焊缝检验规程3-无损检测工艺规程(磁粉检验)

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1、******Co.,Ltd.焊缝检验规程3Rev.:0Page:1of7Title:PROCEDUREFORMAGNETICPARTICLEEXAMINATIONPROCEDUREFORMAGNETICPARTICLEEXAMINATION磁粉检验操作工艺规程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：******Co.,Ltd.焊缝检验规程3Rev.:0Page:2of7Title:PROCEDUREFORMAGNETI

2、CPARTICLEEXAMINATIONDEMONSTRATIONCERTIFICATIONThisistocertifythatthisprocedurehasbeendemonstratedonatestspecimenwithknowndefectstothesatisfactionoftheAuthorizedInspectoraccordingtoT-150ofASMECodeSectionV,asrequiredbyAppendix6ofSectionⅧDiv.1.TestSpecimenNo.:Demo.ReportNo.:NDELevelⅢ:AI:******Co

3、.,Ltd.焊缝检验规程3Rev.:0Page:3of7Title:PROCEDUREFORMAGNETICPARTICLEEXAMINATION1.General1.1ThisprocedureisappliedtothemagneticparticleexaminationofferromagneticmaterialsandweldsforASMECodeitems.1.2Themagneticparticleexaminationmethodissuitablefordetectingcracksandotherdiscontinuitiesonornearthesurf

4、aceinferromagneticmaterials.1.3Thisprocedureisappliedtowetcontinuousmagnetizationbyyoke,whichshallonlybeappliedtodetectdiscontinuitiesthatareopentothesurfaceofthepart.1.4ThisprocedureshallbedemonstratedtothesatisfactionoftheAIpriortoimplementation.2.Personnel2.1TheNDEpersonnelwhoengageinmagne

5、ticparticleexaminationshallbequalifiedandcertifiedaccordingto******Co.,Ltd.’s“WrittenPracticeforNDEPersonnelTraining,Examination,Qualification&Certification”(No.:QCD-011).3.DescriptionofMethod3.1Inprinciple,themagneticparticleexaminationmethodinvolvesmagnetizinganareatobeexamined,andapplyingf

6、erromagneticparticlestothesurface.Theparticleswillformpattermsonthesurfacewherecracksorotherdiscontinutiescausedistortionsinthenormalmagneticfield.Thesepatternsareusuallycharacteristicofthetypeofdiscontinuitythatisdetected.3.2Thesensitivityofthemagneticparticleexaminationisgreatestforsurfaced

7、iscontinuitiesanddiminishesrapidlywithincreasingdepthofdiscontinuitiesbelowthesurface.Therefore,thismethodcanonlybeusedfordetectingthediscontinuitiesonornearthesurfaceofthematerialorpartstobetested.4.MagnetizationEquipmentandCalibration4.1The