TL52440-EN-2009-04-01

PA6,Glass-FiberReinforced,FinishedPartsMaterialRequirements2types:withoutindex,APreviousissuesTL52440:1996-01,2002-10ChangesThefollowingchangeshavebeenmadeascomparedtoTL52440:2002-10:–Viscositymeasurementdeleted–Stresscracksensitivityadded–AgingresistancetestmodifiedScopeThisTechnicalSupplySpecification(TL–Germanabbreviation)definesthematerialrequirementsforfinishedpartsmadeofPA6-GF30orPA6-GF35,e.g.,forintakemanifolds.DescriptionDescriptionexampleforthetypewith35%glassfiberreinforcement:PA6-GF35acc.toTL52440-A12GroupStandardTL52440Issue2009-04Class.No.:55121DDescriptors:polyamide6-GF,PA6,glassfiberreinforced,injectionmolding,intakemanifold,PA6-GF30,PA6-GF35Checkstandardforcurrentissuepriortousage.Thiselectronicallygeneratedstandardisauthenticandvalidwithoutsignature.TheEnglishtranslationisbelievedtobeaccurate.IncaseofdiscrepanciestheGermanversionshallgovern.Numericalnotationacc.toISOpractice.Page1of7TechnicalresponsibilityStandardsDepartmentGQL-LP/4LarsFölsterTel.:[phone]GQL-LPDr.RogerHillertEKTC/4UteHager-SüßEKTCTel.:[phone]ManfredTerlindenConfidential.Allrightsreserved.NopartofthisdocumentmaybetransmittedorreproducedwithoutpriorpermissionofaStandardsDepartmentoftheVolkswagenGroup.PartiestoacontractcanonlyobtainthisstandardviatheB2Bsupplierplatform©VolkswagenAktiengesellschaftVWNORM-2008-12f-patch1RequirementsGeneralrequirementsApprovaloffirstsupplyandchangesaccordingtoVolkswagenstandardVW01155.EmissionbehavioraccordingtoVW50180(ifrequiredinthedrawing).Resistancetoopen-airweatheringaccordingtoVW50185(ifrequiredinthedrawing).AvoidanceofhazardoussubstancesaccordingtoVW91101.Atotalof5finishedpartsisrequiredforcompletetesting.PhysicalpropertiesThesurfaceandinteriorofthefinishedpartsmustbefreeofflawsandprocessingdefectssuchasflowlines,voids,cracks,andthelike.Sinkmarksatthebaseofribs,reinforcements,andpipeunionsareonlypermissibleiftheydonotadverselyaffecttheassemblyandfunctionoftheparts.Thefinishedpartsmustallowforflawlessinstallation.Thedistributionoftheglassfibersthroughoutthematerialmustbesufficientlyuniformsothatthreespecimenstakenfromdifferentpointsonafinishedpartdonotdifferinglassfibercontentbymorethan1,0%.ManufactureInjectionmoldingTypes–TL52440Polyamide6,30%glassfiberreinforcement–TL52440-APolyamide6,35%glassfiberreinforcementMarkingaccordingtoVDA2601)–TL52440PA6-GF30–TL52440-APA6-GF35ConditioningPriortotesting,thespecimensrequiredfortheindividualtestsmustbeconditionedforatleast72hinISO554–23/50standardclimate.EvaluationofmeasurementresultsTherequirednumericalvaluesapplytoeachindividualmeasurementandeachpointonthefinishedpart.MaterialrequirementsMaterialSeeSection6.1.Polyamide6,heat-stabilized,glass-fiberreinforced.33.13.23.33.43.53.63.744.11)VDA=GermanAssociationoftheAutomotiveIndustryPage2TL52440:2009-04DGlassfibercontentacc.toDINENISO1172–TL52440(30±2)%–TL52440-A(35±2)%ColorAccordingtodrawing.PropertyrequirementsSeeTable1.Table1No.PropertyUnitRequirementTL52440TL52440-A1Moisturecontentacc.toSection6.2%1to32Densityacc.toDINENISO1183-1,buoyancymethodg/cm31,37±0,021,41±0,023Meltingtemperatureacc.toDINENISO3146,optionallyDSCacc.toSection6.3°C≥2154Ballindentationhardnessacc.toDINENISO2039-1andSection6.4N/mm2≥170≥1755Flexuralstrengthacc.toDINENISO178andSection6.5MPa≥120≥1256Impactresistanceacc.toDINENISO179-1andSection6.6kJ/m2≥36≥507Notchedimpactstrengthacc.toDINENISO179-1andSection6.7kJ/m2≥7≥128Processingqualityacc.toSection6.8End-to-endcracksareimpermissible;thecomponentmustremainfullyfunctionalafteraging.9Agingresistanceacc.toSection6.99.1Flexuralstrengthacc.toDINENISO178andSection6.5MPa≥80%ofinitialvalue9.2Notchedimpactstrengthacc.toDINENISO179-1kJ/m²≥80%ofinitialvalue4.24.35Page3TL52440:2009-04DNo.PropertyUnitRequirementTL52440TL52440-A9.2andSection6.7kJ/m²≥80%ofinitialvalue10Elevated-temperaturebehavioracc.toDIN53497andSection6.10Nochangetotheshape,thesurface,or(ifany)theconditionoftheweldedjointhavinganegativeeffectonfunctionmustoccur.10.1Dimensionalchangeoflengthandwidth%≤0,511Low-temperaturebehavioracc.toSection6.11Thefinishedpartsmustremainfullyfunctionalandcompletelyundamagedatlowtempera‐tures.Theymustnotexhibitanycracksorotherdamagesatlowtemperaturesorafterraisingthetemperatureto23°C.Theremustbenonegativeimpactontheweldedjoint(ifany).12Lightfastnessacc.toTestSpecificationPV1303andSection6.12(requirementappliesonlytovisiblepartsinthepassengercompartmentorifspecifiedinthedrawing).Num‐beroflightexposureperiodsaccord‐ingtodrawing.Theexposedsurfacemustnotexhibitchangesascomparedtotheas-receivedcon‐dition,e.g.,changeincolor,chalking,and/orcracking.Gray-scalelevel5acc.toDINEN20105-A02.┌13┐BurningbehaviorAcc.toTL1010(ifrequiredindrawingand/orrelease).NotesontestingMaterialTheidentitytestisperformedwithinfraredspectroscopy.MoisturecontentAminimumof3specimenswithasizeof(20x20)mmmustbesampledfromdifferentpointsonthefinishedpart;theymustbeweighedwithanaccuracyof0,01ganddriedat100°Cinavacuumuntiltheirweightremainsconstant.Coolingofthespecimensto(23±2)°C,whichisnecessaryf