PV3307-EN-2004-08-01

Klass.-Nr.55161August2004ElastomerComponentsPlasticandElasticDeformabilityPV3307KonzernnormDescriptors:elastomer,deformability,plasticdeformation,elasticdeformation,elastic,plastic,deformationbehavior,compressiveloadPage
ofFachverantwortung/ResponsibilityNormung/Standards(EZTD,1733)K-QS-31SchulzTel:-24365PeterkaFrauKrenzTel:[phone]SobanskiConfidential.Allrightsreserved.NopartofthisdocumentmaybetransmittedorreproducedwithoutthepriorwrittenpermissionofaStandardsDepartmentoftheVolkswagenGroup.Partiestoacontractcanonlyobtainthisstandardviatheresponsibleprocurementdepartment.ÓÓÓÓVOLKSWAGENAGNormvorAnwendungaufAktualitätprüfen/Checkstandardforcurrentissuepriortousage.FormFE41-01.03ChangesThefollowingchangeshavebeenmadeascomparedtoTestSpecificationPV3307,1999-02:
StandardcompletelyrevisedPreviousissues1968-06;1971-11;1992-08;1995-06;1998-05;1999-021ScopeThistestspecificationdescribesatestprocedurefordeterminingplasticandelasticdeformationbehaviorunderdefinedtestconditions.Itshallbeusedforelastomercomponentsthataresubjecttocompressiveloadsinpracticaluse.2DesignationTestduration,testtemperatureandlimitvaluesshallbeadaptedtotherespectiverequirements.Example:PermanentdeformationaccordingtoPV3307,46hat+70°C,£60%3Testmethod3.1Testequipment3.1.1ThicknessgageSeeFigure1.Accuracyofreading0.01mmWeight(preload)0.45Nto0.75NMandreldiameter2.5mmOthermandrels,inparticularthosewithashapeand/ordiameterdeviatingfromthemandreldescribedabove,aresubjecttoagreement.Thisshallbenotedaccordinglyinthetestrecord.TheEnglishtranslationisbelievedtobeaccurate.IncaseofdiscrepanciestheGermanversionshallgovern.Page2PV3307:2004-08Figure1–ThicknessgageFigure2–DetailofthicknessgageLegend1=Mandrel2=Specimenpart3.1.2SpecimensDiameterapprox.15mm,preferredthickness2.0mm.Otherspecimenthicknessesmaybeagreedupon.3.2TestprocedureSpecimenspreparedfromfinishedpartsortestpanelsshallbecompressedinthemiddleby50%oftheirinitialthicknessinaccordancewiththetestdiagram(seeFigure3).Thetestmediumshallbematchedtothepracticalapplicationoftheproductinquestion.Agingmaybeperformedatroomtemperature,elevatedtemperature,undertheinfluenceofliquids,etc.Thestandardtesttimesare22h,46hand94h.Specimensagedatelevatedtemperatureshallbeacclimatizedfor3hatroomtemperaturebeforebeingunloaded.Themeasurementsshallbeperformed5safterunloading.Figure3–Testdiagram2.5Page3PV3307:2004-083.3TestapparatusSeeFigure4andFigureA.1.Legend1=Loadscrew2=AdjustingscrewM63=CounternutM64=Pressureplate5=Pressurespring;A–Ø=8;l–Ø=6;length=16.5;fp=6.5;Pf=37N;totalnumberofwindings=5.56=BaseplateMaterial:Stainlesssteel(forcompressionspring:springsteel)Scale:1:1;tolerance:±0.25Figure4–Testapparatusfor“permanentdeformation”3.4EvaluationThepermanentdeformationiscalculatedaccordingtothefollowingformula:ndeformatiopermanent%100xhhhh1020=--h0=initialthicknessh2=thicknessafterunloadingh1=thicknesscompressedby50%Thetestresultsareevaluatedbydeterminingthearithmeticmeanvalueofatleastthreevalues.Page4PV3307:2004-08AppendixA(normative)FigureA.1–DetaileddrawingsknurledPart1Part2Part3Plane-parallelto6inallrotationalpositionsPart4Part5Part6Rz6.3RZ6.3RZ6.3RZ6.38.0.01R0.2