690镍基合金换热管对接焊接工艺  

Research and development of butt welding techn-ology for 690 nickel base alloy heat exchange tube

作　　者：杨小杰 张丹萍 戴德平 YANG Xiaojie;ZHANG Danping;DAI Deping(Dong Fang(Guang Zhou)Heavy Machinery Co.,Ltd.,Guangzhou 511455,China)

机构地区：[1]东方电气(广州)重型机器有限公司,广东广州511455

出　　处：《电焊机》2021年第7期66-69,I0006,共5页Electric Welding Machine

摘　　要：以镍基合金换热管(SB-163 N06690,尺寸φ19 mm×2.5 mm)的工艺研发为例,全面介绍该焊接工艺的开发过程,包括适用实际工况的焊接设备选型,焊接坡口的设计、试验与优化,焊接工艺参数的开发,必要的工装设计,焊接接头的检验,以及破坏性试验。通过工艺开发获得了高质量的焊接接头,各项指标验证符合使用要求,节约了大量工程制造成本,可在类似焊接接头上进行推广应用。Taking the welding technology research and development of nickel base alloy heat exchange tube(SB-163 N06690,sizeφ19 mm×2.5 mm)as an example,the develop-ment process of this welding technology is comprehensively introdu-ced,including the selection of welding equipment suitable for actual working conditions,design,test and optim-ization of welding groove,development of welding parameters,necessary tooling design,inspection and destructive test of welded joints.Through the technology development,the high quality welded joints are effectively obtained,the indexes are verified to meet the use requirements,and a lot of engineering manufacturing costs are saved.It is hoped that this welding technology can be popularized and applied in similar welding joints.

关 键 词：民用核设备 镍基合金换热管 焊接接头 焊接工艺 

分 类 号：TG457.19[金属学及工艺—焊接]