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A large number of second-hand real source, rapid integration of the entire used welded pipe production line. Installation and commissioning services can be provided at home and abroad to ensure the rapid production of qualified steel pipes. 

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Influence of welding process on welding quality of cold roll forming machine
Influence of welding process on welding quality of cold roll forming machine 查看详情
2023-03-18
Whether the welding quality of the cold roll forming machine meets the standard depends on the welding process. The welding process generally affects the quality of the welded pipe. The following describes the influence of the welding process on the welding quality of the cold bending forming machine.
High frequency welding of steel roll forming machine
High frequency welding of steel roll forming machine 查看详情
2023-03-15
The welding of stainless steel pipe made by steel roll forming machine is very different from that of carbon steel pipe in terms of process. The most notable is the oxides produced by the molten stainless steel during welding. The oxide melting point of carbon steel is lower than that of the base metal, and it melts before the base metal and is more easily extruded by the extrusion roller to form burrs. The metal composition of the solution pool is very clean, and the base metal is very bonded during the forging and welding process. close. The control of stainless steel oxides is extremely difficult, which easily leads to welding defects.
Adjustment of Welding Squeeze Roller for used high frequency welded pipe machine (2)
Adjustment of Welding Squeeze Roller for used high frequency welded pipe machine (2) 查看详情
2023-03-12
In the production of used high frequency welded pipe machine, the forming joint state of the tube blank directly affects the quality of the weld, and the parallelism of the butt surface of the welded joint is particularly important. In the process of seam welding of steel pipes, the parallelism of the seam is mainly ensured by adjusting the reduction amount of the upper roller of the squeeze roller and the gap between the two upper rollers.
Adjustment of welding squeeze roller for used high frequency welded pipe machine (1)
Adjustment of welding squeeze roller for used high frequency welded pipe machine (1) 查看详情
2023-03-09
In the production of used high frequency welded pipe machine, the forming joint state of the tube blank directly affects the quality of the weld, and the parallelism of the butt surface of the welded joint is particularly important. In the process of seam welding of steel pipes, the parallelism of the seam is mainly ensured by adjusting the reduction amount of the upper roller of the squeeze roller and the gap between the two upper rollers.
Suggestions for preventing defects of used high frequency welded pipe machine
Suggestions for preventing defects of used high frequency welded pipe machine 查看详情
2023-03-06
In the actual production of used high frequency welded pipe machine, several factors are often combined to produce defects. A narrow V-shaped mouth does not necessarily produce superburned oxides, unless the extrusion amount is slightly less than a normal value. The small amount of extrusion may be caused by the slightly narrow slitting width of the steel strip or the improper installation of the tooling and wear equipment.
Common welding defects of used high frequency welded pipe equipment (3)
Common welding defects of used high frequency welded pipe equipment (3) 查看详情
2023-03-03
There may be various defects in the used high frequency welded pipe equipment, and the names of defects are not completely uniform. Combined with the characteristics of our welded pipe production, the defects that often occur are as follows:①Inclusions; ②Insufficient fusion; ③Stick welding; ④Cast welding;Not all of these defects are present, but they are often found in high-frequency welded pipes.
Common welding defects of used high frequency welded pipe equipment (2)
Common welding defects of used high frequency welded pipe equipment (2) 查看详情
2023-02-28
There may be various defects in the used high frequency welded pipe equipment, and the names of defects are not completely uniform. Combined with the characteristics of our welded pipe production, the defects that often occur are as follows:①Inclusions; ②Insufficient fusion; ③Stick welding; ④Cast welding;Not all of these defects are present, but they are often found in high-frequency welded pipes.
Common welding defects of used high frequency welded pipe equipment (1)
Common welding defects of used high frequency welded pipe equipment (1) 查看详情
2023-02-25
There may be various defects in the used high frequency welded pipe equipment, and the names of defects are not completely uniform. Combined with the characteristics of our welded pipe production, the defects that often occur are as follows:①Inclusions; ②Insufficient fusion; ③Stick welding; ④Cast welding;Not all of these defects are present, but they are often found in high-frequency welded pipes.
Factors and various influences to ensure the quality of used HFW pipe equipments welded pipe products（2）
Factors and various influences to ensure the quality of used HFW pipe equipments welded pipe products（2） 查看详情
2023-02-22
In the process of producing welded pipes with used HFW pipe equipments, how to ensure that the product quality meets the requirements of technical standards and the needs of customers, it is necessary to analyze the factors affecting product quality in the production process of steel pipes.

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