通用塑料气体辅助成型GAS.Word 文档

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1、eGasAssistInjectionMoldingGasA.I.MSeminar气体辅助成型技术2005-02-24GEAdvancedMaterialConfidential1PDFcreatedwithFinePrintpdfFactorytrialversionhttp://www.fineprint.comeGasAssistInjectionMoldingKeyFeatures主要特征lAnExtensionofTraditionalInjectionMolding传统注塑技术的拓展lProducesMoldedPartswithHollowSection

2、s制品中空lALowCavityPressureProcess低型腔压力lA"ShortShot"Process缺料注塑2005-02-24GEAdvancedMaterialConfidential2PDFcreatedwithFinePrintpdfFactorytrialversionhttp://www.fineprint.comeGasAssistInjectionMoldingMoldingOverview成型概述lHighPressureGas(Nitrogen)isInjectedintotheUncuredResin高压气体(N2)充入未凝树脂lTh

3、eGas"Bubble"FollowsthePathofLeastResistance(HighT&LowP)气体流向阻力最小处lHollowSectionsResultfromDisplacedResinandShrinkageinThickSections制品内部壁厚处中空2005-02-24GEAdvancedMaterialConfidential3PDFcreatedwithFinePrintpdfFactorytrialversionhttp://www.fineprint.comeGasAssistInjectionMoldingStagesofGasA

4、ssistMolding气辅成型的各阶段部分充模首次充气二次充气2005-02-24GEAdvancedMaterialConfidential4PDFcreatedwithFinePrintpdfFactorytrialversionhttp://www.fineprint.comeGasAssistInjectionMoldingProcessBenefits加工优势Itisimportanttonotethatsome(notall)ofthesebenefitsmayberealizedforanygivenpart.lReducedSinkMarksorRe

5、adThroughunderChannelsorRibs减轻缩痕lSmoothSurfaceFinishwhenComparedtoStructuralFoam制品表面光滑lReducedCycleTimewhenComparedwithStructuralFoamorThickParts降低循环时间lLowerPartWeightinSomeParts减小制品质量2005-02-24GEAdvancedMaterialConfidential5PDFcreatedwithFinePrintpdfFactorytrialversionhttp://www.finepr

6、int.comeGasAssistInjectionMoldingProcessBenefits(continued)lEnhancedFlowCapability增加流动性ÿReducedclamptonnagerequirements降低锁模吨位ÿReducedpressurerequirements降低注射压力ÿReplacesexternalhotorcoldrunnerswithbuilt-in(gas)channels(lowertoolingcost).降低模具成本lReducedMolded-inStressandStressGradientthrou

7、ghoutthepart降低模内应力ÿUniformpacking/shrinkage均匀收缩ÿReducedpartwarpage减轻制品挠曲lGreaterDesignFreedom更大的设计自由度ÿAddsstructurewithlittlepenalty结构多样化ÿAllowsthemoldingofthickparts可成型较厚制品2005-02-24GEAdvancedMaterialConfidential6PDFcreatedwithFinePrintpdfFactorytrialversionhttp://www.fineprin