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外文翻译---浇注系统形式和浇口的设计.doc外文翻译---浇注系统形式和浇口的设计.doc -- 5 元

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编号:201311171054505590    大小:45.50KB    格式:DOC    上传时间:2013-11-17
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唐山学院毕业设计-1-英文翻译GatingsystemdesignformsandgateA.mainstreamdesign1.MainstreamRoadSizeRoadendandmainstreamisincontactwiththenozzleinjectionmachine,andtheotherendofshuntconnectedwiththetapersectionofthemobilechannel.RoadmainstreamXiaoduansizeof3.5~4mm.2.HubintheformofmainstreamRoadRoadentrancetothemainstreamXiaoduanandrepeatedcontactwiththenozzleinjectionmachine,isaconsumable,morestringentrequirementsofthematerial,thus,partofthemainstreammoldoftendesignedasaremovablesleeve,thereplacementofthemainstreamform(commonlyknownasthegatesets,saidhereJackTsui),inordertoeffectivelyseparatetheselectionofhigh-qualitysteelprocessingandheattreatment.JackTsuiarestandardparts,justtobuyontheline.CommonjackTsuiintoajackAguilaraskednotcarejackTsuiandtwoundertheformermap,ajackAguilaraskedforcompatibilitypositioningcircle.JackTsuispecificationsareΦ12,Φ16,Φ20,suchasseveral.Asfortheinjectionnozzlesaradiusof20,sojackTsuiforR21.3.Mainstream,thefixedhubBecausetheuseofachildcarejackTsui,usingcirclewithafixedlocationinthemoldofthepanel.Settingcirclesarealsostandardparts,thediameterofΦ120mm,diameterΦ35mm.Specificinstitutionalformasshownbelow:B.shuntdesignInmulti-cavityormulti-cavitygate(plasticpiecesoflargesize)shouldbesetuptriageRoad,shuntisthemainstream,withthegatebetweentheendofthissectionoftheplasticmeltflowchannel.ItispouringinmoltenstatesystemofplasticintothecavityfromthemainstreamRoad,throughthecross-sectionalareaandthechangesintheflowoftransformationforthesmoothtransitionoftheflowpattern.Therefore,shouldbedesignedtodivertthepressuretomeetagoodtransferandmaintaintheidealstateoffillingandintheprocessofmovementofpressurelossaspossible,canmeltplasticbalanceddistributiontothevariouscavity.1.MainshunttheshapeandsizeRoadmapisthemainstreaming(6)intheintakelevelofunder-flow.唐山学院毕业设计-2-InordertofacilitatetheprocessingandcondensateexpectedStripping,shuntinstalledinmostofsub-surface,theshuntisgenerallycircularcrosssectiontrapezoidalshapeofU-shapedsemi-circularandrectangular,engineeringdesignoftenusedtrapezoidalcross-sectionprocessingtechnologyisgood,andtheplasticmeltingThelossofheatflowresistancearenotlarge,generallyusingthefollowingformulatodeterminetheirexperiencesectionsize:TypeB-ladderinthebottomedgeofthewidth(mm)m-weightplasticparts(g)L-segregation,thelength(mm)H-ladderheight(mm)Thebevelsideofaladderoftentake50-150,intheapplicationof(-1)shouldpayattentiontoitsscopeofapplication,thatis,plasticpartsinthethicknessof3.2mmbelowtheweightoflessthan200g,andtheresultsintherange3.2-9.5mmTheonlyreasonable.Theelectricalinsulationforthevolumeofplastic-3221.7324mm3,thequalityofabout4g,thelengthofsegregation,isexpectedtodesigna140mmlong,andtherearefourcavity,so:FromBto8mmFromHto5mmSmalltrapezoidalbottomwidthfrom6mm,anditssideperpendiculartothesurfaceatthedirectionofabout100percent.Inadditiontheuseoftheoutletplate(thatis,wearetalkingaboutthetemplatesandthemiddleoftheplatewithaplatebetween),theshuntmustbemadetrapezoidalcross-section,fordiversion,andmainstreamLiuNingRoadStripping.Actualreal-timeprocessing,commonlyusedcross-sectionthesizeoftwotrapezoidalchannel,alargemodel,asmallmodel.Asshownbelow:2.LengthofthemainshuntShunttoasshortaspossible,andlessbending,injectionmoldingprocessforthemosteconomicuseofrawmaterialsandtheinjectionofenergyconsumption,reducethepressurelossandheatloss.Roadwillbedivertedstraightintothedesign,thechiefof140mm.3.ThedesignofshuntRoaddiversionofthemainstreamingofthetwoterritories,followingtheflowshape唐山学院毕业设计-3-Deputyshuntintheverticaldirectionoftheflowonthetaperofthetaperforunilateralism,20,theverybottomdiameterofφ6mm,thelevelofthedirectionofflowfromtoptobottomtwofloorsofthediameterofφ4mm,thesevaluesarebasedonexperience,thetotallengthof38.15mm.4.ShuntthesurfaceroughnessAsshuntincontactwiththeouterlayerofplasticmoldrapidcooling,onlythecenteroftheplasticmeltflowbetter,becauseofsegregation,theinnersurfaceroughnessRadoesnotrequireverylow,generallyfromabout1.6μmcan,Thisisnotjustthesurfacesmoothandhelpmelttheplasticoutercortexfixedcooling,andthecenterofthemeltbetweenthepoorhaveacertainspeed,toensurethatthemeltflowisappropriatewhentheshearrateandshearheat.Actualprocessing,millingmachinesusedtoflowMillingRoad,lessfortheprovincetodie,savedprocessingtextureonthetrip.(ProvinceDie:manufacturingmoldaveryimportantprocess,generallyequippedwithaprofessionalwomendieprovince,withgrindingmachine,sandpaper,Whetstone,suchasgrindingtoolswillmoldcavitysurfacepolished,Moliang,lowercavitysurfaceroughnessDegrees.)5.ShuntlayoutformShuntatthesurfaceofthearrangementandtheforegoingcavityarecloselyrelatedtoavarietyofdifferentformsoflayout,butshouldfollowtwoprinciples:thatis,ontheonehandwithtight,narrowplate-sizemoldtheotherprocessesTheshortestpossible,theclampingforcetobalance.TheflowofthemoldformabalancedlayoutC.GateDesignGate,alsoknownasthefeedmouth,isconnectedwiththecavityoftheRoaddiversionchannel,inadditiontodirectgate,itwaspouringsysteminthecross-sectionofthesmallestpart,butitisakeypartofgatingsystem,gatelocation,shapeandsizePlasticpiecesofperformanceandqualityofgreat.1.SelectionofgateGatecanbedividedintorestrictiveandnon-restrictivegatetwo.Wewilladoptrestrictivegate.Ontheonehandthroughthegateofrestrictivecross-sectionalareaofthesuddenchangetoshuntthetransmissiontoproduceplasticmeltflowrateofacceleration,improvetheshearrate,makingitidealstateofthemovement,fullofrapid-balancedcavity,anotherImproveplasticsmeltintothecavitywhentheflowcharacteristics,adjustinggatesize,willenablemulti-cavityatthesametimeisfull,cancontrolthe唐山学院毕业设计-4-fillingtime,thecoolingtimeandsurfacequalityofplasticparts,alsoplaysaclosedcavitytopreventplasticmeltTurntheclockback,andtofacilitategatecondensatematerialsandplasticpiecesfromtherole.Weusethesidegate.Gatealsoknownastheedgeofthesidegate,thegateabroadasthestandard.Sidegateopeninthegeneralclassificationlevel,theplasticmeltsinthecavityfilling-side,therectangularcross-sectionshapeformorethanslit,toadjustitscross-sectionofthethicknessandwidthadjustmentcanmeltinjectionattheshearrateandGateclosingtime.Thislampgateprocessingeasy,convenientdressingandplasticpartscanshapefeaturestheflexibilitytochoosethefeedposition,soitisawidelyusedformofagate,thewidespreaduseofplasticpartsinsmallandmedium-sizedmulti-cavitymold,Andtheadaptabilityofvariousplasticmoldingarestrong,buttherearetracesofthegate,aweldmarks,Shrinkage,stomataldefects,suchasplasticparts,injectionandpressureloss,thedeepcavityplasticpartsexhaustinconvenience.Thespecifictomold,formandsizeofitsgategatesizesarefromallpartsoftheexperienceofvalue.2.GatelocationofchoiceDiedesign,locationandsizeofgateofthemorestringentrequirements,apreliminarytestmodeafterthegatesizeneededfurtherchanges,nomatterwhatthegate,openeditslocationontheplasticpartsmoldinggreatimpactonthequalityandperformance,pouringareasonablechoiceIopenedthelocationisanimportantlinkinimprovingquality,thelocationofdifferentgateatthesametimealsoaffecteddiestructure.Inshorttomakeplasticpartswithagoodperformanceandappearance,wemustseriouslyconsiderthechoiceofgateposition,usuallytoconsiderthefollowingprinciples:1)minimizetheflowofdistance.2)gateshouldbeopenedinthemaximumwallthicknessplasticparts.3)theneedtominimizetheweldmarks.4)shouldhelpingasfromthecavity.5)considerationofdirectionalinfluence.6)avoidjetandwiggle.7)thegatetoavoidbendingandtheimpactload.8)attentiontotheappearanceofquality.Accordingtothecharacteristicsofplasticparts,consideringmorethanafewprinciples,pouringintoatriagepoint,abitontheline,Point2pouringintotheshuntopeninthepost-die-on.
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