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1、NJBSTCo.,Ltd.QCD-013Rev.:0Page:1of12Title:ULTRASONICEXAMINATIONPROCEDUREULTRASONICEXAMINATIONPROCEDURE超声波检验工艺规程CONTROLLED在控本□UNCONTROLLED非在控本□COPYNO副本编号:PREPAREDBY编制:DATE日期:REVIEWEDBY审核:DATE日期:APPROVEDBY批准:DATE日期:NJBSTCo.,Ltd.QCD-013Rev.:0Page:2of12Title:ULTRASONICEXAMINATIONPROCE
2、DUREDEMONSTRATIONCERTIFICATIONIherebycertifythatthisprocedurehasbeendemonstratedonatestspecimenwithknowndefectstothesatisfactionoftheAuthorizedInspectoraccordingtotheASMECodeSectionV,T-150asrequiredbySectionⅧDiv.1.UW-53andAppendix12.TestSpecimenNo.:Demo.ReportNo.:NDELevelⅢ:AI:NJBS
3、TCo.,Ltd.QCD-013Rev.:0Page:3of12Title:ULTRASONICEXAMINATIONPROCEDURE1.SCOPEOFAPPLICATIONThisprocedureiscompiledinaccordancewiththerequirementsofASMECodeSectionVandSectionⅧDivision1.1.2Inaccordancewiththisprocedureapulse-echotypeofultrasonicinstrumentshallbeusedforCodeproductexamin
4、ation.Singleprobe,anglebeamscanningshallbetheprincipalmethod,ifnecessary,straightbeamscanningmayalsobeused.1.3Thisprocedureisapplicableforultrasonicexaminationofbutt-welded,fullpenetratedjointinwrought(rolled,drawn,forgedorextruded)materialwiththicknessequaltoorgreaterthan5/16in.(
5、8mm)detecting,locatingandevaluatingthereflectorsfromtheweldmetal,heataffectedzoneandbasemetaladjacenttheweld.1.4Ultrasonicexaminationofsinglesideweldedpartialpenetratedweldsandausteniticsteelweldsarenotconsideredtobewithinthescopeofthisprocedure.1.5Unlessotherprocedurehasbeenappro
6、vedandacceptedthatmayspecifyparticularrequirements,ultrasonicexaminationrelatingtomethod,evaluation,anddetailedtechniqueandrequirementshallbeinaccordancewiththisprocedure.2.NDEPERSONNEL2.1NDEpersonnelshallbequalifiedandcertifiedaccordingtoNJBST’SWrittenPracticeQCD-011basedonSNT–TC
7、-IA(CurrentCodeAcceptedEdition).3.GENERALEXAMINATIONREQUIREMENTS3.1ExaminationcoverageThevolumeshallbeexaminedbymovingthesearchunitovertheexaminationsurfacesoastoscantheentireexaminationvolume.Eachpassofthesearchunitshalloverlapaminimumof10%ofthetransducer(piezo-electricelement)di
8、mensionperpendiculartothedirectio
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