Steel strip coils: As the primary raw material for spiral submerged arc welded pipe, steel strip coils undergo rigorous physical and chemical inspections to ensure their quality meets production requirements. Before shaping, the steel strip undergoes leveling, trimming, edge planing, surface cleaning, conveying, and pre-bending treatments to ensure its shape and surface quality.
Welding wire: Welding wire is the metallic wire used to fill the weld joint during the welding process. The selection of welding wire is crucial to welding quality, requiring properties such as high strength and high toughness to ensure stability and reliability during the welding process.
Flux: Flux serves to protect the weld metal and remove impurities generated during the welding process, thereby enhancing the quality of the weld joint.
