磁悬浮列车用定子固定梁型材开发

20074,,(,200949):()S355N,126kg/m,,,,,,:;;;;:TG335.4+4:B:1008-0716(2007)04-0060-04DevelopmentofFixedBeamProfilesofStatorforShanghaiMaglevGuYouming,LiangBaoxiang,LiuZhizhong(ProfilePlant,PudongIron&SteelCo.,Ltd.,Shanghai200949,China)Abstract:Pudongiron&steelCo.Ltd.isoneofthefirstmanufacturersthatsuccessfullydevelopedandpro2ducedprofilesusedforShanghaiMaglevsfixedbeamforstatorsinbatches.TheproductismadeofsteelgradeS355anddeliveredinnormalizingcondition.Astheprofilesectionweightreaches126kg/m,itbelongstogiantone.Forthepurposeofbreakingtherollingcapabilitylimitationsofamediumsectionmillusedtorollgiantprofiles,throughanalyzingandreasonablydividingtheprofilescross2section,themethodforcalculatingtherollingforcehasbeensimplified,whichprovidedbassisforreductiondistributionintherollpassdesign.Withthehelpofmulti2pass,smallreductionandadequatepasssystem,theproblemthatthetotalstretchcoefficientistoosmalltoshapeproductshasbeensolved.Keywords:profile;rollpassdesign;groove;passsystem;heavyprofile030km,8min,400km/h,,,T,,,,11.1DINEN101131993196219832609868912DIN171021983S355N11.221.3(1),,320mm,,181.4ASTMA4351982,,SEL072197733SEL0721977331.506©1994-2007ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.=C+Mn/6+(Cr+Mo+V)/5+(Ni+Cu)/150.43%2S355NTable2MechanicalperformancerequirementsofS355N/MPas/MPa35T5050T755min/%T100/mmT100(-20)/J10T150490630345335222a3a3921T1(:mm)Fig.1Testsectionofprofile3Table3lnspectionjudgementstandard/m2/m2/(m-2)00.50010.514220.51301531.01010541.0105030510.010011/2610.010053/222.1:6302.2(1):175mm295mm,34,2360+200mm40t(2):120050105050,2.5h,(3):,(4):,(5):,3091+500mm(6):,(7):(8):3,16©1994-2007ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.:(1)160mm(290300)mm;(2),:5311,10;(3)2.9,10,1.112,,:(1),,,2.041,(2),,,(3),,,,,,3.2,,,(2),,,2Fig.2Acomplexsectiondividedinto3simplepartspS.Ekelund[1],,:p=(1+m)(K+)(1),m,m=(1.6f(Rh)-1.2h)/(H+h);,=0.01(14-0.01t);,=(2v(h/R0.5))/(H+h);K,K=(14-0.01t)(1.4+C+Mn);R;h;f;H,h;t;vEXCEL,,,175mm,160mm15mm,3.3++,630X2/632X2,5311,10,3.16,[2],,33Fig.3Rollpasssystem3.4,,,,,,,,,,K9K7K10,K7K10,,26©1994-2007ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.:(1)K10.5mm;(2)K3K1,R,5700,76.99%4.2,S335N,,,44Table4Measuredmechanicalperformanceofprofile/MPa/MPa35T5050T755min/%T100(-20)/J3921S355N52039038730.3197166,,,5(1),;(2),,,;(3),1,2[1].[M].:,1980:391-393.[2],.()[M].:,1960:423-434.(:2006-11-09)(:2007-03-09)(36),,,,,,,,(:2006-10-23)(:2007-03-15)36©1994-2007ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.