Technical characteristics of double-sided submerged arc welded spiral steel pipes in industrial projects

1. During the spiral steel pipe forming process, the steel plate deforms uniformly, has low residual stress, and does not produce scratches on the surface. The processed steel pipes offer greater flexibility in terms of diameter and wall thickness for spiral welded steel pipes, especially in the production of high-grade thick-walled steel pipes, particularly large-diameter thick-walled pipes, providing unparalleled advantages over other processes and meeting more diverse user requirements for pipe specifications.

2. The pre-welding followed by internal and external welding (precision welding) process allows for on-site welding, reducing the likelihood of defects such as misalignment, weld deviation, and incomplete penetration, and facilitating weld quality control.

3. Overall mechanical diameter expansion effectively improves the dimensional accuracy of the spiral welded steel pipe and optimizes the distribution of internal stress, thus preventing damage caused by stress corrosion and facilitating on-site welding construction.

4. Nine 100% quality inspections are conducted on the spiral welded steel pipes, ensuring effective detection and monitoring throughout the entire production process and guaranteeing the quality of submerged arc welded steel pipe products.

5. All equipment on the entire double-sided submerged arc welded spiral welded steel pipe production line is networked with a computer data acquisition system, enabling real-time data transmission. The central control room monitors and controls the technical parameters and quality indicators during the production process.