高寒地区长输管道环焊缝的返修  

Repair of girth welds in long-distance pipeline in frigid plateau region

作　　者：贾维君[1] 邵洪波[1] 李颂宏[1] 

机构地区：[1]中国石油天然气管道局第二工程分公司职工培训中心,江苏徐州221008

出　　处：《电焊机》2009年第5期169-171,共3页Electric Welding Machine

摘　　要：总结了在高寒地区进行返修的经验和技术措施。叙述了缺陷的定位、缺陷的清除、预热、改善返修焊缝处的受力状态、分段清除和分段焊接及多层多道焊等措施,保证返修的成功率。This paper summarizes the experience and technical measures for repair of girth welds in long distance pipeline in frigid plateau region.It mainly relates the measures which ensure the success rate of repair, such as positioning and elimination of defects, preheat, improvement of state for force in repaired welds, block elimination, block welding, multi-layer and multi-pass welding.

关 键 词：高寒地区 长输管道 焊缝返修 

分 类 号：TG441.7[金属学及工艺—焊接] TE832[石油与天然气工程—油气储运工程]