Plate Straightening: The plates that have passed inspection and acceptance need to undergo straightening treatment to ensure the flatness and smoothness of the pipe surface, thereby reducing stress concentration and deformation during the welding process.
Forming and Welding: The straightened plates are fed into the forming unit to take the desired pipe shape. Welding is a crucial step in the production process, requiring advanced welding techniques (such as submerged arc automatic welding or laser welding) and stringent welding process control to ensure that the weld seam quality meets standard requirements.
Sizing and Finishing: The welded pipes undergo sizing and finishing treatments to eliminate welding stress, improve dimensional accuracy, and enhance surface quality.
