外文翻譯--新型注射成型技術(shù).doc

外文文獻(xiàn)Itisthenew-typeinjectbyshapingtechnology1.injectbyshapingaltogether(injectshapingofatcorelayers)Adoptandinjectshapinghelpandobserveandmakeoneuniquestructurealtogether.firstofplasticisinjectedandfillandentersometypesfirst,thentheplastic:secondfollowfirstinjectpersonwhoenteroneandkeepinitialtodrivepressurefieldofflowingclosely.Atepidermisdistrictandcorethesizesofone,measureandpublishfirstandthematerialsquantitiesofsecondaccordingtocorrectproportionaterelationship,Makeoneatfirstcompleteatsecondtomakeoneparcelappearancecoreeach.Inaddition,incosmeticsapplication,thematerialisputaftersecondmaterialinjectingtohavefirstofepidermisofthesmallpart,Sothattheepidermisofthepartoftherunnercanbetotallyclosed.Injectmakingoneofshapingaltogetherwiththeresinof2kindsofdifferentcolors,formapieceofalayerofblocksofepidermisandcoreapttodistinguish(Realizeinjectshapingoneasmuchasallhaveandhaveandoneverymuchimportantthiscoresimilarepidermis.)Ifthereisnotadvanceddetectiontechnique,usuallydifficulttodistinguishtheepidermis-coreareaandboundaryoflayer.Injectshapinganewtechnologyaltogether.Britishicicompanybegantousethistechnologyinthe1970searly,andhadmadethebasictheoryofincluding,Produceseveralpatents,suchastheproductsandmachineryequipment,etc.Nowsimilartomouldmouldsandwicheswhathasbeenadoptedgenerallyiciproductiontechnologies,lastouterthematerialsoftheepidermisatmouldsandinlayersismaterialdifferentoncoreoccasionally,Sotwoakindofmaterialpersonwhoacertainoneinclusives,andcorerequireandhavehighradiationsvery,issueandsteepshapingandretrieveperformanceofutilizingetcat100%bylayersofmaterial.Shouldbefixedrelativelybytheexcellentchoicetoselectthematerialforuse.Afterinjectingtheshapingtechnologyandcomeoutin15altogether,canreallyjustpopularizeandpopularize.Oneakindofadoptionsinjectthethickteethofshapingfailsandproduceshorizontalcross-sectionaltogether.Materialtopacknylonepidermis,andpearlmaterialpackthenylonat-glasslayersofmaterialcore.Aratethatshrinksmaterialofpearlofglassisextremelylowincoreone,havegoodsizestabilities.Nylonpreventpearlfromgrainsofmaterialeasyproblemofdenudingthatproducesbyepidermispersonwhogivegoodandlubricatedtoothtoothgearwheel.Alreadydevelopedseveralkindsandprocessedthemethodofimprovingnew-typlyatpresentonthebasisofthebasictheoryofinjectingshapingaltogether.Athowever,inthemouldandgasassistpaintmouldmould.Mouldhaveandpaintprocessingmethodtoadoptlowmolecularweightpolymersastheoutermaterial,Gasassistmouldmouldshapingtoadoptthenitrogenoranotherkindofgasasthecoreone(orcoreones)material.Produceandprocessequipmentconstanttoperfectandimprove,satisfyofdifferentusenewlyandthenewtechnologiesdemandswithproductdesign,Injecttechnologyandwillbecometherichandpotentialindustrializedextensiveproductiontechnologymethodaltogether.2.injectby-itcompressshapingInjectandcompressshapingmoveperpendicularondividingintomouldlinedirectionbymedium-sizedsofwallsat-.Adoptthemethodattheshaping,fillmouldstageandproducepressuredrivemeltingbodyflowaccordingtoprocess,Butthisflowedthedegreeofdepthofonemeltedvariably.Atflowingonedeeplyrelatively,pressuredroprelativelylow,sothatheavyareasmakepiecesofshapingexcessivetopigeonholemeltingbody,Andhaspreventedthematerialinthetwinklingofaneyefromresponding,these2kindsoffactorswillhindertheflowofthemeltingbodyequally.Itinjectsformingprocesstypemakepiecesofthe14%softhicknessfinallybysofdegreeofdepth,Aftertheplastichasbeenpacked60%-75%ofthetyperoughly,stopinjecting,aofwallsofmouldisbulldozedatthesametime,Untilmakethewalloriginalshapingofonefinally.Thefinalsizeofmakingoneisdefinedatthisstage.Ifatmouldwallatprocessfullingofmoretypebeforemoving,thiskindoftechnologyisusuallycalledandcastandpressshaping.Onthewhole,castandpressshapingtoadoptpressurethatbecometomakingonegoonandprotectandpigeonholeinoneapieceofvariablethetypeonesofvolumeses.Castandpressstagetoincreasethestagesofdensity,densityandtheninlyingbetweenandsolidstateplasticchangemeltingbody.Adoptandcastandpresswayshapingpre-pressingdiscs,remainingstressdegreeofminimising,Makepiecesofhaveremainstressproduceandbecomephenomenonofrefracting.Itcastandpressshapingimprovementtypeactivitiestypestypesforkindsofnewtechnologyinsofwalls,injectitsmake.Alreadysomeonecalloutsidegastoassistshapinglawthemethod,actuallytheseareakindofmisunderstanding,Becausethegashasnotinfluencedthemeltingbodyflowintypeofplastic.Duringroutineinjectshaping,protectingandpressiswhileaofvolumeofkeepingtypedoesnotchange,Underthefunctionthatthepressureflows,addandentermoreplastics.Unite,BputerssupplementaryshapingAdoptcomputerassistproject(cae)designandanalyseandhelpandshortendesigncycleandpreventcostfromexpensivemechanicalfaultprocessing.Commercialemulationsdailytoindicatesizeonflowingonecode,meltmaterialflowsinflowingdishesofsystemandtypewithbalance,Thefigureofoffereddingandputbestlyandrunnerdefiningrunneratthesametime.Calculatepressureofinjectingandshutmouldwantatdifferentprocessingtermsandmaterialfixbytonnage.Andwarpingratecombineinitialtoflowintotooveryaccuratetoestimateoutpersonwhoshrink.Whatisimportantisandwantandmakethedesigntoolhelpandanalysepersonnelprocessandgoontheoperationjudgedwhilestudyingorinacertainplanofdesignskillfully.Understandatresultsandcantprocessinorderthatitisbyresearchobject/materialsfromprerequisite.Afterconsideradoptingthiskindofmethodaccuratedata-in,canmakeenormousbenefit.Inaddition,economicmakedesigncyclenottobeshortandneedsproduceshortertimetheanalysis.Theonethatshouldpointoutis,commercialcaeproceduresusuallycantbeuseddirectly.Itfillsandimitateandproducevaluableexperiencebuttheresultmustrethinkitslimitationtoestimateagain.Usemoderncomputersgoonandinjectshapingsimulatedtestandlimitedtopureviscidityfluidsonly(includethemeltingplasticofviscoplasticity).Oneactualflowformmeasurablemeltingbodypersonwhoflowintoesandperformanceannounceetc.structurebyspeed,Ifcancarryontheviscoplasticityanalysisofhighaccuracy.Atpresentadoptanyothertoprocesswayreachthisadvancedcompetences,Andrecentyears,atemulationtheindustrialcirclepersonwhotaketheleadsofequipmentandtheresearchgroupsofuniversityalreadymadegoodprogress.Haveseveralaofcompaniesmakegreateffortsandprobeemulationtechnology,inordertobebeabletobebeingexplainedmouldingthesexinstinctactandprocessthephenomenonofmorerealitycorrectly.Forexample,gettogetherontheinfluencethattheorientationofthepossessivechainisdistributedtosomephysicsperformanceandperformance.Processingphysicsisverycomplicated,butsomeviscoplasticityisembodiedtooaliketostilltotallyunderstood,Perfecttherationalprocessingwayandtakingshapeslowatpresentevenmore.Thesestrongerstrongwayswillbeexceededtheproductioncapacitythatwillbedesignedatpresentgreatly.4.reversalinjectshapingComparativelyspeaking,itisthatarelativelynewinjectshapingchoosesparametersthatthereversalisinjected.Thegreatestdifficultpointofthistechnologyislaininwhenprocessingtheconditionsuddenlychangeses,Tothethingthatitwillbeknownlittleaboutwhatkindofchangebehaviorplasticmeltingbodywilldemonstrate.Abouttherudimentaryknowledgeofmeltingbodyrheology,isnotmerelytheregularshear.Sayexactly,themeltingbodyresponds(theviscidityandelasticbehavior)thecharacteristicneedingexpressing,Notonlycommonstablestateflowspeedorshearspeedandtemperature,butalsoincludingpressureandflowthespeedinthetwinklingofaneye.Thesecharacteristicsincludingalotofcontentandverydifficulttounderstand.However,ifnotinheterotypicmaterialsinjectrespectmakesubstantiveprogress,needandmakeandpublishmanykindsofdifferenttheconcreteoperationalproceduresofplasticses.Needandincreaseaincommonuseonetiredtotryonlawisinordertogettingripeandaccuratecontrolmethodalsoanother.Duringroutineinjectshaping,thetypeimmobilizesinaofwalls,somesituationsareleft,Stillutilizeandfillingonthemouldandprotectandpressandfallsectionandmovethemouldwall.Canadopt2kindsofdifferentmethods:Personwhomovesofperpendicularondividingintomouldlinedirectionwall；Rotateaofwallsoftheslippingtype.Fillstagerotatorytypecoreswithincreasingmould.Throughthiskindofprocessingtechnology,thecrookedperformanceandothermechanicalperformanceofmakingonehasgottengreatimprovement.Polyphenyldrinkthewaterandpolypropylenesyringeadoptcuptheprocessingmethodgetgreattochangeandbreakthroughtheground2apieceofproductsjustbysecond.新型注射成型技術(shù)1.共注射成型（芯層注射成型）采用共注射成型有助于觀察到制件中獨(dú)特的結(jié)構(gòu)。塑料“甲”先注射充入部分型腔，然后塑料：“乙”緊跟著“甲”注射進(jìn)入型腔并保持初始推動(dòng)流動(dòng)壓力場(chǎng)。根據(jù)表