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GEPlasticsGOODPARTRESINSUPPLIER膠粒供應商TOOLINGDEVELOPMENT塑膠模具發展ProcessingProblems製程上所遇之問題WeldLines結合線BurnMarks燒痕DimensionalControl尺寸控制Streaking流痕Sticking黏模Brittleness脆性ShortShots短射Flash毛邊Sinks/Voids縮水InconsistentCycle周期不一致-Anonymous佚名CustomsandPracticesoftheMoldmakingIndustryMOLDTYPES模具種類TypesofMolds模具型式(Tools)(Dies)ToolingMoldTypes模具型式ToolingMoldTypes模具型式ToolingMoldTypes模具成型型式ToolingMoldTypes模具成型型式ToolingMoldTypes模具成型型式ToolingMoldTypes模具成型型式InjectionMoldingTooling射出成型模具InjectionMoldingTooling射出成型模具ToolingMoldTypes成型模具種類ToolingMoldTypes模具成型型式ToolingMoldTypes模具成型型式ToolingMoldTypes模具成型型式ToolingMoldTypes模具成型型式ToolingMoldTypes模具成型型式SPRUEBUSHINGS射嘴HeatedSprue加熱式射嘴-HelicalHeaters螺旋電熱片式加熱-GasPipe瓦斯管加熱Non-heatedSprue無熱式射嘴COLDSPRUEBUSHING冷式射嘴SPRUEBUSHING射嘴HotSprueBushing熱射嘴RUNNERS澆道MaterialFlowsOnlyThroughMoltenPortionofRunnerRunnersDesign澆道設計Runners澆道SpruePuller料頭倒扣RESTRICTIVE限制性Asmallincreaseinradiusdramaticallyincreasestheflowthroughtherunner.少量增加澆道半徑,Q值流動速率會大幅增加FlowDirection膠粒流動方向UnbalancedSystem非平衡式澆道設計ArtificiallyBalanced人工設計平衡澆道BalancedSystem平衡的澆道系統RUNNERLESSMOLDING無澆道系統HotRunnerBenefits熱澆道的優點FasterCycles成型周期減少15~20%-15-20%FasterEliminatesMaterialWaste排除材料浪費-NoSpruesorRunners無注口或澆道ImprovesPartQuality改進成形品品質-LessStress較低殘留內應力-BetterAppearance較佳之外觀RUNNERLESSMOLDINGSYSTEMS:無澆道系統CompressionSeal高壓密封CavityPlate=500GATING進澆口DirectSprueGate直接進膠EdgeGate側邊進膠FanGate扇形進膠TunnelGate潛入進膠Single單點進膠MultipleTabGates多點進膠DiskGateRingGate環形進膠DirectSprueGate直接進膠式PART成形品COLDSLUGWELL較佳之冷料井LandLength進膠口長度SingleTabGate單點進膠KnitLine結合線DiskorDiaphragmGateToolingGatingRunner0.020LandLengthMoldedPartTunnelRKnitLineInjectionMoldingToolingInjectionMoldingToolingInjectionMoldingToolingVENTINGPartingLineClearanceAroundKnockoutTEMPERATURECONTROLTheMostEfficientCoolingSystemsAreThoseWhichOperateSuchThatTheInletandOutletCoolantTemperaturesAreWithin100OfEachOther120BalancedCoolingUniformCoolingMaximumTemperatureDifferentialof10oFInjectionMoldingToolingInjectionMoldingToolingEJECTORMECHANISMSPinDiameterisasLar