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超声导波技术检测管道腐蚀的波形特征与识别.pdf

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NDT , ( 江苏省特种设备安全监督检验研究院, 南京 2 10002) ( 扬子石化公司, 南京 210048) : 叙述了超声导波检 管道腐蚀的机理, 介绍了管道多种腐蚀导波检 的特征波形及管 道导波检 腐蚀的识别经验经实践验证, 所述方法实用, 减少了误判率 : 超声导波检 ; 管道腐蚀导波特征; 识别准则 : T G 115. 28 : A : 2007) The Waveform Characteristics and Identification of Ultrasonic Guided Wave for Pipeline Corrosion Testing CAI Guoning ( Jiangsu Provin e Spe ial Equipment Safety Supervision Inspe tion Institute, Nanjing 210002, China) ZHANGBinghua, AN Ximing ( Yangzi Petro hemi al Industries Co. Ltd. , Nanjing 2 10048, China) Abstract: Ultrasoni guided w ave have some advant ages in dete ting orrosion of inservi e pipelines. It is introdu ed in this paper about hara terist i waveform of ultrasoni guided w ave dete t ion of pipeline orrosion, whi h is onvenient for professional to identify smaller defe t s. By a large number of pra ti e in ultrasoni guided wave dete tion, some experien es in identify ing orrosion of ultrasoni guided w ave dete tion were summarized, whi h have been validated in pra ti e, de reasing rate of faulse alls. Keywords:U ltrasoni guided w ave testing; Chara teristi of guided w ave for orrosion; Ident ifying rule , [ 1] , ( 1) , , ( ) , , , 100% 10 min , , , , 1 Wavemaker SE16 15. 24 m , 20 , 1 : 2 : ( 1961- ) , , , 20~ 100 kHz 372 2007 29 7 蔡国宁等: 超声导波技术检 管道腐蚀的波形特征与识别 NDT 无损检 , SH SV [ 2] Silk Bainton , [ 3]
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