Narrow gap hot wire TIG welding of TP321 steel pipe

	Narrow gap hot wire TIG welding of TP321 steel pipe
	Zhu, Min 2; Luo, Xiaojun 2; Yin, Yan 1; Sun, Peng 1; Zhang, Ruihua 3
刊名	Hanjie Xuebao/Transactions of the China Welding Institution
	2016-09-25
卷号	37 期号:9 页码:79-82
关键词	Inert gas welding Pipeline corrosion Steel corrosion Steel pipe Welds Wire Automatic welding Groove parameters Hot wires Narrow gap Thick wall pipes Vertical positions Weld appearances Welding parameters
ISSN号	0253360X
英文摘要	In order to improve the welding efficiency of thick wall pipe and the corrosion resisting property of the weld joint, narrow gap hot wire TIG welding was adopted for TP321 steel pipe with the size of φ406 mm×30 mm by all position automatic welding. The narrow gap groove parameters and the main welding parameters matching were studied. Welding tests were carried out according to different area with various parameters. The result shows that the good backing weld forming was obtained when the groove gap is 1 mm, thickness of the root face is 2.5 mm, and the width of the groove bottom is 9~10 mm. No defect was detected when the groove angles was 4°~5°. The weld current of down vertical position welding should be larger than that of downward welding, which was reverse when up vertical position welding. The weld heat input of the over head position welding should be increased appropriately compared with that of downward welding. The good weld appearance was obtained by wall position welding by using parameters above. And the RT inspection result shows that the welding quality is excellent. © 2016, Editorial Board of Transactions of the China Welding Institution, Magazine Agency Welding. All right reserved.
语种	中文
出版者	Harbin Research Institute of Welding
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/113362]
专题	材料科学与工程学院
作者单位	1.State Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals, Lanzhou University of Technology, Lanzhou; 730050, China; 2.The Second Construction Company of CNPC, Lanzhou; 730060, China; 3.China Iron & Steel Research Institute Group, Beijing; 100081, China
推荐引用方式 GB/T 7714	Zhu, Min,Luo, Xiaojun,Yin, Yan,et al. Narrow gap hot wire TIG welding of TP321 steel pipe[J]. Hanjie Xuebao/Transactions of the China Welding Institution,2016,37(9):79-82.
APA	Zhu, Min,Luo, Xiaojun,Yin, Yan,Sun, Peng,&Zhang, Ruihua.(2016).Narrow gap hot wire TIG welding of TP321 steel pipe.Hanjie Xuebao/Transactions of the China Welding Institution,37(9),79-82.
MLA	Zhu, Min,et al."Narrow gap hot wire TIG welding of TP321 steel pipe".Hanjie Xuebao/Transactions of the China Welding Institution 37.9(2016):79-82.