直缝焊接钢管

UOE成形工艺在大直缝焊接钢管生产中的应用

Application of UOE forming technology for the large longitudinal seam arc welding steel pipes

介绍了UOE成型大直径直缝焊接钢管生产的工作原理、主要工艺及其机械设备构成等。

Manufacture of large - sized straight weld pipes with UOE deforming process is described here , covering the operation principle , major techniques and mechanical equipment composition .

大口径直缝焊接钢管的生产和发展（二）

Production of Full-diameter Straight Seam Welded Steel Tube and Its Development ( 2 )

目前高压输送天然气管线和海底管线多采用直缝焊接钢管。

At present , straight weld pipes are widely used in high-pressure natural gas pipelines and subsea pipelines .

基于直缝焊接钢管扩径过程的均匀变型机制，导出了用环劈法估算扩径后焊接钢管外表面上周向残余应力的公式。

By means of analyzing the deformation mechanism of diameter expanding of a straight-weld pipe , this paper educes a formula for calculating the hoop residual stress on outside surface of welded pipe after expanding by the ring splitting method .

采用卷板制造直缝埋弧焊接钢管，在国内甚至世界上尚属首次。

It was the first time that to make the longitudinal submerged arc welding pipe by rolling plate in our country or even in the world .

比较了直缝和螺旋缝焊接钢管的性能特点，讨论了焊接钢管的选用原则。

Function and character between straight welded steel pipe and spirally welded steel pipe are compared , and selection principle of welded steel pipes is discussed .