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介绍细丝埋弧焊坡口打底焊的工艺方法、工艺评定及在芜湖长江大桥箱型斜杆坡口打底焊中的应用情况 ,提出了坡口打底焊焊接方法的选择依据和工艺原理 ,指出了坡口打底焊的新途径
This paper introduces the technology and process evaluation of the grooved bottom welding of filament submerged arc welding and its application in the case of bottom slab bevel welding in Wuhu Yangtze River Bridge. Principle, pointed out a new way of grooveback welding