1、Steel strips for welded steel pipe
2、Major diameter welded steel pipe for low-pressure liquid service
3、It is pointed out that the steel pipe consumption in proportion to steel output and the reasonable consumption proportion of welded steel pipe to seamless steel pipe.
4、Give qualitative two means to take account of standard for steel strip and welded steel pipe.
5、The large diameter straight welded steel pipe is now flourishing developed.
6、This company has seamless steel pipe perforation unit production line two, cold draw production line six, hot rolling production line with welded steel pipe production line two.
7、This universal mill stand can be used not only in a new welded steel pipe mill to be designed but also in the reform to old welded steel pipe mill.
8、Probabilistic distribution model for welding flaws undetected, material mechanical properties and internal pressure of welded steel pipe are investigated.
9、This article discussed the residual stress of the HU-METAL method formed large diameter longitudinal seam welded steel pipe.
10、Aimed at spirally welded steel pipe, a visual sensor for automatic weld seam tracking system is developed.
11、In this paper the HAZ weld thermal cycles of the welding by both sides submerged arc welded steel pipe were reproduced by the dislocation overlap weld method.
12、This paper discusses the reason of scratch in the weld seam border of large OD. welded steel pipe, and analyses the method to reduce it.
13、In this paper, the reform process of the welding equipment and the choice of welding parameter about CO2 enclosed-arc welding as skelp end-welding in welded steel pipe mill are introduced.
