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ID:32923831
大小:14.89 MB
页数:246页
时间:2019-02-17
《Electromagnetic Testing-Chapter 3 Electromagnetic Testing - Paul E》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、ElectromagneticTestingChapter3-ElectromagneticTestingMyASNTLevelIIIPre-ExamPreparatorySelfStudyNotes6thApril2015CharlieChong/FionZhangSubmarineApplicationsCharlieChong/FionZhangSubmarineApplicationsCharlieChong/FionZhangSubmarineApplicationsCharlieChong/FionZhangSubmarineApplicationsCharlieChon
2、g/FionZhangSubmarineApplicationsCharlieChong/FionZhangSubmarineApplicationsCharlieChong/FionZhangSubmarineApplicationsCharlieChong/FionZhangSubmarineApplicationsCharlieChong/FionZhangCharlieChong/FionZhangFionZhangatShanghai6thApril2015http://meilishouxihu.blog.163.com/CharlieChong/FionZhangCha
3、rlieChong/FionZhangCharlieChong/FionZhanghttp://greekhouseoffonts.com/GreekletterCharlieChong/FionZhangIVONATTSCapable.CharlieChong/FionZhanghttp://www.ivona.com/en/Chapter3-ElectromagneticTestingPaulE.MCharlieChong/FionZhangChapter3.ELECTROMAGNETICTESTINGMETHODIntroduction;Thischapterdescribes
4、eddycurrent,leakageflux,andmagnetoelastictechniques.Eddycurrenttestinginvolvestheuseofalternatingmagneticfieldsandcanbeappliedtoanyconductor.Leakagefluxtestinginvolvestheuseofapermanentmagnet,DCorACelectromagneticfields,andcanbeappliedonlytoferromagneticmaterials.Ineddycurrenttesting,thealterna
5、tingmagneticfieldsetsupcirculatingeddycurrentsinthetestpart.Anyparameterthataffectstheelectricalconductivityofthetestareacanbedetectedwiththeeddycurrents.Withthefluxleakagetechnique,anydiscontinuitythatproduceslinesofleakagefluxinthetestareacanbedetected.Themagnetoelastictechniqueisusedforchara
6、cterizinganddeterminingtheamountofresidualstressinmagneticmaterialsbymeasuringmagneticor“Barkhausennoise.”CharlieChong/FionZhangIntroductiontoNondestructiveTesting:ATrainingGuide,SecondEdition,byPaulE.MixThesetechniquescanbecombinedwithothermethods,suchasultrasonictestingandlaserdimensionalmeas
7、uringtoachievemultifunctionhigh-speedtestingofoilfielddrillingpipesandotherpipingsystemsthataresubjecttostringentoverallqualityrequirements.High-speedautomatictestingispossibleusingmultipleNDTmethodsbecausetheycanbeelectronicallyg
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