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Common faults of used welded pipe units

Common faults of used welded pipe units

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  • Release time:2022-03-07 11:30
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【概要描述】There are relatively many failures of used welded pipe units, 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 units, 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:2022-03-07 11:30
  • Pvs:
Detail

There are relatively many failures of used welded pipe units, 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 units are mainly caused by two parts, ① scratches of the guide mechanism. ② the extrusion welding mechanism is scratched.

 

Used welded pipe units

 

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 units

 

② The 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.

 

(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.

 

Used welded pipe units

 

The scratches of the tube blank in the used welding pipe units 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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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
Product feature introduction
High frequency welded pipe machine is widely used in modern industry, especially in the pipe manufacturing industry. It is highly favored by users for its high efficiency and precision. In order to better understand and master this technology, this article will use the keyword "second-hand welded pipe machine" and combine it with practical applications to analyze the seven key factors of its effective power output.
Firstly, we need to clarify the definition of 'second-hand welded pipe machine'. Second hand welded pipe machine refers to equipment that has been used but has been repaired and debugged before being put back into use. Due to its newer production technology and lower purchasing costs, it has become an ideal choice for many small and medium-sized enterprises. However, understanding the influencing factors of power output issues that arise during use, especially in high-frequency and high-intensity operating environments, is crucial.


1. The aging degree of the equipment itself: The components of the second-hand welding pipe machine will wear and age to varying degrees over time, which directly affects the stability of its power output. The maintenance and regular inspection of equipment can reduce this impact.
2. Operating environment: Factors such as humidity, temperature, and electromagnetic interference also have a significant impact on the operation of second-hand welded pipe machines. Maintaining a good working environment is crucial for the effective power output of equipment.
3. Debugging and Calibration: Before the second-hand welded pipe machine is put back into use, it needs to undergo strict debugging and calibration to ensure that all parameters reach their optimal state. This has a significant impact on the stability and power output of the device.
4. Operational skills: Proficient operational skills are the key to ensuring the efficient operation of second-hand welded pipe machines. Familiar with device characteristics and able to flexibly adjust operating parameters can significantly improve power output efficiency.
5. Power quality: Unstable power supply can cause fluctuations in the power output of second-hand welded pipe machines. The use of high-quality power equipment to ensure stable voltage and current is the foundation for ensuring the normal operation of the equipment.
6. Maintenance: Regular maintenance can effectively extend the service life of second-hand welded pipe machines and help stabilize power output. During maintenance, key parts such as welding joints, cooling systems, and electrical components should be carefully inspected.
7. Load adaptability: The power output of a second-hand welded pipe machine is not only affected by the equipment itself, but also by its matching with the load. Appropriate load distribution and reasonable production scheduling can comprehensively improve the operational efficiency of equipment.
In summary, a comprehensive understanding and mastery of the seven key factors mentioned above can significantly improve the effective power output of second-hand high-frequency welded pipe machines, extend equipment life, and lay a solid foundation for enterprises to save costs and improve production efficiency. Mastering these key points will undoubtedly result in twice the result with half the effort when choosing and using a second-hand welded pipe machine.



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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For more information, please pay attention to the website of Jinyujie Mechanical and Electrical Used Pipe Mill Supplier:www.usedpipemill.com

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Detail
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Economical and cost-effective
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Correction method of vertical roller
In order to solve the problem of "non square", the use of standing rollers is particularly important. Vertical roller is a tool used to adjust the shape of pipes. By setting the pressure and position of the vertical roller reasonably, the formed square tube can be calibrated to meet the standard requirements in terms of appearance. In the specific operation, the staff need to gradually adjust the angle and force of the vertical roller according to the actual deviation of the square tube, until the various dimensions of the square tube meet the standards.
Application scenarios and instance analysis
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For more information, please pay attention to the website of Jinyujie Mechanical and Electrical Used Pipe Mill Supplier:www.usedpipemill.com

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