a. During the forming process, the steel plate deforms evenly, the residual stress is small, and the surface does not produce scratches. The processed spiral steel pipe has greater flexibility in the size and specification range of diameter and wall thickness. Especially, high-grade steel-grade thick-walled pipes, especially small and medium-diameter thick-walled pipes, have advantages that other processes can’t match, which can satisfy users. There are more requirements in terms of spiral steel pipe specifications.
b. Adopting advanced double-sided submerged arc welding technology, welding can be realized in a good position, and it is not easy to have defects such as wrong edge, welding deviation and incomplete penetration, and it is easy to control the welding quality.
c. Perform 100% quality inspection on steel pipes, so that the entire process of steel pipes is under effective inspection and monitoring, which effectively guarantees product quality.
d. All the equipment of the whole line has the function of networking with the computer data acquisition system to realize the instant data transmission, and the central control room will check the technical parameters of the process.
