X80长输油气管道闪光对接焊技术研究  

Research on Flash Butt Welding Process of X80 Long-distance Oil and Gas Pipeline

作　　者：高建文[1] 胡建春[1] 宋晞明[1] 李洁[1] 傅建楠 

机构地区：[1]中国市政工程华北设计研究总院有限公司,天津300074

出　　处：《焊管》2015年第10期28-31,共4页Welded Pipe and Tube

摘　　要：针对长输油气管道建设对焊接质量的要求,对X80管线钢的闪光对接焊工艺进行了研究。通过对长输管道用X80管线钢化学成分及力学性能进行分析,结合选定的焊接方法和焊接工艺,对该管线钢进行了焊接,并对其焊接接头的力学性能进行了测试。结果表明,闪光对接焊得到的焊接接头性能良好,接头的强度、硬度、韧性等性能均满足X80管线钢管的安全要求。所选用的焊接方法和工艺参数可用于该管材的现场焊接。According to the welding quality requirements of long-distance oil and gas pipeline construction, the flash butt welding process of X80 pipeline steel was studied. Through analyzing the chemical composition and mechanical properties, combined with the selected welding process and welding method, the welding was carried out for X80 pipeline steel, and the mechanical properties of its welded joints were tested. The results showed that the flash butt welding performance of X80 steel is very good, and the strength, hardness and low temperature toughness can meet the safety requirement of X80 grade pipeline steel. The welding method and the technological parameters can be used for site welding.

关 键 词：X80 油气管道 焊接 闪光对焊 焊接工艺 力学性能 

分 类 号：TG457[金属学及工艺—焊接]