发动机缸体模具设计

1122(1.;2.),(35mm),,,,,,,,;;TG249.6;TG241A1001-2249(2010)01-0094-03DOI:10.3870/tzzz.2010.01.028,,,,1[1]11,,,,:,;,(V)(2),,,;,,3,,,,,,,,4(5),,4,:2009208217;:2009210211:(8151802904000001):,,1976,,,1068(518029),:0755-25859171,E-mail:[e-mail][1],,,.CuCoBeTiZr[J].,2003,28(8):23227.[2].NiCoBe[J].,1998,23(3):12224.[3],.Be2Ni2Cu[J].,1996,21(1):39241.[4].[J].,2001(3):41244.(:)49201030123,,,,,[2]456,,ag7,7g,,,,,,,,,,,[3]67,b,cf,,,,,,,ad4,,,ead,,,,,,,2UGCAD,,,,,,[4],,,7gg(8),,,,:,,,598g,,,33,,[5],,99a9d,9e9f,,,,(a)1(b)2(c)3(d)4(e)(f)9,,,,,,,,,(9f),,,,,,4(1),(2)UGCAD,[1],,.[M].:,2004.[2].[J].,2007,56(2):53257.[3].CADBFL[J].CAD/CAM,2005(3):74276.[4],,.UG[J].,2008,35(5):17219.[5].[J].,2008,57(10):107821080.(:)200920091117,2009,700,,,,(200912)692010301ofmoreeffectiverefinementofprimaryAlphaseandmorefullmodificationofeutecticSiphase.A356alloycontaininghighSiandMgelementexhibitsmoresen2sitivetorefinementandmodification,tensilestrengthandelongationofT6treatedalloyreachupto320MPaand8.0%,respectively,increasedby18.6%andby35.6%,respectively,comparedwiththoseofT6trea2tedalloywithlowSiandMgelement.KeyWords:A356Alloy,ConstituentAdjustment,Allo2yingElement,MechanicalPropertiesFailureOriginationandCountermeasuresofBerylliumBronzeforMouldZhangGuojun,ZhouShuijun(XinyuChangchengCopperProductDevelopmentCo.,Ltd.,Xinyu,China)2010,30(1)00920094AbstractFailureoriginationofberylliumbronzefore2lectronictrade,diecastingpunchandprecisioninjec2tionwasdescribedbyanalyzingdifferenceofmicro2structureofvariousberylliumbronzesbasedonequi2libriumdiagram,andcountermeasureswerepresen2ted.Throughadjustingconstituentintheberylliumbronze,controllingkeyprocessesincludingmeltingtechnology,meltingprocess,heatingtechnologyandheattreatment,andanalyzingchemicalcompositionintheingotbyXRD(X2raydiffraction)toensurecom2positioninapermissiblerange,thequalifiedberylliumbronzewithhighpropertieswassuccessfullypre2pared.KeyWords:BerylliumBronze,Mould,FailureOrigina2tionMouldDesignofEngineCylinderJiangJunxia1,LiuBai1,WuZhichao2,ChenLiliang2(1.DepartmentofInformationControlandManufacturing,ShenzhenIn2stituteofInformationTechnology,Shenzhen,China;2.SchoolofMaterialsScienceandEngineering,Hua2zhongUniversityofScienceandTechnology,Wuhan,China)2010,30(1)00940096AbstractEnginecylinder,asoneofthekeypartsfortheengine,isatypicaldifficult2formingcomplicatedpart,whichexhibitsthefeaturenotonlylargersize,complexstructure,thinwallwithun2eventhicknessbutalsonarrowprocessingmethodandmanyinfluen2cingfactors,soitissuitableforproductionbyLFC(lostfoamcasting).Moulddesignisakeyprocedureinproducingenginecylinder.Thedesirabledesigncannotonlyreducetherequirementsforproductioncondi2tions,butalsoimprovethequalifiedrateandcompre2hensiveperformanceoftheparts.ThemouldforLFCenginecylinderwithexcellentstructurewasdesignedbyconsideringthefeaturesofthepartsandconven2ienceofnext2manufacturingcombiningwiththechar2acteristicsofLFCmould,whichisbeneficialforim2provingthequalifiedrateandcomprehensiveperform2anceofthecylinder.KeyWords:LFC,EngineCylinder,MouldSponsors:FoundryInstitutionofChineseMechani2calEngineeringSocietyEditorinChief:YuanZhenguoPublisher:JournalAgencyofSpecialCasting&NonferrousAlloysAddress:Unite22401,Block1,Qianxiyuan,WansongyuanRoad,Hankou,Wuhan,HubeiProvinceofP.R.CTel:008622728535820685486024Fax:0086227285358127E2mail:[e-mail]://(P.O.Box399.Bei2jingChina)CodeNo:BM6644(ISSN100122249/CODEN:TZJHEE)StartPublication:1980