基于应变设计的X80钢管环焊技术研究  

Welding technology of X80 steel pipe based on strain design

作　　者：靳海成[1] 王俊红[1] 郭静薇[1] 冯大勇[1] 

机构地区：[1]中国石油天然气管道科学研究院,廊坊市065000

出　　处：《焊接》2012年第4期57-60,72,共4页Welding & Joining

摘　　要：针对西气东输二线管道工程用基于应变设计的X80大变形钢管现场焊接技术开展研究,通过对X80大变形钢管的母材试验、焊接材料筛选、焊接接头软化和环焊工艺研究,完成了地震断裂带用焊条电弧焊工艺。通过几何补强覆盖法实现了自保护药芯焊丝半自动焊在X80大变形钢管上的应用,提高了地震断裂带的施工效率和施工质量。The field welding technology of X80 steel pipe used in the Second West-East pipeline project was studied based on large strain deformation design.By large deformation test of base matel,welding material selection,welded joints to soften and girth welding research,shielded metal arc welding process was used in seismic fracture zone.Self-shielded flux cored wire semi-automatic welding was used to weld X80 large deformation steel by reinforcement,which improves the construction efficiency and construction quality in seismic fracture zone.

关 键 词：X80大变形钢管 基于应变设计 焊接技术 

分 类 号：TG457.6[金属学及工艺—焊接]