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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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How to improve the lubrication mechanism of the used round tube forming machines flying saw (2)
How to improve the lubrication mechanism of the used round tube forming machines flying saw (2) 查看详情
2023-10-29
In view of the problem of insufficient lubrication of the used round tube forming machines flying saw saw car, we have 4 methods to improve it. These four methods are based on the improvement of the oil injection system, the improvement of the selection of gear and rack materials, the improvement of the selection of lubricants, and the improvement of the daily maintenance of the lubrication mechanism.
How to improve the lubrication mechanism of the used round tube forming machines flying saw (1)
How to improve the lubrication mechanism of the used round tube forming machines flying saw (1) 查看详情
2023-10-26
In view of the problem of insufficient lubrication of the used round tube forming machines flying saw saw car, we have 4 methods to improve it. These four methods are based on the improvement of the oil injection system, the improvement of the selection of gear and rack materials, the improvement of the selection of lubricants, and the improvement of the daily maintenance of the lubrication mechanism.
How does the used roll forming equipments make small-diameter welded pipes to remove internal burrs?
How does the used roll forming equipments make small-diameter welded pipes to remove internal burrs? 查看详情
2023-10-23
We all know that the used roll forming equipments is used to remove internal burrs through the tool bar when making pipes, and the internal burr removal tool bar is mainly composed of adjustable upper rollers, cutter heads, tool holders, lower rollers, oil cylinders, resistors, connecting shafts And the fixed plate, its structure is shown in the figure below.
Methods to prevent the formation of nodules during the production of welded pipes by used HFW pipe machines
Methods to prevent the formation of nodules during the production of welded pipes by used HFW pipe machines 查看详情
2023-10-20
During the startup and operation of the used HFW pipe machines production line, it is impossible to "open the skylight" at the position of the burr knife or the knife bar in the welded pipe to check the accumulation, but the inner burr can be judged from the inner burr pulled out after the flying saw. The scraping condition of the bayonet to determine whether there is accumulation.
Types of internal burrs that appear when used roll forming machine are welded and machine-made
Types of internal burrs that appear when used roll forming machine are welded and machine-made 查看详情
2023-10-17
The shape of internal burr appears when the used roll forming machines. There is a certain logical relationship between the shape of the burr in the welded pipe and the welding temperature, extrusion force and welding speed.
Important functions that the used HFW pipe machines must have
Important functions that the used HFW pipe machines must have 查看详情
2023-10-14
The impact of steel pipes with the same wall thickness but different diameters on the used HFW pipe machines will be much greater than that of steel pipes with the same diameter and different wall thicknesses.
Analysis of high frequency current of used HFW pipe machines
Analysis of high frequency current of used HFW pipe machines 查看详情
2023-10-11
The application in the field of welding of used HFW pipe machines is an alternating current frequency of 100 kHz to 800 kHz. The power frequency of 50 or 60 Hz is first converted to DC, which is converted to high frequency by using an oscillation formed by vacuum tubes combined with tank capacitors or by inverters consisting of high frequency power crystal devices MOSFETs (Metal Oxide Field Effect Transistors). Alternating current, through the output device to form a heating source for steel pipe welding.
Influence of annealing temperature on the performance of used welded pipe equipments
Influence of annealing temperature on the performance of used welded pipe equipments 查看详情
2023-10-08
We know that the welding process of used welded pipe equipments will cause work hardening and welding stress during the forming and welding process. If the annealing temperature is low, the stress and hardening cannot be fully eliminated, so the strength of the welded pipe after annealing is high but the plasticity is poor. With the increase of the annealing temperature, the stress and hardening are gradually eliminated, so that the strength of the welded pipe is reduced and the plasticity is improved.
Analysis of common faults of used welded pipe equipments sizing machine (3)
Analysis of common faults of used welded pipe equipments sizing machine (3) 查看详情
2023-10-05
In contrast, the failure rate of the sizing machine is the lowest, and it is easier to deal with. The common production accidents of the used welded pipe equipments sizing machine are as follows: ① Scratches. ②Drilling pipe. ③The pipe is not round.

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