电焊机2017，Vol.47Issue(10)：116-118,3.DOI:10.7512/j.issn.1001-2303.2017.10.25
9％Ni钢全自动TT立焊焊接工艺开发
Development of fully automatic TT vertical welding welding process for 9％ Ni Steel
李连波 1鲁欣豫 1任胜汉 1苏衍福 1杨朝辉1
作者信息
- 1. 海洋石油工程股份有限公司,天津300461
- 折叠
摘要
Abstract
The welding process of 9％Ni steel on LNG tank in China is SMAW,its efficiency is low,the labor intensity is high and the welding fume is harm to welder.In this article,we use the automatic welding car to develop the vertical welding procedure of 9％Ni steel.Welding is controlled by a handheld box,the labor intensity of this welding process is lower than SMAW,but the welding efficiency is higher than SMAW,also there is little welding fume.The root face and root opening of the groove is zero,it reduces the machining request.It doesn't need back shielded gas as welding,and reduces the amount of back root gouge and back filling.According to the result of NDT and mechanical test,the performance of the weld is excellent,especially on the CVN toughness,and it has a large margin from the numerical requirements.关键词
LNG/全自动/TIG焊接Key words
LNG/automatic/TIG welding分类
矿业与冶金引用本文复制引用
李连波,鲁欣豫,任胜汉,苏衍福,杨朝辉..9％Ni钢全自动TT立焊焊接工艺开发[J].电焊机,2017,47(10):116-118,3.
