挤压铸造技术的最新发展

()100,,,,,,,,,,;;;TG249.2A1001-2249(2007)09-0688-07:2007208207:,,1937,,,210(315103),:13805861662,E-mail:[e-mail](),4,11937,205060,2080,HVSCVSC,,307,35000kN14VSC15002VSC1800,400120,23[13],ArtU2moldToseiSPXAmcast[4],20602090,,,300,10,,1001[5,6]60,,80,200,11,,(),,,,ABS,,,,,,,,,,,;,,;1,2550kg,1200mm400mm300mm,88620072792,,,2.1,,,,(),,,2,5423(h)1,(),,1,(),,,,,[710]21.2.3.()4.()5.,3[11],A356[12]SPX[4]4()[8]31.2.3.4.5.6.41.2.3.4.5.6.7.8.9.5(),AZ91D,[9],,,9865()3,(PLC),,,2.2,,,,,,2090,,[13,14],,(),018m/s,,011014m/s,,015110m/s,,,,,,,,,(),,,,6,,61.2.3.4.5.6.7.2.3,,(),[15,16]UNRC,VSCHVSC,,77UNRC1.2.3.4.5.6.,,(8),[3,17,18]8UNRC(:115kg)DXHVDXV,(ShotSleeve)(9),,,A356A357,(Nissan)[19]0962007279,(),,A356A357ZL117Y112[20,21]91.2.3.4.5.6.7.8.2.4,(CAE),[2224],MAGMAsoft,AngcastingJscast,,,,CAE,,,,[2527],,,3,,,,,,,,[28]3.1,,10DHXV350,ADC14,[29]101.2.3.4.[30],,(11),,11ZL1173.2,,,,[31],12(a)(b)(c)(d)12,:,,;,,;31962,,,45min2min,,MAGMA,,,,[32][33]AZ91D,(13)(a)(b)13AZ91DA.;B.;C.3.3,,,,,[34]()(),ZL108ZL1092,,[35,36]3.4(ZA27,ZA43),,3ZA27,ZA43,[37]2/MPa300/MPa(HB)300/(10-6-1)20CA41ZL10829012011522232.5km,013018mm,ZL1083001601701251618ZL10830015016012016181012km,01100115mm,3ZA27/MPa/%/HB/(gcm-3)450480101015101451655.235.243922.61114.96,,,,,,[38]4,,,2080,VSCHVSC(14,15),,[39]14VSC2090,:,,DXVDHXV(16),;,296200727915HVSC,,[40];,,16DHXV350CL-T4.1VSCHVSCVSC(),315035000kN9800015000kN2,18000kN34,HVSC(,)14008000kN6,,,(3)VSC80mm/s,3HVSC301500mm/s4,,2,,,,4.2DXHVDXV,DXHV,35005000kN,;DXV,135015000kN5,17(a)(b)(c)17DHXV1.2.3.4.5.6.,,,,,,,,2,,,TOSCAST,11,,100,80%,,:3VSC,45s,100,,5V16,30s1,3min1,,,,396,[1].[M].:,1984.[2].21[J].,1988(4):32236.[3]MASASHIU.FeatureofUBEsqueezeprocessandunrcprocess(semisolidcasting)[C]..:,2002.[4].[C]..:,2004.[5],.[C]..:,2002.[6].[J].,2003(1):126.[7],.[J].,2007():2432247.[8],.[M].:,2004.[9],.[J].,2006,26(9):5682570.[10].[C]..:,2006.[11],,.[M].:,2006.[12].[J].,2003(S):1952197.[13],,.[J].,2006,55(10):103621039.[14],.[J].,2005():1642168.[15].[J].,2002(2):20223.[16],.[J].,2003(S):2392243.[17]ADACHM,SATOS.Theeffectofcastingconditionformechani2calpropertiesofcastalloysmadewithnewrheocastingprocess[C].72thInternationalConferenceonSemi2solidProcessingofAl2loysandComposites,2002:6292634.[18]WAHLENA,FRAGNERW.Optimisationofthenewrheocast2ingprocessusingcellularautomata[C].72thInternationalConfer2enceonSemi2solidProcessingofAlloysandComposites,2002:6352640.[19]TAKAOK,RYOICHIS.Developmentofnewsemi2solidmetalcastingprocessforautomotivesuspensionparts[C].72thInterna2tioalConferenceonSemi2solidProcessingofAlloysandCompos2ites,2002:1452150.[20],,,.[J].,2007():2862289.[21].[J].,2007():3342338.[22],.[J].,2005():45247.[23],.[J].,2005():1772179.[24],.JSCAST[J].,2007():4542456.[25].[J].,2003(S):2082211.[26],,.[J].,2007():2482252.[27],.Cult3D[J].,2007():4792481.[28],,.[J].,2004():63266.[29],.[C]..:,2002.[30],.[J].,2007():2662268.[31],.[J].,2005,54(9):8782880.[32].[C]..:,2004.[33].[J].,2007():2592261.[34].[J].,2003(S):18219.[35],,,.[C].1998().:,1998.[36],,,.2SiCp/2A14[J].,2007():2772279.[37],.ZA27[J].,2002():2002203.[38].[J].,2006():2632365.[39].[J].,2003(S):1892192.[40]DAMIAND,NELSONC.Full2sleevesqueezecastingprocessu2singaconventionalhorizontaldiecastingmachine[C]..:,2000.(:)2007102007(ChinaInternationalIndus2tryFair2007,CIF2007)102123(CIF)14,,CIF18000,2007(SubconChina2007)20072007(SPX)4::Semi2solidForming,NumericalSimula2tion,TemperatureField,Viscosity,FillingSimulationofFillingandSolidificationofAluminumAlloyWheelinLowPressureDieCastingSuDawei,ZhaoYutao(SchoolofMaterialsScienceandEngi2neering,JiangsuUniversity,Zhenjiang,China)2007,27(9)682684AbstractThefillingandsolidificationofanaluminumalloywheelinlowpressurediecastingweresimulatedbytheProCASTsoftware.Thesimulatedresultsre2vealthattheliquid2entrappedareaoftenoccursintheintersectionofthewheelribandcollarrim.Basedonabove2mentionedresults,thesimulationwasconduc2tedagainbyadjustingcoolingsystemanditsparame2tersattheintersectionofthewheelribandcollarrimanddecreasingtemperatureofsidemould.Thesimu2latedresultsshowthattheabsenceofliquid2entrappedinmodifiedfilingprocesscanbeobservedduetotherealizationofsequential2solidification.Thetrialpro2ductionverifiesthattheproductiswellinagreementwiththesimulatedresults.KeyWords:LowPressureDieCasting,NumericalSim2ulation,AluminumAlloyWheel,ProCASTSoftware,CastingDefectObservationandInvestigationofAmericanLostFoamCastingYeShengping,WuZhichao(TheStateKeyLaboratoryofDie&MoldTechnology,HuazhongU2niversityofScienceandTechnology,Wuhan,China)2007,27(9)685687AbstractObservationandinvestigationoftheAmeri2canlostfoamcastingweredescribed,especiallyfound2rymarket,lostfoamcastingtechnologies,mouldde2signandnumericalsimulation.Somelostfoamenter2prises,suchas