Research on Automatic TIG Root Welding of Low Temperature Carbon Steel and Stainless Steel Pipeline for LNG Module Construction

2019 2nd International Conference on Advanced Materials, Intelligent Manufacturing and Automation

Li, Chunrun^1^2 ; Zhang, Tianli^1^2 ; He, Yazhang^1^2

CNPC Key Laboratory of Offshore Engineering, Tianjin

300451, China^1

CNPC Engineering Technology Research Company Limited, Tianjin

300451, China^2

关键词: ASME B31.3;    Construction projects;    Construction quality;    Efficiency increase;    Low temperatures;    Process pipelines;    Technical specifications;    TIG-welding;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/569/2/022007/pdf
DOI  :  10.1088/1757-899X/569/2/022007

来源: IOP

【 摘 要 】

We investigated the application of automatic TIG welding for LNG process pipeline in Yamal LNG module construction project. The study achieved efficient automatic TIG welding of low temperature carbon steel and stainless steel pipeline in root welding and hot welding. The properties of the weld meet the requirements of project technical specification and standard ASME B31.3. Welding efficiency increases 2 times compared with conventional manual TIG welding in root welding and hot welding. Therefore, the construction quality and progress of the project are improved.