刘自刚;陈飞;唐海鸿;陈亮;
LIU Zi-gang;CHEN Fei;TANG Hai-hong;CHEN Liang;Noblelift Intelligent Equipment Co.Ltd.;Engineering Research Center of Intelligent Logistics Equipment of Zhejiang Province;

• 1:诺力智能装备股份有限公司
• 2:浙江省智能物流装备工程技术研究中心

摘要(Abstract)：

深熔钨极气体保护焊(deep penetration TIG welding,DP-TIG焊)具有焊接熔深大的优点,在厚板焊接领域具有极大优势.为了拓展DP-TIG焊在薄板高速焊领域的应用,分别针对低碳钢和不锈钢板材,调整焊接电流、焊接速度、钨极锥角、气体成分等工艺参数,进行了薄板高速焊接工艺研究.结果表明:相对常规TIG焊,对于2 mm厚的低碳钢板焊接速度提高了75%,对于3 mm厚的不锈钢板,焊接速度提高了2倍多,并且随着钨极角度的减小,焊接速度可以进一步提高,如果保护气体中引入一定量的H_2可以进一步提高不锈钢DP-TIG焊的最大焊接速度.
Deep Penetration TIG welding(DP-TIG welding) takes the advantage of deep penetration welding and has great advantages in the field of thick plate welding. In order to expand applications of DP-TIG welding in the field of high-speed welding of thin plates, the high-speed welding process of thin plates made of low carbon steel and stainless steel was investigated in this research by adjusting welding current, welding speed, tungsten cone angle, gas composition and other process parameters. The experimental results show that compared with conventional TIG welding, the welding speed of low carbon steel plate with 2 mm thickness is increased by 75%, and for stainless steel plate with 3 mm thickness, the welding speed is increased by more than 2 times. Moreover, with the decrease of tungsten electrode angle, the welding speed can be further improved. If a certain amount of H_2 is introduced into the shielding gas, the maximum welding speed of stainless steel DP-TIG welding may be improved further to a certain extend.

关键词(KeyWords)： 不锈钢;低碳钢;DP-TIG高速焊;钨极锥角;保护气成分
stainless steel;low carbon steel;DP-TIG high-speed welding;angle of tungsten electrode;component of shielding gas

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 刘自刚;陈飞;唐海鸿;陈亮;
LIU Zi-gang;CHEN Fei;TANG Hai-hong;CHEN Liang;Noblelift Intelligent Equipment Co.Ltd.;Engineering Research Center of Intelligent Logistics Equipment of Zhejiang Province;

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参考文献(References)：

• [1] 武传松,王林,陈姬,等.电弧焊接工艺高效改性的研发进展 [J].焊接,2013(8):1-10.
• [2] 刘白鸽,程伟,张聪华.表面活性剂对奥氏体不锈钢TIG焊熔深的影响 [J].化工装备技术,2018,39(2):12-14.
• [3] ATUL BABBAR,AKHILESH KUMAR,VIVEK JAIN,et al.Enhancement of activated tungsten inert gas (A-TIG) welding using multi-component TiO2-SiO2-Al2O3 hybrid flux [J].Measurement,2019(148):1-16.
• [4] 张勇,孙琳琳,唐家成,等.高硅煤粉灰活性剂对Q235钢液态金属表面张力TIG焊缝的影响 [J].焊接学报,2018,39(5):92-96.
• [5] KULKARNI A,DWIVEDI D K,VASUDEVAN M.Effect of oxide fluxes on activated TIG welding of AISI 316L austenitic stainless steel [J].Materials Today:Proceedings,2019(274):4695-4702.
• [6] PRATISHTHA SHARMA,DHEERENDRA KUMAR DWI-VEDI.A-TIG welding of dissimilar P92 steel and 304H austenitic stainless steel:Mechanisms,microstructure and mechanical properties [J].Journal of Manufacturing Processes,2019(44):166-178.
• [7] 马壮,于秀秀,时海芳,等.煤粉灰A-TIG熔池流动行为及焊缝性能分析响 [J].焊接学报,2017,38(9):65-69.
• [8] 张桂清,任英磊,刘凯,等.磁场作用下镁合金A-TIG焊工艺参数的优化 [J].焊接学报,2016,37(8):105-108.
• [9] 刘自刚,瞿怀宇,曹瑞昌,等.DP-TIG焊接方法工艺研究 [J].焊接,2017(3):61-65.
• [10] 袁章福,柯家骏,李晶.金属及其合金的表面张力 [M].北京:科学出版社,2006,5-34.
• [11] 郭景杰,傅恒志.合金熔体及其处理 [M].北京:机械工业出版社,2005:8-71.