电厂换热器弯管远场涡流检测研究  

Research of Remote Field Eddy Current Testing for Bended Tube of Power Plant Heat Exchanger

作　　者：梁鹏飞[1] 陈蔚[1] 严海[1] 周宇[1] LIANG Pengfei;CHEN Wei;YAN Hai;ZHOU Yu(Suzhou Nuclear Power Research Institute,Suzhou 215004,China)

机构地区：[1]苏州热工研究院有限公司,江苏苏州215004

出　　处：《上海电力学院学报》2018年第4期339-342,共4页Journal of Shanghai University of Electric Power

摘　　要：利用远场涡流检测技术对20~#钢弯管上不同位置、不同大小的通孔进行了检测。经过分析对比后发现,弯管对远场涡流检测的信号幅值和相位都有明显的影响,缺陷越小,其信号受弯管影响越大。其中,外弧处的缺陷幅值最小,应作为幅值判伤的基准。Different through holes in bended tube of 20~# steel are tested by RFT. By means of analysis and comparison,through holes in outer arc are found to have a lower signal magnitude,and the value of bending diameter has limited affection to signal magnitude of through holes.

关 键 词：弯管 远场涡流检测技术 幅值 相位 

分 类 号：TH17[机械工程—机械制造及自动化]