1. During the forming process of the spiral steel pipe, the deformation of the steel plate is uniform, the residual stress is small, and the surface does not produce scratches. Processed steel pipes have greater flexibility in the range of diameter and wall thickness of steel pipes, especially in the production of high-grade thick-walled steel pipes, especially large-diameter thick-walled pipes. Users have more requirements on the specifications of spiral steel pipes;
2. Adopting the process of pre-welding first and then internal and external welding (finish welding), welding can be realized at the position, and it is not easy to have defects such as misalignment, welding deviation, and incomplete penetration, and it is easy to control the welding quality;
3. The overall mechanical expansion can effectively improve the dimensional accuracy of the spiral steel pipe, and improve the distribution of internal stress of the spiral steel pipe, thereby avoiding damage caused by stress corrosion, and at the same time, it is beneficial to the welding construction on site;
4. Carry out 9 items of 100% quality inspection on steel pipes, so that the whole process of steel pipe production is under effective inspection and monitoring, effectively ensuring the quality of submerged arc welded steel pipe products;
5. All the equipment of the entire production line has the function of networking with the computer data acquisition system to realize real-time data transmission, and the central control room collects the technical parameters and quality indicators in the production process.
Post time: May-09-2023