The main technical characteristics of DSAW pipe
First, during the process of steel tube forming, the deformation of the steel plate is uniform, the residual stress is small, and the surface does not produce scratches. The machined steel pipe has more flexibility in the size and thickness of the steel tube, especially in the production of high grade thick wall steel pipe, especially the large diameter thick wall tube, which can meet the advantages of other processes. Steel specifications are more required;
Two, the use of pre weld welding (welding) technology, in the best position to achieve welding, it is not easy to appear wrong side, welding and non welding defects, easy to control the quality of welding;
The three is the whole mechanical expansion, which can improve the size accuracy of the steel pipe effectively, improve the stress distribution of the steel tube, avoid the damage caused by stress corrosion, and be beneficial to the welding construction site.
Four, the quality inspection of the steel pipe will be carried out by 90% and 100%, so that the quality of the submerged arc welded pipe can be effectively guaranteed under the monitoring and monitoring of the whole process of the steel pipe production.
Five, all the equipment and computer data acquisition system of the whole production line have network function to realize the real-time data transmission. The central control room tests the mining quality of the technical parameters and quality indexes in the production process.