塑料件设计指导《Plastic Design Guide》.ppt

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1、DesignGuidelinesNov.24.2004TechnicalCenter/EngineeringPolymersDuPont(Korea)Inc.Version1.01EngineeringPolymers/DuPont(Korea)Inc.DesignConceptDesignFlowCAECADPlasticPartsDesignGuide2EngineeringPolymers/DuPont(Korea)Inc.TypicalWallThicknessForEngineeringP

2、olymersGeneralapplications12345670millimetricscaleSpecialapplications3EngineeringPolymers/DuPont(Korea)Inc.GateLocation&StrengthGateMPaZYTEL70G3323C,DAMTensileStrength4EngineeringPolymers/DuPont(Korea)Inc.GateLocation&ShrinkageGateMaterialFlowAffectsOr

3、ientationFlowDirectionTransverseDirection5EngineeringPolymers/DuPont(Korea)Inc.GateLocation&ShrinkageUnreinforcedHigherShrinkageinDirectionofMolecularOrientation/FlowGateFlowDirectionTransverseDirection6EngineeringPolymers/DuPont(Korea)Inc.GateLocation

4、&ShrinkageGateFlowDirectionTransverseDirectionGlassReinforcedGlassFiberResistsShrinkageinDirectionofAlignment/Flow7EngineeringPolymers/DuPont(Korea)Inc.GateLocation&ShrinkageGateFlowDirectionTransverseDirectionMineralReinforcedMineralResistsShrinkageMo

5、reUniformlyinAllDirections8EngineeringPolymers/DuPont(Korea)Inc.Shrinkage&WarpageShrinkageIncreaseswithWallThicknessHigherShrinkageLowerShrinkage9EngineeringPolymers/DuPont(Korea)Inc.Shrinkage&WarpageUnevenShrinkage10EngineeringPolymers/DuPont(Korea)In

6、c.Shrinkage&WarpageBadFlatness11EngineeringPolymers/DuPont(Korea)Inc.Shrinkage&WarpageGoodFlatness12EngineeringPolymers/DuPont(Korea)Inc.Shrinkage&WarpageCaseona‘plate+rib’profilebGatehwaFlowangleIsochronesLGate13EngineeringPolymers/DuPont(Korea)Inc.Sh

7、rinkage&WarpageSSinflowShrinkage(S)SSThinThickba1234Wallthickness[mm]Shrinkage[%]TransversetoflowInflow1.5GlassreinforcedmaterialsDeformationtrend14EngineeringPolymers/DuPont(Korea)Inc.Shrinkage&WarpageSSinflowShrinkage(S)SSThinThick1234Wallthickness[m

8、m]Shrinkage[%]TransverseInFlow1.5baDeformationtrendUnreinforcedmaterials15EngineeringPolymers/DuPont(Korea)Inc.GateLocation&ShrinkageBadGateLocationGate16EngineeringPolymers/DuPont(Korea)Inc.GateLocation&ShrinkageFlowSteps17EngineeringP