GAS气体辅助注塑

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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lProducesMol

2、dedPartswithHollowSections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(Nitro

3、gen)isInjectedintotheUncuredResin高压气体(N2)充入未凝树脂lTheGas“Bubble”FollowsthePathofLeastResistance(HighT&LowP)气体流向阻力最小处lHollowSectionsResultfromDisplacedResinandShrinkageinThickSections制品内部壁厚处中空2005-02-24GEAdvancedMaterialConfidential3PDFcreatedwithFinePrintpdfFactor

4、ytrialversionhttp://www.fineprint.comeGasAssistInjectionMoldingStagesofGasAssistMolding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

5、Itisimportanttonotethatsome(notall)ofthesebenefitsmayberealizedforanygivenpart.lReducedSinkMarksorReadThroughunderChannelsorRibs减轻缩痕lSmoothSurfaceFinishwhenComparedtoStructuralFoam制品表面光滑lReducedCycleTimewhenComparedwithStructuralFoamorThickParts降低循环时间lLowerPartW

6、eightinSomeParts减小制品质量2005-02-24GEAdvancedMaterialConfidential5PDFcreatedwithFinePrintpdfFactorytrialversionhttp://www.fineprint.comeGasAssistInjectionMoldingProcessBenefits(continued)lEnhancedFlowCapability增加流动性ØReducedclamptonnagerequirements降低锁模吨位ØReducedpres

7、surerequirements降低注射压力ØReplacesexternalhotorcoldrunnerswithbuilt-in(gas)channels(lowertoolingcost).降低模具成本lReducedMolded-inStressandStressGradientthroughoutthepart降低模内应力ØUniformpacking/shrinkage均匀收缩ØReducedpartwarpage减轻制品挠曲lGreaterDesignFreedom更大的设计自由度ØAddsstruct

8、urewithlittlepenalty结构多样化ØAllowsthemoldingofthickparts可成型较厚制品2005-02-24GEAdvancedMaterialConfidential6PDFcreatedwithFinePrintpdfFactorytrialversionhttp://www.fineprin