Main process features:

1. During the forming process, the deformation of the steel plate is uniform, the residual stress is small, and the surface is not scratched. The processed spiral steel pipe has greater flexibility in the size range of diameter and wall thickness, especially in the production of high-grade thick wall pipe, especially in the production of medium and small diameter thick wall pipe, which has incomparable advantages over other processes, and can meet more requirements of users in the specification of spiral steel pipe.

2. By adopting * * double-sided submerged arc welding process, welding can be realized at * * position, and defects such as misalignment, deviation and incomplete penetration are not easy to appear, so welding quality is easy to control.

3. 100 * quality inspection is carried out on the steel pipe, so that the whole process of steel pipe production is under effective detection and monitoring, and the product quality is effectively guaranteed.

4. All the equipment of the whole production line has the function of networking with the computer data acquisition system to realize real-time data transmission, and the technical parameters in the production process are monitored by the * * control room.