The difference between submerged arc welding and high frequency welding1. Submerged arc weldingSubmerged arc welding is a method in which the arc burns under the flux layer for welding. The welding arc burns between the welding wire and the weldment. The heat of the arc melts the base metal and flux

At the end of the pre-welded steel pipe (1) before milling, weld the pilot arc plate (2) to find a pilot arc plate with the same thickness as the base material. The distance between the roller and the cutter head should not be too narrow. Later, you will have to apply force laterally) (3) Method of