中俄天然气东线管道全自动焊接工艺分析

Automatic Welding Technology for the Sino-Russian Eastern Route Gas Pipeline

全自动焊接工艺已成为长输油气管道焊接施工优选的焊接方法,对中俄天然气东线工程的X80M管线钢的焊接性进行了分析,介绍了X80M管线钢的母材、焊材及焊接设备,确定1 422 mm管径X80级管道钢全自动焊接工艺中焊接设备、坡口形式及焊接材料的选取,指出焊接工艺参数的选取应主要侧重于焊缝成型和内部质量,并通过预定工艺参数进行大量的焊接试验。

The technology of automatic welding is an optimally selected welding way for long-distance oil and gas pipelines. For X80 M pipeline steel used in the Sino-Russian Eastern Route Gas Pipeline, the welding property, the parent and welding material,and the welding facilities were analyzed. Furthermore, a kind of X80 M pipeline steel with 1422 mm of pipe diameter might be served as the welding facility of automatic welding technology. And the break form and welding material were selected. Results show that to choose welding parameters should focus on weld joint shape and internal quality, and it's necessary to implement a lot of welding experiments on predetermining technical parameters.