What is the process principle of ERW high frequency welded pipe

ERW high frequency welded pipe needs a series of processes from raw materials to finished products, and its production process mainly depends on the product variety. To complete these processes, various corresponding mechanical equipment and welding, electrical control and detection devices are required. These equipment and devices are arranged reasonably according to different process requirements.

ERW high frequency welded pipe mainly uses the skin effect and proximity effect of high frequency current to make the current highly concentrated on the edge to be welded, so that it can be heated to the welding temperature within one hundredth of a second, and then pressure welding is carried out under the action of extrusion roller.