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1、TESTMETHODPRUWERFAHRENIGME60368DeteminationofAbrasionResistanceofArtificialLeatherBestimmungderAbriebfestigkeitvonKunstlederIRevisiondÄnderungenDate/DatumSym/PosDescription/BeschreibungAppdiGenApprovecVGenehm¡atissue1DateofIssue04/95AusgabeAusgabedaturnAusgefertigt--```,,
2、,``,,`````,,`,,,,,,`,```-`-`,,`,,`,`,,`---CopyrightGeneralMotorsEuropeProvidedbyIHSunderlicensewithGMELicensee=Lear-Southfield/5910410001,User=scheer,jochenNoreproductionornetworkingpermittedwithoutlicensefromIHSNotforResale,10/17/200705:56:44MDTTESTMETHODGME60368PR~FVERF
3、AHREN1ScopeandApplicationThetestshallbeusedtodeterminethedurabilityofartificialleathersurfaces.Tothispurpose,thesurfacesshallbeexposedtostressintheformofabrasion.2DefinitionsAbrasive.strengthistheresistanceofasurfacetodamagescausedbytheabrasivemovementofawedgewrappedinsan
4、dpaper.3TestEquipmentandAuxiliaryMedia3.1Astestingapparatus,amodifiedhardnesstesterforcoatsofpainttoClemen-Key1shallbeused.AnexampleofsuchadeviceisshowninFigureI.3.2TestWedge--```,,,``,,`````,,`,,,,,,`,```-`-`,,`,,`,`,,`---AtestwedgewiththesamegeometryasillustratedinFigur
5、e2shall.beemployed.ThiswedgeshallbecoveredwithsandpaperfromtheFa.CarborunduminDusseldorf(designation:siliconcarbideabrasivepaper,coarseness220).3.3SteelCylinderInordertosimulatecreases,thetestpiecesshallbefixedoverasteelcylinder130mminlengthand8mmindiameter.(Figure3)4Test
6、PiecesandNumberThesizeoftestpieces’shallbe140x40mm,thusensuringthatthetestpiecesarefixedfirmlythroughoutthetest.Itmustbepossibletoperformabrasivemovements60mminlengthinonedirectionalongthetestsurface,Forinitialsampleapprovalandarbitrationpurposes,atleastthreetestpiecessha
7、llberequired.Forroutinequalitychecks,atleastonetestpieceshallbetested.5Procedure5.1Thetestpieceholdershallconsistofabaseplate(testpiececamage)andtestpiececlampingplatewhichshallcenterthetestpieceandfixitfirmlyinposition.Thecenterofthefixingplateshallbearagroovetoholdthest
8、eelcylinder.Thetestpieceshallbelaidoverthesteelcylinderinasreceivedconditionandclampedbetweenthe
