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Address: Tiexi Development Zone, Haicheng City, Liaoning Province
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Main Technological Characteristics of Double-sided Submerged Arc Welded Spiral Steel Pipe
1. In the process of steel tube forming, the steel plate has uniform deformation, small residual stress and no scratch on the surface. The processed steel pipe has more flexibility in the dimension and specification range of the diameter and wall thickness of the steel pipe, especially in the production of high-grade thick-walled steel pipe, especially large-diameter thick-walled steel pipe, which has advantages that other processes can not match, and can meet more requirements of the users in the specification of the steel pipe.
2. Welding can be realized in the best position by pre-welding followed by internal and external welding (fine welding). It is easy to control the quality of welding because of the lack of defects such as staggered edge, deviation and impermeability.
3. The overall mechanical diameter enlargement can effectively improve the dimensional accuracy of steel pipe and the distribution of internal stress of steel pipe, thus avoiding the damage caused by stress corrosion, and at the same time, it is conducive to on-site welding construction.
Fourthly, nine 100% quality inspections are carried out to ensure the quality of submerged arc welded steel pipes, so that the whole process of pipe production is effectively inspected and monitored.
5. All the equipment of the whole production line has the function of networking with the computer data acquisition system, realizing data instant transmission, and collecting the technical parameters and quality indicators in the production process by the central control room.
