A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
GAS-SHIELD ARC WELDING METHOD AND MANUFACTURING METHOD FOR STEEL PIPE
To provide a gas-shield arc welding method that reduces the number of joints where a defect is likely to occur and enables automatic welding by a welding robot.SOLUTION: A gas-shield arc welding method for welding a steel pipe by multi-layer welding includes: a step of attaching a steel frame erection adjustment jig 13 to an erection piece 12 provided on a steel pipe Wo and fixing a groove portion 10 of the steel pipe Wo; a step of welding a first layer or several layers to the groove portion 10 by semi-automatic welding or manual welding; a step of removing the steel frame erection adjustment jig 13 after completion of welding of the first layer or several layers; and a step of welding remaining layers by a welding robot 100 so that bead joints are provided at not more than two points.SELECTED DRAWING: Figure 3
【課題】欠陥が発生しやすい部分である継ぎ目の数が少なく、かつ溶接ロボットによる自動溶接が可能なガスシールドアーク溶接方法を提供する。【解決手段】鋼管を多層盛溶接で溶接するガスシールドアーク溶接方法は、鋼管Ｗｏに設けられたエレクションピース１２に鉄骨建方調整治具１３を装着して鋼管Ｗｏの開先部１０を固定するステップと、開先部１０に対して、半自動溶接又は手動溶接により、最初の１層又は数層目までを溶接するステップと、最初の１層又は数層目までの溶接終了後に、鉄骨建方調整治具１３を撤去するステップと、溶接ロボット１００によって、ビード継ぎ目が２箇所以下となるように残りの層を溶接するステップと、を備える。【選択図】図３
GAS-SHIELD ARC WELDING METHOD AND MANUFACTURING METHOD FOR STEEL PIPE
To provide a gas-shield arc welding method that reduces the number of joints where a defect is likely to occur and enables automatic welding by a welding robot.SOLUTION: A gas-shield arc welding method for welding a steel pipe by multi-layer welding includes: a step of attaching a steel frame erection adjustment jig 13 to an erection piece 12 provided on a steel pipe Wo and fixing a groove portion 10 of the steel pipe Wo; a step of welding a first layer or several layers to the groove portion 10 by semi-automatic welding or manual welding; a step of removing the steel frame erection adjustment jig 13 after completion of welding of the first layer or several layers; and a step of welding remaining layers by a welding robot 100 so that bead joints are provided at not more than two points.SELECTED DRAWING: Figure 3
【課題】欠陥が発生しやすい部分である継ぎ目の数が少なく、かつ溶接ロボットによる自動溶接が可能なガスシールドアーク溶接方法を提供する。【解決手段】鋼管を多層盛溶接で溶接するガスシールドアーク溶接方法は、鋼管Ｗｏに設けられたエレクションピース１２に鉄骨建方調整治具１３を装着して鋼管Ｗｏの開先部１０を固定するステップと、開先部１０に対して、半自動溶接又は手動溶接により、最初の１層又は数層目までを溶接するステップと、最初の１層又は数層目までの溶接終了後に、鉄骨建方調整治具１３を撤去するステップと、溶接ロボット１００によって、ビード継ぎ目が２箇所以下となるように残りの層を溶接するステップと、を備える。【選択図】図３
GAS-SHIELD ARC WELDING METHOD AND MANUFACTURING METHOD FOR STEEL PIPE
ガスシールドアーク溶接方法及び鋼管の製造方法
YAJIMA SEI (author)
2021-10-21
Patent
Electronic Resource
Japanese
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