SAE-J948-1994-耐磨损

SAETechnicalStandardsBoardRulesprovidethat:“ThisreportispublishedbySAEtoadvancethestateoftechnicalandengineeringsciences.Theuseofthisreportisentirelyvoluntary,anditsapplicabilityandsuitabilityforanyparticularuse,includinganypatentinfringementarisingtherefrom,isthesoleresponsibilityoftheuser.”SAEreviewseachtechnicalreportatleasteveryfiveyearsatwhichtimeitmaybereaffirmed,revised,orcancelled.SAEinvitesyourwrittencommentsandsuggestions.QUESTIONSREGARDINGTHISDOCUMENT:[phone]FAX:[phone]TOPLACEADOCUMENTORDER;[phone]FAX:[phone]Copyright1997SocietyofAutomotiveEngineers,Inc.Allrightsreserved.PrintedinU.S.A.SURFACEVEHICLE400CommonwealthDrive,Warrendale,PA15096-0001STANDARDSubmittedforrecognitionasanAmericanNationalStandardJ948REV.AUG94Issued1966-06Revised1994-08SupersedingJ948FEB86TESTMETHODFORDETERMININGRESISTANCETOABRASIONOFAUTOMOTIVEBODYCLOTH,VINYL,ANDLEATHER,ANDTHESNAGGINGOFAUTOMOTIVEBODYCLOTHForeword—ThisDocumenthasnotchangedotherthantoputitintothenewSAETechnicalStandardsBoardFormat.1.Scope—TheTabermethodoftestisapplicablefordeterminingtheresistancetosnaggingandabrasionofautomotivefabricsand/orvinyl-coatedfabrics.2.References—Therearenoreferencedpublicationsspecifiedherein.3.TaberMethod3.1MaterialsandEquipmentRequired3.1.1TABERABRASERMODELNO.5150OREQUIVALENT,COMPLETEWITHVACUUMACCESSORY—AvailablefromTaberIndustries,455BryantStreetNorth,Tonawanda,NY14120,716-694-4000.3.1.2H-18WHEELS(SNAGGING)—AvailablefromTaberIndustries.3.1.3CS-10WHEELS(ABRASION)3.1.4DIAMONDWHEELDRESSER3.1.5S-11ABRASIVEPAPER3.1.6CAMEL'SHAIRBRUSH3.2TestSpecimens—Testspecimensarepreparedbyfoldinga108x108mmsample(orequivalentcircularsample)onceineachdirectionandthenclippingthefoldedpointtoproduceasmallcentralholetofitovertheturntableclampingscrew.Specimensarethenconditionedat21°C±2°Cand50%±5%relativehumidityfor24h.Unlessotherwisespecifiedsamplesshallbetakennonearertheselvageedgethan1/10thewidthofthematerial.COPYRIGHTSocietyofAutomotiveEngineers,Inc.LicensedbyInformationHandlingServicesCOPYRIGHTSocietyofAutomotiveEngineers,Inc.LicensedbyInformationHandlingServicesSAEJ948RevisedAUG94-2-3.3Procedurea.MounttherefacingdischolderontheTaberAbraserandfastentothedischolderapieceofS-11abrasivepaper.b.Adjusttestinstrumentfora1000gload.Loosentheknurledcapnutsandinstallthenewsetofwheelsontheirrespectiveflangedholdersasindicatedbytheprintingonthesideofthewheel.Theonemarkedrightsidefitsontheright-handmountingwithprintedsideout;thesamewiththeleft.Thenutisthenreplacedandmoderatelytightened.Checkthewheelsforalignment.H-18wheelsshallbeusedwhentestingsnaggingresistanceandCS-10wheelsshallbeusedwhentestingabrasionresistance.c.Refaceabrasivewheels25cyclesbyrunningthemagainsttheS-11abrasivepaperdiscmountedontherefacingdischolder.Removeanyroughedgesonthewheelsbymanuallysandinglightlywiththeabrasivepaper.d.Thewheelsmustberefacedbeforeeachtestruntoremoveabradedmaterialsfromthewheelsthatcollectedinthepriortest.e.Ifthewheelsarewornoutofround,crowned,orexcessivelycloggedwithabradedmaterial,theyshouldbedressedusingthediamondrefaceruntiltheconditioniscorrected.Incasesofdoubtabouttheconditionoftheabrasivewheels,newwheelsshallbeused.f.Dusttherefacedabrasivewheelswithasmallcamel'shairbrushandremovetherefacingdischolder.g.Withspecimenturntableremovedfromtheabraser,placetestspecimenontheturntable.Adjusttheclampingringtoatightfitoverthespecimenandholderandpressthehold-downringoverthecircumferenceoftheholdertopullthetestmaterialtaut.h.Removeanywrinklesinthetestspecimenbyadjustingthefabricedgeswhichextendbelowtheclampingring.Then,tightentheadjustingscrewofthering.Placethewasherovertheturntablescrewandtightenthenut.Trimofftheexcesstestspecimenwhichextendsbeyondtheloweredgeoftheclampingring.i.Lowertheabrasivewheelscarefullyfromtheiruprightpositiontothesurfaceofthetestspecimen.Setthecountermechanismatzero.j.Positionthevacuumnozzlealongthediameteroftheturntable3mmabovethesurfaceofthetestspecimenandsetthevacuumdialintherangeof60to70.k.TurnonthevacuumandstarttheTaberAbraser.l.Runthespecimenthenumberofcyclesspecifiedandremoveforevaluation.m.1000cyclesshallberunforabrasionofbodycloth.4.WyzenbeekMethod—TheWyzenbeekmethodcanbeusedtodeterminetheresistancetoabrasionofautomotivevinylandleather.4.1ApparatusandMaterialRequired4.1.1WYZENBEEKWEARTESTEROREQUIVALENT—AvailablefromPolyspec,2301SouthTryonStreet,Charlotte,NC28203,704-376-3776orJ.K.Technologies,2524South8000WestVRoad,Kankakee,IL60901,815-933-8712.Thehardnessoftherubberpadsshouldremainbetween55to75whentestedwithatype00durometerontheflatsurfaces.Rubberpadswhichdonotfitsnuglyintheirrespectiveholdersshouldbereplaced.Duetomisalignmentorwearduringuse,thefollowingprocedureshouldbeperformedwhennecessary;aftercleaningthedrumsurfacewithasolvent,insertapieceof36gritsandpaperandclampintoposition.Lowerthearmsremovingallappliedpressureandabradetherubberpadfor400cyclesoruntiltheyconformtotheshapeofthedrum.Cleantheresurfacedrubberpadwithastiffbrushandre-insertinthesameholderandinthesameposition.Oncearubberpadhasbeenputthroughthisprocedure