摘要
在长输管道焊接施工过程中,环缝根焊的焊接工艺选择是决定管道施工速度和质量的关键。重点介绍了目前国际管道施工中先进的根焊设备——内焊机的结构及工作原理。概述了管道内环缝多焊头自动焊机整体结构和焊接工艺,分析比较了管道施工中各种根焊的方法及特点。
in the process of long-distance pipeline construction,the choose of welding technology of ringlike seam root welding is the key of speed and quality of pipeline construction.this paper introduces emphastically the constructure and principle of pipeline internal welding machine,summarizes its whole constructure and welding process,and compares the methods and characteristic of root welding.
出处
《电焊机》
2004年第7期28-31,共4页
Electric Welding Machine
关键词
长输管道
内焊机
多焊头
定位装置
内焊工艺
long-distance pipeline
internal welding machine
multi-head
orient device
internal welding tecnology