In terms of quality, the high-frequency welded pipe machine has the advantages of good weld quality, small internal and external burrs, high welding speed and low power consumption, and can be widely applied and popularized. The high-frequency welded pipe equipment can produce heterogeneous pipes normally, and at the same time, it can produce square and rectangular pipes. Because square and rectangular pipes have large section modulus, they can withstand greater bending force, which can save a lot of metal, save processing time and reduce components. Weight and other advantages, so it is promoted in all aspects of industry and agriculture.

In terms of use, with the improvement of the quality of welded seams and the reliability of non-destructive testing, the use of welded pipes is becoming more and more extensive, replacing seamless steel pipes in more departments and applications, and the growth rate of welded pipes is greater than that of seamless pipes.

It is the general trend of development. The high-frequency welding process has advantages in many aspects, and has wide adaptability to the material of the tube blank and the size of the steel pipe. High-frequency welding not only improves the welding speed, but also obtains welds with small heat-affected zones and good fire-through properties.