What does ERW welded pipe unit mean, is it the same as high frequency longitudinal welded pipe unit?


Release time:

2023-11-16

  What does 1. ERW welded pipe unit mean, is it the same as high frequency longitudinal welded pipe unit?

Straight seam high frequency resistance welded steel pipe and high frequency straight seam welded pipe is a kind of production welding process steel pipe, high frequency straight seam welded pipe is a kind of abbreviation, these two kinds of said are ERW steel pipe. "ERW steel pipe" is a high-frequency straight seam resistance welded pipe. The English Electric Resistance Welding, abbreviated as ERW, and ERW pipe is a "high-frequency resistance welded steel pipe". The welding process is different from that of ordinary welded pipe. The weld is formed by melting the base material of the steel strip body, and the mechanical strength is better than that of ordinary welded pipe. ERW means resistance welding. Resistance welding has the characteristics of high production efficiency, low cost, material saving, and easy automation. Therefore, it is widely used in aviation, aerospace, energy, electronics, automobiles, light industry and other industrial sectors. It is one of the important welding processes. one.

  2. straight seam high frequency welded pipe flash is how to appear?

The flash of straight seam high frequency welded pipe is caused by excessive welding current or too fast welding speed. In the high-frequency welding process, when the current passes through the steel plate, a strong magnetic field will be generated. The strength of the magnetic field will affect the melting and solidification of the steel plate. If the current is too large or the speed is too fast, the melting and solidification of the steel plate will be uneven. Form flash-like line marks. In addition, the straight seam high-frequency welded pipe flash may also be related to the technical level of welding equipment and operators. Therefore, in the production practice, it is necessary to strengthen the control and management of the welding process, control the welding parameters, and improve the operating skills of the workers, in order to effectively avoid the appearance of the flash of the straight seam high-frequency welded pipe.