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1、TheintrodutionoftheInjectionMold1.Moldbasicknowledge1.1IntroductionThereisacloserelationshipwithallkindsofmold,whicharereferedtoourdailyproduction,andlifeintheuseofthevarioustoolsandproducts,thelargebaseofthemachinetool,thebodyshell,thefirstembryotoasmallscrews,buttons,a
2、swellasvarioushomeappliancesshell.Mold’sshapedeterminetheshapeoftheseproducts,mold’sprecisionandmachiningqualitydeterminethequalityoftheseproducts,too.Becauseofavarietyofproducts,appearance,specificationsandthedifferentuses,molddevideintoDieCastingintothemould,dieforging
3、,die-castingmould,Die,andsoonothernon-plasticmolds,aswellasplasticmold.Inrecentyears,withtherapiddevelopmentoftheplasticsindustry,andGMandengineeringplasticsinareassuchasstrengthandaccuracyofthecontinuousenhancement,thescopeoftheapplicationofplasticproductshavealsoconsta
4、ntlyexpanded,suchas:householdappliances,instrumentation,constructionequipment,automotive,dailyhardware,andmanyotherfields,theproportionofplasticproductsisrapidlyincreasing.Arationaldesignofplasticpartsoftencanreplacemuchmoretraditionalmetalpieces.Thetrendofindustrialprod
5、uctsanddailyproductsplasticedisrisingdayafterday.1.2MoldgeneraldefinitionIntheindustrialproduction，withthevariouspressandthespecialinstrumentswhichinstalledinthepress,itproducestherequiredshapepartsorproductsthroughpressureonthemetalornon-metallicmaterials,thisspecialins
6、trumentscollectivelycallasthemold.1.3MoldgeneralclassificationMoldcanbedividedintoplasticandnon-plasticmould:(1)Non-plasticmould:DieCasting,forgingDie,Die,die-castingmouldandsoon.A.DieCasting-taps,pigironplatformB.ForgingDie-carbodyC.Die-computerpanelD.DieCastingDie-supe
7、ralloy,cylinderbody(2)Fortheproductiontechnologyandproduction,theplasticmoldaredividedintodifferentproducts:A.Injectionmoldingdie-TVcasing,keyboardbutton(themostcommonapplication)B.Inflatablemodule-drinkbottlesC.Compressionmoldingdie-bakeliteswitches,scientificCiwandishD
8、.Transfermoldingdie-ICproductsE.Extrusiondie-ofglue,plasticbagsF.Hotformingdie-transparentshellmoldingp
