The process test result indicates that the drillpipes fabricated with TLP diffusion welder has small deformation on drillpipe joint ...

• 工艺试验结果表明,采用钻杆中频瞬时液相扩散焊机制造的钻杆焊接接头变形小、成形美观、接头强度和韧性达到母材水平。