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PPT coursewareforPlastic MoldProfessionalEngli•Introduction to plastic moldscontents•Professional Englishvocabulary forplastic molds目录•The designand manufacturingprocess of plastic moldscontents•Common problemsand solutionsof plastic molds目录•The developmenttrend and futureprospects of plastic molds01Introduction toplastic moldsCHAPTERDefinition of plastic moldsDefinitionof plasticComposition ofmoldplastic moldsAplastic mold is atool usedto shapePlastic moldsare usuallycomposed ofplastic products byheating orcooling amold baseand amold core.The moldplasticmaterials toform theminside baseis usedto supportand fixthethe mold,thereby producingthe mold core,while the moldcoreis usedrequiredplastic products.to shapeplastic products.Classification of plastic moldsAccording to the classification of molding methods,plastic moldscan bedivided intoinjection molds,compression molds,extrusion molds,injection molds,etc.According todifferent plastic molding processes,corresponding moldtypes areselected.According to theclassificationofmoldstructures,plastic moldscan bedivided intosingle partingsurface molds,double partingsurface molds,side partingsurface molds,etc.Accordingto the structureand productionrequirementsof plasticproducts,suitable moldstructures areselected.Application ofplastic moldsAutomotiveindustryPlastic moldsare widely used in the automotiveindustry,such asthe moldingof componentssuch asbumpers,instrument panels,and doorpanels.Home applianceindustryMany plasticproducts inhousehold appliancescannot beformed withoutplastic molds,such aswashingmachines,refrigerators,air conditioners,etc.Daily necessitiesindustryMany plasticproducts indaily lifeare formedthrough plastic molds,such astableware,toys,cosmetics packaging,etc.02Professional Englishvocabularyforplastic moldsCHAPTERVocabulary related to plastic mold designInjection molddesignMold structureMoldbaseVocabulary related toplastic molddesign•Core insertVocabularyrelated toplastic molddesignSliderAngle leverVocabularyrelated toplastic molddesignInsertEjector pinVocabularyrelated toplastic molddesignAir vent03Cooling system02Gate01Vocabularyrelated toplasticmold manufacturing•Machining centerVocabularyrelated toplasticmoldmanufacturing01Lathe02Milling machine03Electrical DischargeMachining EDMVocabularyrelated toplasticmoldmanufacturing01Wire cutting:Wire EDM02Five axismachining03Heat treatment04Surface treatmentVocabularyrelated toplasticmoldoperation andmaintenance01Opening the mold02Closing the mold03Injection moldingVocabularyrelatedtoplasticmoldoperation andmaintenanceEjectionInspectionand repairMaintenance and upkeepVocabularyrelatedtoplasticmoldoperation andmaintenanceTroubleshooting:TroubleshootingSafety operationprocedures03The designandmanufacturingprocess of plasticmoldsCHAPTERDesign phaseConceptualDesign DetailedDesign DrawingandDocumentationThis stageinvolves creatinga Inthis stage,the design is furtherThe detaileddesignisthenbasic designfor the plasticmoldrefined anddetailed The molds convertedinto engineeringbasedon the products components,such asthe activity,drawings and documents Theserequirements and specificationscore,and injectorpins,are drawingsanddocumentsshouldThe conceptualdesign shoulddesigned and their interactionsclearly showall thedimensions,consider factorslike thematerial,are definedThe designshould tolerances,and othercriticalgeometry,andtheprocessof the alsoconsider theease ofinformation requiredforplastic materialassembly,disassembly,and manufacturingmaintenanceof the moldManufacturing phase•Mold BaseFabric:The firststep inthis phaseis tomachine the moldbase accordingto the design drawingsThe mold base should bestrong andstable tosupport theother moldcomponents•Insert Fabric:Themoldinserts aremachined separatelyand theninstalled in the moldbase Theseinserts areresponsible for shapingthe plasticpart andmust bemade fromwear resistantmaterials•Ejector MechanismAssembly:The EjectorMechanism isresponsibleforremoving the molded partsfrom themoldIt insistsof injectorpins,injector plates,and othercomponents thatare installedin the moldbase•Mold Testingand Adjustment:Before themold isconsidered readyfor production,it undergoesa seriesof teststo ensure thatit meetsthe designrequirementsandspecifications Anyissues oreffects inthemoldareaddressed duringthis stageTrialand adjustmentstage•First TrialRun:The firsttrial runis conductedwith thenew moldtocheck ifit functionsas intendedThis trialhelps identifyany issuesorproblems withthe moldsdesign or manufacturing•Adjustments:If anyissues areidentified duringthe trialrun,they areaddressed throughadjustments tothemolds designormanufacturingprocess Thisiterative processcontinues untilthemoldperforms satisfactorily•Production Run:Once themoldisdead readyafter successfultrials,it can be usedfor productionruns Itisessential tomonitor themold closureduring productiontoensureconsistent quality and identifyany potentialissuesearly•MaintenanceandRepair:Over time,molds mayrequire maintenanceor repairdue towear andtear or damageRegular inspectionand timelyrepairs canhelp extendthe lifeof themold andmaintain itsperformance04Common problemsandsolutions ofplastic moldsCHAPTEROverflow issueSummaryOverflowissueDetailed descriptionOverflowis oneof thecommon problemsinthe production processofplasticmolds,which isusually causedby excessiveinjection volumeor unreasonablemolddesign.Overflow notonly affectsthe appearanceand quality of theproduct,but mayalso causemold blockageordamage.Overflow issueSolution
1.Adjust
2.Check the
3.Optimizeinjection molddesign moldvolumetemperatureTo solvethe overflowBased onthe sizeand Checkwhether themold Maintainstable moldproblem,the followingshape of theproduct,set designis reasonable,temperature to avoidmeasures canbe takenthe injectionvolume especiallywhether the injection pressurereasonably to avoidpositions of the feedingfluctuations causedbyexcessive injection.points andoverflow slotshigh orlow temperatures.are appropriate.Short shortproblemSummary DetaileddescriptionMaterial shortageissue Materialshortage refers tothedefect intheproduct causedby plasticnot completelyfillingthe moldcavity duringthe injectionprocess.Shortage of materials maybe causedbyinsufficient injectionvolume,insufficient injectionpressure,low mold temperature,or poorplasticfluidity.Short shortproblem•Solution:To addressthe shortageofmaterials,the followingmeasures canbe taken•Adjust theinjection pressureand time:increase theinjection pressureand extendtheinjectiontimeappropriately toensure thatthe plasticfully fillsthemoldcavity.•Check themoldtemperature:Ensure thatthemoldtemperature isappropriate tomaintain goodfluidity oftheplastic.•Check thequalityofplastic:Ensure thattheplasticused isof qualifiedqualityandfree fromimpurities orbubbles.Warpage issueSummaryDetailed descriptionWarpage issue Warpagereferstothe deformationphenomenonofplasticproducts duringthecooling process,usually causedby uneventemperature distribution inthemoldorinsufficient cooling time.Warping canaffect thedimensionalaccuracy andappearance qualityofthe product.Warpageissue•Solution:To addressthe issueof warping,the followingmeasurescanbetaken•Optimize the temperaturedistributionofthemold:By adjustingthemoldtemperature,thetemperatureof eachpart ofthemoldcavity iskept consistenttoavoidlocaloverheating orundercooling.•Control coolingtime:Based onthe thicknessoftheproduct andthe propertiesoftheplastic,set thecoolingtimereasonablytoensure thattheproductis fullycooledand shaped.•Check product design:During theproductdesignphase,the shrinkagerate anddeformation trendof plasticsshouldbefully consideredto optimizethe productstructure.05The developmenttrendandfutureprospectsof plasticmoldsCHAPTERApplicationof high performance materials要点一要点二High performancepolymers CompositematerialsWith thedevelopment ofpolymer materials,more Compositematerials,such asglass fiberreinforcedand morehighperformancepolymers are applied toplastics,carbon fiberreinforced plastics,etc.,areplastic molds,improving theperformance andwidelyused inthe manufacturing ofplastic moldstodurability ofplasticproductsimprove thestrength andstiffness ofplastic productsIntelligentmanufacturing technologyAutomationand roboticsDigitalizationWith thedevelopment ofintelligent manufacturingDigitalization technologies,such asCAD,CAM,technology,more and more automationand CAE,etc.,are widelyusedinthedesign,analysis,robotics technologiesare appliedtothesimulation,and manufacturing ofplasticmolds,manufacturingofplasticmolds,improving improvingproduct qualityand reducingproductproduction efficiencyand reducingproduction developmentcyclecostsGreen andenvironmentally friendlyproductionmethodsRecycling and reuse BiocompatiblematerialsMoreandmoreattention ispaid tothe Biocompatiblematerials,such asrecyclingandreuseofplasticmolds,medical gradeplastics,areappliedtowhich caneffectively reducewaste andthemanufacturingofplasticmolds toenvironmentalpollution replacetraditional materials,reducingthe hardto humanhealth andtheenvironmentTHANKS感谢观看。