A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
BACKING RING FOR CONNECTING STEEL PIPE OF DIFFERENT DIAMETER
To provide a backing ring for connecting steel pipes of different diameters, which is able to improve work at a site where two steel pipes of different inner diameters are butt-welded.SOLUTION: A backing ring 1 has a small diameter portion 6 inserted into an upper pile (a small-diameter-side steel pipe) 35 when two steel pipes of different inner diameters are butt-welded and a large diameter portion 8 inserted into a lower pile (a large-diameter-side steel pipe) 30. The backing ring 1 has a cylindrical shape and includes: a ring main body having the small diameter portion 6 at one end thereof; and a fitting ring composing the large diameter portion 8 by its being joined to the other end portion of the ring main body while kept fitted thereon. Welding is performed so as to fill a groove (a bevel) S formed between a lower end of the upper pile 35 and an upper end of the lower pile 30, and the upper pile 35 and the lower pile 30 of different inner diameters are connected.SELECTED DRAWING: Figure 5
【課題】内径が異なる二つの鋼管を突合せ溶接する際の現場における作業を改善することが可能な異径鋼管接続用の裏当てリングを提供する。【解決手段】裏当てリング１は、内径が異なる二つの鋼管を突合せ溶接する際に上杭（小径側鋼管）３５内に挿入される小径部６と、下杭（大径側鋼管）３０内に挿入される大径部８とを有している。裏当てリング１は、円筒状をなし、その一方の端部を小径部６とするリング本体と、リング本体の他方の端部に外嵌めされた状態で接合され大径部８を構成する嵌合リングと、を備えている。上杭３５の下端と下杭３０の上端との間に形成された溝（開先）Ｓを埋めるように溶接が行われ、互いに内径の異なる上杭３５と下杭３０とが接続される。【選択図】図５
BACKING RING FOR CONNECTING STEEL PIPE OF DIFFERENT DIAMETER
To provide a backing ring for connecting steel pipes of different diameters, which is able to improve work at a site where two steel pipes of different inner diameters are butt-welded.SOLUTION: A backing ring 1 has a small diameter portion 6 inserted into an upper pile (a small-diameter-side steel pipe) 35 when two steel pipes of different inner diameters are butt-welded and a large diameter portion 8 inserted into a lower pile (a large-diameter-side steel pipe) 30. The backing ring 1 has a cylindrical shape and includes: a ring main body having the small diameter portion 6 at one end thereof; and a fitting ring composing the large diameter portion 8 by its being joined to the other end portion of the ring main body while kept fitted thereon. Welding is performed so as to fill a groove (a bevel) S formed between a lower end of the upper pile 35 and an upper end of the lower pile 30, and the upper pile 35 and the lower pile 30 of different inner diameters are connected.SELECTED DRAWING: Figure 5
【課題】内径が異なる二つの鋼管を突合せ溶接する際の現場における作業を改善することが可能な異径鋼管接続用の裏当てリングを提供する。【解決手段】裏当てリング１は、内径が異なる二つの鋼管を突合せ溶接する際に上杭（小径側鋼管）３５内に挿入される小径部６と、下杭（大径側鋼管）３０内に挿入される大径部８とを有している。裏当てリング１は、円筒状をなし、その一方の端部を小径部６とするリング本体と、リング本体の他方の端部に外嵌めされた状態で接合され大径部８を構成する嵌合リングと、を備えている。上杭３５の下端と下杭３０の上端との間に形成された溝（開先）Ｓを埋めるように溶接が行われ、互いに内径の異なる上杭３５と下杭３０とが接続される。【選択図】図５
BACKING RING FOR CONNECTING STEEL PIPE OF DIFFERENT DIAMETER
異径鋼管接続用の裏当てリング
SHIMABUKURO MORIYOSHI (author) / KITAOKA SHIGEKI (author)
2022-05-17
Patent
Electronic Resource
Japanese
BACKING RING FOR WELDING CONNECTION OF DIFFERENT DIAMETER PIPES IN STEEL PIPE PILE
| European Patent Office | 2020
DIFFERENT DIAMETER STEEL PIPE PILE CONNECTING MEMBER AND STEEL PIPE PILE USING THE SAME
| European Patent Office | 2020