Main technical characteristics of DSAW steel pipe




First, steel tube forming process, steel plate deformation uniform, small residual stress, no scratches on the surface. Machining steel pipe has greater flexibility in the dimension and thickness of steel pipe, especially in the production of high-grade thick-walled steel pipe, especially large-caliber thick-walled steel pipe, can meet the advantages of other processes. More requirements for steel specifications;


Secondly, using pre-welded welding (welding) technology to achieve welding in the best position, it is not easy to produce offset, welding and non-welding defects, and easy to control the quality of welding.


Third, the overall mechanical expansion can effectively improve the dimensional accuracy of steel pipes, improve the stress distribution of steel pipes, thus avoiding the damage caused by stress corrosion, and is conducive to welding construction.


Fourthly, nine 100% quality inspections were carried out to ensure the quality of submerged arc welded pipe effectively under the supervision of the whole production process.


Fifth, all the equipment and computer data acquisition system of the whole production line have network function, which can realize real-time data transmission. The central control room excavates the technical parameters and quality indicators of the production process.