汽轮机转子的运输磁化

(,210037):,:;;;:TG115.28:A:100026656(2002)0720307203MAGNETIZATIONOFASTEAMTURBINEROTORTHROUGHTRANSPORTATIONZHONGWei2chang(NanjingGasTurbineResearchInstitute,Nanjing210037,China)Abstract:Accordingtothemechanicalvibrationofasteamturbinerotorinthetransportationbyrailroadandtheen2ergychangeinthemagnetizationanddemagnetizationprocessofferromagneticmaterials,thereasoncausingintenselyspontaneousmagnetizationofasteamturbinerotorafteralongdistancetravelfromthenorthtothesouthoftheearthisexplained.Keywords:Magnetictesting;Steamturbine;Rotor;Magnetization[1],,,,,[28],,[9],,1[9,10],[1](1),(1),:2001209212:(50001006)11.2.3.4.5.()2He(2):(2),[11],70324720027NDTVol.24No.7July2002©1995-2004TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.(,2y)[12],,(2y),,,,2,(3a),,,(3b),[11,12],,(a)(b)32[1],He(1,2)[13],,tS,HeSE[14],E=-r0HeSt(1)r,0,H/m0=410-7E,Si,H,,HiE(2)S,[14],(4a)(4a),(4a),ww=B0HdB(3)4b[13,15]4c4c,aBaBccda,aBaBccba,abcda,,,,Br(5),[3,14],,(a)(b)w(c)4HaBaHaabccda803:©1995-2004TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.(a)[14](b)[3]5|B|||Br,MPa,,,,,3(1),,,Br(2)(3):[1].[M].:,1988.[2]DoubovAA.Studyofmetalpropertiesusingmetalmag2neticmemorymethod[A].7thEuropeanConferenceonNon2DestructiveTesting[C].Copenhagen:1998.920-927.[3]DoubovAA.Diagnosticsofmetalandequipmentbymeansofmetalmagneticmemory[A].ProceedingsofChSNDT7thConferenceonNDTandInternationalRe2searchSymposium[C].Shantou,China:1999.181-187.[4],,,.[J].,2000,22(7):297-299.[5],,,.[J].,2001,23(4):154-156.[6],,.[M].:,2000.[7].2[J].2,1998,(1):53-56.[8],,,.,,[J].,1992,(12):81-87.[9].[A].[C].:1981.[10].2.3kW[J].,1984,(3):26-27.[11],,.[M].:,1964.[12],,.[M].:,1958.[13],.[M].:,1978.[14].2[J].,2001,23(10):424-426.[15],.[M].:,1994.,,(),,903:©1995-2004TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.