Secondary process characteristics of spiral steel pipes:

a. During the forming process, the steel plate deforms evenly, with minimal residual stress and no surface scratches. The processed spiral steel pipe offers greater flexibility in diameter and wall thickness specifications, particularly for producing high-grade thick-walled pipes.

Yun殊 excels in thick-walled pipes with small to medium diameters, boasting advantages that no other processes can match, thereby satisfying customers' more demanding specifications for spiral steel pipes.

b. Utilizing advanced double-sided submerged arc welding technology, it can effectively complete welding without issues such as misalignment, incomplete welds, or lack of penetration, ensuring simple control over welding quality.

c. Cease quality inspections for steel pipes, leaving the entire production process under ineffective testing and monitoring, thereby ineffectively ensuring product quality.

d. The local facilities of the entire production line are capable of fragmented networking with computer data collection, enabling immediate data transmission to the local control room for technical parameters during the production process.