磁记忆检测在压力容器检验中的应用

,,,,(,330034)(,330029):,,,,,,:;;:TG115.28:A:100026656(2003)0520247203APPLICATIONOFMAGNETICMEMORYTESTINGTOPRESSUREVESSELGAOChun2fa,HUANGChang2guang,SONGKai(NanchangInstituteofAeronauticalTechnology,Nanchang330034,China)LIUWei2cheng,ZHANGLu2gen,XIAOZhong2qun(Inspection&ResearchInstituteofBoilerandPressureVessel,Nanchang330029,China)Abstract:Magneticmemorytesting(MMT)basedonmagneticmemoryeffectofferromagneticitemsisanewnondestructivetestingtechnique,whichisabletodiagnoseferromagneticitemsinearlystage.Itcanbeusedtodetectthestressconcentrationzonesinitems.Regulationofstressconcentrationhasbeenobtainedfromthesteelsamplesloadedsimulatingpressurevesselitems.Experiencehasbeenachievedintheinspectionofsuperhigh2pressurecrystalreactorandrailwaytankcars.Itcanbeex2pectedthatmagneticmemorytestingtechnologyhasgoodprospectsinthepre2examinationofpressurevessels.Keywords:Magneticmemorytesting;Pressurevessel;Stressconcentration,;,,,,,,(),,:2003202217:(01063);(Q01210),,,,[1],50%,(),,,[24]1,,74225520035NDTVol.25No.5May2003©1995-2003TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.,,,,;;(),,,,(),,2,HP(x),HP(y)HP(y),,3mmQ2356mm35,0.02mm,A,B,C(1),,,,()Hp(y),:(1)Hp(y),21,2Hp(y)(20.5),,Hp(y)(2)Hp(y),33mmQ235,[5,6]3,,,45,,,/s0.30.4,Hp(y),,3Hp(y)(3),,Hp(y),Hp(y),,,,,(4)(),,(842:©1995-2003TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.)(),,35Hp(y)Hp(y),,,,,3,,,,3.1,,,137167MPa,380400,180280mm,75110mm,70843CrNi2MoVPCrNi3MoVA,,,;;:4(1)73300mm(4),170mm,50mm;,650800mm300250mm;300650mm,400mm120mm,12mm,+20dB5573(2)GYF2258822022008,(6),8mm,Hp(y),,1020mm,3040mm,,12mm6,,,11,150mm83mm,29mm,-15.3dB,,300mm90mm,-19dB;GYF2250A2008917224mm,,,3.2,,,Hp(y),Hp(y)(268)942:©1995-2003TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.,,[2]742000,4.63%,62.13%,22.22%19982000,5,,5%19986121650123718216.73199931706514710510.00200031523689375.108,,,,,,:[1]..[M].:,1994.[2].[R].:,1986.(249)1200mm,400A/m,;,,Hp(y),,,Hp(y),,4(1),,,(2),,,:[1].[Z].:2002.[2],,.[M].:,2000.[3].[Z].:2002.[4].21NDT[J].,2000,(9):44-45.[5],,.[Z].:2002.[6].[Z].:2002.(263)[2]JB47301994,[S].[3]GB33231987,[S].[4]ASMECodeSecNDE,Art2,RadiographicExamination[S].[5]ASMECodeSecNDE,Art22SE747,StandardPracticeforDesign,ManufactureandMaterialGroupingClassificationofWireImageQualityIndicators(IQI)UsedforRadiology[S].[6],.A[M].:,1988.100-103.[7]LiYan.Areviewofstandardsforradiographicexamination[J].INSIGHT,1997,39(10):707-711.862:©1995-2003TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.