it with the corresponding mechanical transmission components.
Electrical wiring: Correct wiring to ensure reliable connection between the motor and the control system.
2.Start and Stop:
Check before starting: Check the lubrication state of the motor and transmission parts, whether the fasteners are loose, and whether the electrical line is normal.
Smooth start: When starting the motor, it should avoid the impact of instantaneous large current, and use soft start or frequency conversion start.
Normal shutdown: The shutdown should gradually reduce the speed of the motor to prevent sudden stop from impacting the equipment.
3.Operation and control:
Constant tension: The tension control system is used to maintain a constant tension during the operation of the looping motor to avoid strip relaxation or pulling.
Speed synchronization: Adjust the running speed of the motor according to the process requirements, so that it matches the speed of the equipment before and after the process.
Feedback control: Through the sensor and feedback system, real-time monitoring of the motor operating status, adjust the parameters to ensure the stable operation of the production line.
4.Maintenance and maintenance:
Regular inspection: Regularly check the wear of the motor and transmission parts, and replace the damaged parts in time.
Lubrication maintenance: Regular lubrication maintenance of mechanical parts to ensure their good operation.
Clean and dust-proof: Keep the motor and control cabinet clean to prevent dust and debris from entering, affecting the performance of the equipment.
5.Troubleshooting:
Fault diagnosis: When there is a fault, professional detection equipment is used to diagnose the motor and determine the cause of the fault.
Timely repair: Repair or replace the fault part according to the diagnosis results to ensure that the equipment returns to normal work as soon as possible.
In short, the correct use and maintenance of the looper clip motor is crucial to ensure the efficient and stable operation of the metal processing line.
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
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
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
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
Wechat: 13392281699
Email: zty@usedpipemill.com
Company address:No. A99, East Lecong Avenue, Lecong Town, Foshan City, Guangdong Province