公开(公告)号：US5726408A

公开(公告)日：1998-03-10

申请号：US485560

申请日：1995-06-07

Applicant: Arvid D. Easterday

Inventor： Arvid D. Easterday

IPC: B23K37/06 ,  B23K9/035

CPC classification number: B23K37/06 ,  B23K2201/06

Abstract: A tube such as a nozzle to be repaired or tubular sections to be repaired or connected to each other, are welded using a backing ring having a groove in the area to be welded. The groove forms a purge space for purge gas between the ring and the tube to establish an inert atmosphere on both inner and outer surfaces of the tube during the welding operation. The ring is removed by making a bore in the ring having a diameter larger than the diameter of the groove but smaller than the diameter of the ring. In this way, the ring is divided into two portions which are easily removed from the tube.

Abstract translation: 要修理的喷嘴等管子或待修复或连接的管状部分使用在待焊接区域中具有凹槽的背衬环焊接。 槽形成用于环和管之间的吹扫气体的净化空间，以在焊接操作期间在管的内表面和外表面上建立惰性气氛。 通过在环中形成具有比凹槽的直径大的直径但小于环的直径的孔来除去环。 以这种方式，环被分成容易从管中去除的两个部分。