华中科技大学学报（自然科学版）2017，Vol.42Issue(2)：40-43,4.DOI:10.13245/j.hust.170208
埋弧焊熔滴过渡试验研究
Experimental study on metal transfer behavior in submerged arc welding
摘要
Abstract
The metal transfer behavior of arc welding directly effects the appearance and quality of an weld,but the arc and droplet in submerged arc welding (SAW)are invisible since they are buried by flux layers.Experiments was carried out on these problems,a stainless steel tube was used to estab-lish a filming channel,the metal transfer processes of SAW were filmed by a high-speed photography system,and the welding electrical signals were acquired by analysator hannover (AH).Through anal-ysis of the images from high-speed camera combined with the waveforms from AH,the metal transfer behaviors of SAW were deduced.The results show that with the increment of welding current,there appears three different flux-wall guided transfer behaviors,including non-shortcircuit,low-current-shortcircuit and high-current-shortcircuit.Further analysis shows that there is a special arc-bridge co-existence phenomenon at high welding current.关键词
埋弧焊/熔滴过渡/高速摄影/电信号波形图/试验研究Key words
submerged arc welding/metal transfer/high-speed photography/electrical signal wave-form/experimental study分类
矿业与冶金引用本文复制引用
李科,吴志生,齐志龙,陈峰华..埋弧焊熔滴过渡试验研究[J].华中科技大学学报（自然科学版）,2017,42(2):40-43,4.基金项目
国家自然科学基金资助项目(51275332) （51275332）
山西省回国留学人员科研基金资助项目(2016-092) （2016-092）
国家级大学生创新创业训练计划资助项目(2015266) （2015266）
