摘要
印度"东气西输管道工程"全长1380km,全线采用API5LX70级高强度钢管,管径φ1219mm(48英寸),三种壁厚17.2mm、20.7mm和25.4mm,中国石油天然气管道局承揽了其中的6个标段,共计1071.5km。工程中首次引进了CRC的全套自动焊设备,该设备性能稳定且填充盖面采用双焊炬,提高了焊接效率,保证了焊接施工进度。管道局研究院焊接中心依据API1104标准及业主规范针对该设备进行了焊接工艺评定工作,为印度工程提供了高效且切实可行的工艺方案。介绍了CRC自动焊设备,并结合工程特点,阐述其焊接工艺及其应用情况。
East-West gas pipeline project of India is scheduled to build 1 380 km,which is constructed with API 5L X70 grade line pipe material. This pipe have an outside diameter of Ф 1 219 mm（42 in.） with three wall thicknesses 17.2 mm,20.7 mm and 25.4 mm. Six spreads of this project approximately 1071.5 km has been undertaken by China petroleum pipeline bureau （CPP）.For this projeet,CPP firstly introduces a set of CRC automatic welding machine.This machine is of stable property and of two welding torches,which obviously improve welding efficiency and make sure the progress of welding construction.Welding research center of CPP did the welding procedure qualification on this CRC machine according to standard API 1104 and owner＇s specification.In this paper,it mainly introduees CRC automatic welding machine,its welding process and application by connecting this project＇s property.
出处
《电焊机》
2007年第11期1-3,20,共4页
Electric Welding Machine
关键词
印度“东气西输”
CRC自动焊设备
双焊炬
焊接工艺
East-West gas pipeline project of India
CRC automatie welding machine
two welding torches,welding process
