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shou gong wu ji zuo hu han zai da kou jing chang shu guan dao zhong de ying yong
Author(s): 
Pages: 95-96
Year: Issue:  10
Journal: Welding Technology

Keyword:  钨极氩弧焊长输管道焊接工艺;
Abstract: <正>0前言手工钨极氩弧焊(简称TIG焊)又称钨极惰性气体保护焊,和焊条电弧焊一样,是一种非常普遍的焊接方法,我国一般常用在异种钢材和薄壁板的焊接上,在石油工程的应用中,主要用在站场工程的小口径管材的焊接,鲜有使用在大口径长输管道的焊接中。1工艺选择在石油天然气的长输管道施工中,对管道内洁净度要求较高,一般要经过数道清管程序,清除管内的非金属杂质(水、泥土、内焊缝药渣、铁锈、施工
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