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王文焱1,曾九令1,孙 伟2,解欣文3
(1.中原油田建筑集团,河南 濮阳 457001;2.中原油田对外经济贸易总公司,河南 濮阳 457001;3.中油特种车辆有限公司,河南 濮阳 457001)
摘要:介绍了药芯焊丝自保护下向焊技术?通过反复试验和在工程中的实际应用,分析不同工艺参数及操作手法对焊接质量的影响,制定了合理的焊接工艺匹配参数,并确定了恰当的焊接操作手法?同时,也简要介绍了焊前准备?组对?层间清渣?设备计量及工序控制等对焊接质量的影响?根据该技术在长输管道工程中的应用,指明药芯焊丝自保护焊技术的发展与完善将是我国大口径长输管道焊接技术的发展方向?
关键词:药芯焊丝自保护焊;长输管道;下向焊;工序控制
Application of Flux Cored Arc Welding to Long Distance Transmission Pipeline
WANG Wenyan1,ZENG Jiuling1, SUN Wei2, XIE Xinwen3
(1. ZPEB Construction Groups Corporation, Puyang 457001,China;2. ZPEB International,Puyang 457001,China;3.Zong You Special vehicle Co., Ltd,Puyang 457001,China)
Abstract:Introduced here is the advanced flux cored down weld technology. Based on trial and error and the application in the industry, the author analyzed the impacts of different welding parameters and manual operation technique on the welding qualing,and established the proper welding parameter which match the welding process well and the proper manual operation technique. Additionally, it briefly introduced the impact on the welding quality by pre-weld preparation, pipeline fit up and align, slag removal, equipment metering and process control.According to the application of the technology to long-distance transmission pipeline engineering,it is pointed out the development of the flux cored arc welding technology will be the direction of the welding technology for long-distance transmission huge-diameter pipeline goes in China.
Key words:flux cored arc welding; long distance transmission pipeline; down weld;process control |
