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1、TheintrodutionoftheInjectionMold1.Moldbasicknowledge1.1IntroductionThereisacloserelationshipwithallkindsofmold,whicharereferedtoourdailyproduction,andlifeintheuseofthevarioustoolsandproducts,thelargebaseofthemachinetool,thebodyshell,thefirstembryotoasmallscrews,buttons,as
2、wellasvarioushomeappliancesshell.Mold'sshapedeterminetheshapeoftheseproducts,mold'sprecisionandmachiningqualitydeterminethequalityoftheseproducts,too.Becauseofavarietyofproducts,appearance,specificationsandthedifferentuses,molddevideintoDieCastingintothemould,dieforging,d
3、ie-castingmould,Die,andsoonothernon-plasticmolds,aswellasplasticmold.Inrecentyears,withtherapiddevelopmentoftheplasticsindustry,andGMandengineeringplasticsinareassuchasstrengthandaccuracyofthecontinuousenhancement,thescopeoftheapplicationofplasticproductshavealsoconstantl
4、yexpanded,suchas:householdappliances,instrumentation,constructionequipment,automotive,dailyhardware,andmanyotherfields,theproportionofplasticproductsisrapidlyincreasing.Arationaldesignofplasticpartsoftencanreplacemuchmoretraditionalmetalpieces.Thetrendofindustrialproducts
5、anddailyproductsplasticedisrisingdayafterday.1.2MoldgeneraldefinitionIntheindustrialproduction,withthevariouspressandthespecialinstrumentswhichinstalledinthepress,itproducestherequiredshapepartsorproductsthroughpressureonthemetalornon・metallicmaterials,thisspecialinstrume
6、ntscollectivelycallasthemold.1.3MoldgeneralclassificationMoldcanbedividedintoplasticandnon-plasticmould:(1)Non-plasticmould:DieCasting,forgingDie,Die,die-castingmouldandsoon.A.DieCasting-taps,pigironplatformB.ForgingDie-carbodyC.Die-computerpanelD.DieCastingDie-superalloy
7、,cylinderbody(2)Fortheproductiontechnologyandproduction,theplasticmoldaredividedintodifferentproducts:A.Injectionmoldingdie・TVcasing,keyboardbutton(themostcommonapplication)B.Inflatablemodule-drinkbottlesC.Compressionmoldingdie-bakeliteswitches,scientificCiwandishD.Transf
8、ermoldingdie-ICproductsE.Extrusiondie-ofglue,plasticbagsF.Hotformingdie-transparentshellmoldingp