ASME标准磁粉探伤规程

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1、ASME标准磁粉检测通用工艺规程POE0702-CAL-ST-01CalculationForIn-PlaceStrengthAnalysisForSubmarinePipelinesRev.BEmployer:SONILSLDAEngineer:SCOTTWILSONLTD,UKContractor:CHINAHARBOURENGINEERINGCO.,LTD.Subcontractor:PETRO-OFFSHOREENGINEERINGIssueStatusB30May07App.A16Feb07DraftSQFAXHSSWRev.DateD

2、escriptionPrep’dChk’dApp’dICEREF.CONTENTS1.GENERAL32.PERSONNEL33.DESCRIPTIONOFMETHOD34.MAGNETIZATIONEQUIPMENTANDCALIBRATION35.EXAMINATIONMEDIUM46.MAGNETIZATIONPROCEDURE57.MAGNETICFIELDSTRENGTH58.EXAMINATIONREQUIREMENTS5POE0702-CAL-ST-011.GENERAL1.1Thisprocedureisappliedtothem

3、agneticparticleexaminationofferromagneticmaterialsandweldsforASMECodeitems.1.2Themagneticparticleexaminationmethodissuitablefordetectingcracksandotherdiscontinuitiesonornearthesurfaceinferromagneticmaterials.1.3Thisprocedureisappliedtowetcontinuousmagnetizationbyyoke,whichsha

4、llonlybeappliedtodetectdiscontinuitiesthatareopentothesurfaceofthepart.1.4ThisprocedureshallbedemonstratedtothesatisfactionoftheAIpriortoimplementation.2.PERSONNEL2.1TheNDEpersonnelwhoengageinmagneticparticleexaminationshallbequalifiedandcertifiedaccordingtoNJBSTCo.,Ltd.’s“Wr

5、ittenPracticeforNDEPersonnelTraining,Examination,Qualification&Certification”(No.:QCD-011).3.DESCRIPTIONOFMETHOD3.1Inprinciple,themagneticparticleexaminationmethodinvolvesmagnetizinganareatobeexamined,andapplyingferromagneticparticlestothesurface.Theparticleswillformpattermso

6、nthesurfacewherecracksorotherdiscontinutiescausedistortionsinthenormalmagneticfield.Thesepatternsareusuallycharacteristicofthetypeofdiscontinuitythatisdetected.3.2Thesensitivityofthemagneticparticleexaminationisgreatestforsurfacediscontinuitiesanddiminishesrapidlywithincreasi

7、ngdepthofdiscontinuitiesbelowthesurface.Therefore,thismethodcanonlybeusedfordetectingthediscontinuitiesonornearthesurfaceofthematerialorpartstobetested.4.MAGNETIZATIONEQUIPMENTANDCALIBRATION4.1TheMTequipmenttobeusedisYoke,withTypeCDX-4.4.2CalibrationofEquipment4.2.1Frequencyo

8、fcalibration:EachMagnetizingEquipmentwithanammetershallbecalibrateda