Galvanized welded pipes are divided into spiral welded pipes and straight seam welded steel pipes according to the forming process, and high-frequency resistance welding and submerged arc welding according to the welding process. Spiral welded pipes ...

1. Production of precision galvanized welded pipes with small internal burrs: One important aspect of the quality of precision galvanized welded pipe products is the removal of internal burrs in the weld seam. Due to spatial limitations, the removal ...

Low cost carbon steel materials, after surface aluminum infiltration, possess wear resistance, corrosion resistance, and oxidation resistance characteristics. Has significant economic value. However, the welding difficulties of aluminum infiltrated s...