Introduction of welds of high frequency resistance welded steel pipes
The high-frequency resistance welded steel pipe is different from the ordinary welded pipe welding process. The weld is made of the base material of the steel strip body, and the mechanical strength is better than that of the general welded pipe. The surface is smooth, high precision, low cost and low weld seam height, which is beneficial to the coating of 3PE anti-corrosion coating. The welding method of high-frequency welded steel pipe and submerged arc welded pipe is significantly different. Since the welding is done instantaneously at high speed, the difficulty in ensuring the welding quality is much higher than that in the submerged arc welding method.