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Common faults of used welded pipe units

Common faults of used welded pipe units

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  • Release time:2022-12-25 11:30
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【概要描述】There are relatively many failures of used welded pipe machines, and the causes of failures are also more complicated. Often, one result is caused by multiple reasons, or one cause can cause several results. Some failures are tricky to deal with. Let's start with a brief description of the scratch accident.

Common faults of used welded pipe units

【概要描述】There are relatively many failures of used welded pipe machines, and the causes of failures are also more complicated. Often, one result is caused by multiple reasons, or one cause can cause several results. Some failures are tricky to deal with. Let's start with a brief description of the scratch accident.

  • Sort:Information
  • Auth:
  • Source:
  • Release time:2022-12-25 11:30
  • Pvs:
Detail

There are relatively many failures of used welded pipe machines, and the causes of failures are also more complicated. Often, one result is caused by multiple reasons, or one cause can cause several results. Some failures are tricky to deal with. Let's start with a brief description of the scratch accident.

 

Scratch

The scratches of the tube blank in the used welded pipe machines are mainly caused by two parts, ① scratches of the guide mechanism . ② the extrusion welding mechanism is scratched.

 

① Scratches of the guide mechanism

Scratches on the guide parts generally occur on both sides of the tube blank. If the guide structure with the guide sleeve is not properly adjusted, there will also be frictional scratches on the upper and lower surfaces of the tube blank. large and continuous. The main reason is that the height position of the guide sleeve is incorrect, or after the upper and lower guide roller bearings are damaged, the tube blank cannot be well controlled, so that it is formed after friction with the guide sleeve. In addition, when the guide roller deviates too much from the rolling center line, and the relative difference between the axes of the guide sleeve and the guide roller is too large, it will also cause scratches on both sides of the tube blank.

 

Used welded pipe machines

 

②The extrusion welding mechanism is scratched

The scratches caused by the extrusion roller mainly occur at the bottom of the tube blank, and the reasons are roughly as follows:

(1) The hole type does not match

Weld extrusion structures include two-roll, three-roll and four-roll. As long as the combined hole patterns do not match, it is easy to cause scratches on the surface of the tube blank, and the two-roll structure is particularly prominent. There are many factors that cause the hole pattern to not match. Take the two-roller structure as an example, such as bearing damage; axial movement of the roller; different hole size;

 

(2) Highly matched

The lower edge of the extrusion roll pass should be consistent with the height of the rolling line, while the height of the guide roll is determined by the wall thickness of the tube blank. If the height of the guide roller is reduced to a certain limit, the edge fillet of the squeeze roll pass will cause scratches to the bottom of the tube blank, especially after the R fillet of the squeeze roll pass is sharpened, the scratches will more likely to happen.

 

Used welded pipe machines

 

(3) Insufficient squeezing force on the squeezing roller

Especially for the two-roller structure of the extrusion roller device, when the upper extrusion force is insufficient, under the action of the tension of the tube blank, the roller shaft will have an upper elevation angle, so that the rounded corners of the edge R of the hole shape protrude, thereby causing the lower part of the tube blank. scratched. When the rounded corners of the squeeze roll hole type R are sharpened, the occurrence of scratching accidents will be aggravated.

 

The scratches of the tube blank in the used welding pipe machines are mainly caused by two parts, ① the guiding mechanism and ② the extrusion welding mechanism. As a result, the extrusion welding mechanism can be divided into (1) the hole type does not match (2) height matches (3) insufficient squeezing force on the squeezing roller.

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Looper motors are commonly used in steel rolling lines in the metalworking industry
Looper motors are commonly used in steel rolling lines in the metalworking industry
Looper motors are commonly used in steel rolling lines in the metalworking industry, especially in the production of strips, sheets and tubes. Its main function is to coordinate the movement of the workpiece, maintain a constant tension, and make the strip smooth transition between different processes. The following is the use of looper clip motor and precautions:

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
Detail
Looper motors are commonly used in steel rolling lines in the metalworking industry, especially in the production of strips, sheets and tubes. Its main function is to coordinate the movement of the workpiece, maintain a constant tension, and make the strip smooth transition between different processes. The following is the use of looper clip motor and precautions:

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
Apply of Bedroom screw looping
Apply of Bedroom screw looping
Time of issue : 2024-12-03
Bedroom screw looping (generally used in the field of metal working, such as steel rolling) is a device used for specific processing operations. Used roller bedroom spiral looper can still work effectively after proper maintenance and debugging. Its operation mainly includes the following aspects:

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
Detail
Bedroom screw looping (generally used in the field of metal working, such as steel rolling) is a device used for specific processing operations. Used roller bedroom spiral looper can still work effectively after proper maintenance and debugging. Its operation mainly includes the following aspects:

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
The mold types and types of used precision high-frequency welded pipe units
The mold types and types of second-hand precision high-frequency welded pipe units mainly include the following:

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
Detail
The mold types and types of second-hand precision high-frequency welded pipe units mainly include the following:

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
Roll forming machine is an important manufacturing equipment
Roll forming machine is an important manufacturing equipment, widely used in metal processing industry. The following is the main development process and key technical progress of roll forming machine technology:

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
Detail
Roll forming machine is an important manufacturing equipment, widely used in metal processing industry. The following is the main development process and key technical progress of roll forming machine technology:

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
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Wechat: 13392281699
Email: zty@usedpipemill.com
Company address:No. A99, East Lecong Avenue, Lecong Town, Foshan City, Guangdong Province

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