钢轨打磨原理及其应用

200031(65)JOURNALOFRAILWAYENGINEERINGSOCIETYMarch.2000No.1(Ser.65):1006-2106(2000)01-0028-06XXX(,330013):():,,,,:;;:213.4:A[5],,,,,,,[1-3],()1930,,40,,,,,,80,,[4],,:(1),;(2),;(3),1()(),1.1:,,,,,,,,1.2,1(a)XXX1999-12-0119568,1(b),1,:,,,,,:(1);(2);(3),,,,,,10MGT(MillionGrossTon),20MGT,,,,270[1]80,,,,,,,,2,,3,,70-80%23,,,3,,,,,,,4,,,,[6],,,,4,,,,921:4,3060cm,2,,,,,,[2],,,,5,,,,,,,,,,,,,,,,,,11FAST,,80100MGT(,100t),10,1000MGT,,,5%180MGT,,80100MGT180MGT,,1000MGT,1(MGT)5%10%501001000180200,,FAST,,,300400MGT6,,,,,,,6.1,7080%5[3]FASTFAST,6[1],,,6.2,7198419950320003,19831988,,19881990,,,650;19901991,,,19955676.38,6,8,30%,,8,6.4,,9,0.05,9,,,,,7dB6.5,,,131:,,,,,50%300%,,10,,,500%,,,95%107,,,,,,,,,,,,,,,,,,QP(Q,P),11,,,,,,,12,,0.2;,0.4;,0.6,1112,,,,,0.50.68,,,,,,,,,2320003,,2,2():,,,,,,,(),,,,,,,,,,,,,[1]ZarembskiAM.Onthebenefitsofrailmaintenancegrinding[R].AREABulletin,760.[2]ButlerRW,etal.Criteriaforrailgrinding[A].ReportofspecialcommitteeNo.3,ProceedingsoftheRoadmastersandMaintenanceofWayAssociation,93rdAnnualConference[R].September1981.[3]ZarembskiAMTheevolutionandapplicationofrailprofilegrindings[R],AREABulletin,718.1988.[4]RailGrindingEquipment:TraditionalandModern[M].SpenoRailSerivces,TechnicalNotesNo.7,1986.[5].[M].,1990.[6].[M].,1998.PRINCIPLEFORRAILGRINDINGANDAPPLICATIONLEIXiao-yanEastChinaJiaotongUniversityAbstract:Twotypesofrailgrindingtechniqueswhicharewidelyemployedabroadarecomprehensivelydealtwithinthispaper.Emphasesaredevotedtodescribetheprinciple,thescope,aswellasbenefitsanddefectsofthepreventivegrindingapproach(profilegrinding).It’spointedoutthatthewear,fatigueandcorrugationcaneffectivelybecontrolledbyporfilegrindingsothattheinteractionofwheelandrailisimprovedandassociatedimpactloadsandnoisearereduced,aswellastheraillifeisextended.Keywords:steelrail;trackmaintenance;railgrinding,:,,,,,()331: