自保护药芯焊丝管道全位置自动焊接工艺研究  

Self⁃shielded Flux⁃cored Wire Pipeline All⁃position Automatic Welding Technology

作　　者：牛连山 李阳 姜艳朋 贾建龙 梁明明 朱明鑫 NIU Lianshan;LI Yang;JIANG Yanpeng;JIA Jianlong;LIANG Mingming;ZHU Mingxin(China Petroleum Pipeline Research Institute Co.,Ltd.,Langfang 065000,Hebei,China)

机构地区：[1]中国石油天然气管道科学研究院有限公司,河北廊坊065000

出　　处：《焊管》2024年第5期69-76,共8页Welded Pipe and Tube

摘　　要：针对目前城市管道建设中广泛存在的传统手工焊和半自动焊接工艺所导致的焊接质量不稳定等问题,设计了一种自保护药芯焊丝管道全位置自动焊接工艺。采用氩弧自动焊根焊+自保护药芯焊丝自动焊填充及盖面焊的焊接方法,选用22°U形坡口及Φ1.6 mm JC-29Ni1焊丝。结果表明,焊接接头力学性能能够达到标准要求。该工艺能够为城市管道全位置自动焊提供参考。Aiming at the problems of unstable welding quality caused by traditional manual welding and semi⁃automatic welding in urban pipeline construction,an all⁃position automatic welding process of self⁃shielded flux⁃cored wire pipe was designed.The welding method of argon arc automatic root welding+self⁃shielded flux⁃cored wire automatic welding filling and cover welding,with 22°U groove andΦ1.6 mm JC-29Ni1 wire,the mechanical properties of the welded joint can meet the standard requirements.This process can provide reference for all⁃position automatic welding of urban pipeline.

关 键 词：全位置自动焊接 自保护药芯焊丝 坡口形式 焊接缺陷 

分 类 号：TG444[金属学及工艺—焊接]