Why do we develop electromagnetic control systems?

That's because as the welding speed increases, the arc is in a free state, and it will drag back as the steel pipe advances (commonly known as drag arc). The faster the speed, the more obvious the drag arc. This will cause the arc to not be firm and the penetration force to be insufficient. There will be undercut issues on both the outer and inner sides of the weld seam, and there will be "hump" issues inside and outside the weld seam. It has a significant impact on the polishing of welding seams and welding quality, especially for industrial welded pipes and sanitary pipes. When there is a problem of undercutting and the polishing is not smooth, it can cause residual liquid and corrode the steel pipe. It can also cause stress corrosion points. So in the field of industrial welded pipes, in order to obtain high-quality welds, it is necessary to reduce welding speed and ensure welding quality.


What are the components of an electromagnetic control system?

Device composition: One electromagnetic controller

One electromagnetic coil

One water-cooled seat

A set of magnetic boots

A welding gun


Hangao Technology has always created value for customers, and the electromagnetic control system can not only increase speed by 20-30%, but also solve the problems of undercutting and "humping". Many customers have already ordered equipment from us, and the results are quite good during operation.