大口径长输管道CRC全自动焊接工艺研究  

Research on CRC Automatic Welding Procedure of Large-diameter Long-distance Pipeline

作　　者：王少锋 胡建春[2] 

机构地区：[1]华南蓝天航空油料有限公司,广东广州510470 [2]中国石油天然气管道第二工程公司,江苏徐州221008

出　　处：《压力容器》2013年第8期75-79,共5页Pressure Vessel Technology

摘　　要：CRC是美国CRC-Evans国际管道公司生产的一种管道全自动焊接设备,该技术代表着管道自动焊接的国际水平。为满足中亚天然气管道C线工程对管道焊接质量的要求,对现场使用的CRC全自动焊接工艺进行了研究。在最终选定的焊接工艺参数条件下对钢管进行了焊接,并对焊接接头的力学性能和宏观金相进行了评定。试验结果表明,接头的各项性能指标均符合API 1104—2005标准,选定的焊接工艺能够满足现场自动焊施工的技术要求。最后对CRC现场焊接的技术要点和经济效益进行了分析。目前,此工艺正应用于中亚天然气管道C线工程,取得了较好的焊接效果。CRC is the world＇s most advanced pipeline automatic welding technology,which represents the international level of the pipeline automatic welding. Taking CRC automatic welding technology used in Central - Asia Natural - Gas pipeline C line engineering as the research object, the pipeline steel was wel- ded under the selected welding technical parameters, and mechanical properties and macro - microstruc- ture of the joints were tested. The testing results show that the welding procedure is appropriate, and the joint＇s performance can meet the requirements of standard API 1104--2005. Finally,the technical points of the CRC field welding and the economic benefits were analyzed. This technology is currently being ap- plied to the Central -Asia Natural -Gas pipeline C line engineering and has got good welding quality.

关 键 词：CRC全自动焊 焊接工艺 力学性能 宏观金相 

分 类 号：TH131.2[机械工程—机械制造及自动化] TE832[石油与天然气工程—油气储运工程]