TIRE-KNOWLEDGE

1ØFunctionsofTiresØGeneralCharacteristicsofTiresØDesignandTestsofTiresØManufacturingProcessofTiresØNextGenerationTiresØOpenDiscussionTireintroduction轮胎设计实验制造介绍2FunctionsofTiresAgendaToday,1HourØFunctionsofTiresØGeneralCharacteristicsofTiresØDesignandTestsofTiresØManufacturingProcessofTiresØNextGenerationTiresØOpenDiscussion3FunctionsofTiresWhat’stheFUNCTIONSoftiresLoad–BeartheweightofwholecarGrip–MaintainaforcebetweentireandgroundtodrivethevehicleSteering–Keeptherightmovingdirectionofthevehicle.Shock–Absordsomeshockandvibrationfromtheroadsurface.Noise–Reducethenoisebringfrombetweentiresandroadsurface4FunctionsofTiresForceAnalysisofTiresLoadupwardbackwardFrictionforwardCentrifugalforceTorsion5FunctionsofTiresApplicationEnvironmentofTires•Shockontheroad•Windingoftheroad•Waveoftheroad•Heatfromambienttemperature•Wearofthetiresurfaceontheroad•Oil,greaseandotherliquids•Dust,mud,snowandwater•VariousweahtersWhenavehiclerunsontheroad,thetirewillencounterthefollowingapplicationenvironments:6GeneralCharacteristicsofTiresAgendaToday,1HourØFunctionsofTiresØGeneralCharacteristicsofTiresØDesignandTestsofTiresØManufacturingProcessofTiresØNextGenerationTiresØOpenDiscussion7GeneralCharacteristicsofTiresTypesofTiresBiasTireRaidalTireRadialtirehasaplythatisatornear90degreestothedirectionoftravelandtheplygoesfrombeadtobead.Biasplytirehastheply(s)cutatanangleandthepliesarelaidovereachotherinacrisscrossmethod.HigherspeedMorehardtobePenetratedLongerservicelifetimeMoresafety8GeneralCharacteristicsofTiresTypesofTiresTubetypeTireTubelessTire1.Tightcontactbetweenwheelandtire2.Moresafety3.Innerlinercombinedontire4.Moreapprioratetohighspeed.5.Lessheatandweight1.Untightcontactbetweenwheelandtire2.Lesssafety3.Independentinnertube4.Lessappropriatetohighspeed5.Moreheatandweight9GeneralCharacteristicsofTiresConfigurationofRadialTire10GeneralCharacteristicsofTiresTreadPattern&TirePlies•Rayon•Polyester•Steel•Polyamid(Nylon)MaterialsofPlyTREADPLIES:2POLYESTER+2STEEL+1POLYAMIDESIDEWALLPLIES:2POLYESTER11GeneralCharacteristicsofTiresKeyDimensionsofTiresSectionHeightSectionWidthTireTireWheelDiaTireHeightWheelWidthTireDiaWidthTreadAspectRatio=SectionHeightSectionWidthX10060506570DifferentSeriesofTires12GeneralCharacteristicsofTiresPerformanceParametersofTireP215/65R16100WPP2TLP–PassengerVehicle215–NominalWidthofTire65–AspectRatioR–RadialTire100–MaxLoadIndex(onsingletire)W–SpeedSymbolPP2–TreadPatternTL–TubelessTire13GeneralCharacteristicsofTiresPerformanceParametersofTireUTQG-UniformTireQualityGradingTreadwear160–Theservicelifetimeis1.6timesofstandardtireTractionA–ThegradeoftractionisA(ThereexistclassA,B,C)TemperatureB–Thegradeofheat-resistanceperformanceoftire(ThereexistclassA,B,C)TreadwearTractionTemperature14GeneralCharacteristicsofTiresMarks&IdentificationsonTireTWI(TreadWearIndicator)15GeneralCharacteristicsofTiresMaterialsUsedforTireRubber48%RubberAddition31%Other11%Steel10%SyntheticRubberNaturalRubberCarbonBlackSulphurOilOtherChemicalsTextilePolyesterNylon16DesignandTestsofTiresAgendaToday,1HourØFunctionofTiresØGeneralCharacteristicsofTiresØDesignandTestsofTiresØManufacturingProcessofTiresØNextGenerationTiresØOpenDiscussion17DesignandTestsofTiresBasicInfo.ofVehicle•MarketRange/Customers•GeneralPerformance•PowerPerformance•GeometricCharacteristicsTechSpec.ofTire•Tiretypeselection•Safetyperf.requirements•Applicationperf.requirements•Manuf.qualityrequirementsFixOnParameters•Geometricdimensions•PhysicalparametersTireDesign•Materialselection•Treadpatterndesign•BeltplydesignSampleTirePreparingSmapleTireTest•Suppliertest•Subjectivetest•ObjectivetestSampleTireSubmit•OEMtest•Evaluationtheperformance•GivefeedbackfortiredesignDesignApprovedbyOEM18DesignandTestsofTires19DesignandTestsofTiresTestsforTiresDVP&Rincludesthefollowingtests:•Demenisionaldatecheck•Vehiclenoise/ridetest•Vehiclehandlingtest•Fueleconomytest•Tractiontest•Forceandmoment•Treadweartest•Airretentiontest•Electrostaticresistancetest20ManufacturingProcessofTiresAgendaToday,1HourØFunctionsofTiresØGeneralCharacteristicsofTiresØDesignandTestsofTiresØManufacturingProcessofTiresØNextGenerationTiresØOpenDiscussion21ManufacturingProcessofTires22ManufacturingProcessofTires23ManufacturingProcessofTiresGreenTire24ManufacturingProcessofTiresInspectionProcess•Visualinspection•Balanceinspection•Force&Momentinsepction•X-rayinspectionFinishedTire25ManufacturingProcessofTiresStaticImbalanceOccurswhenthereisaheavyorlightspotinthetirethatpreventsthetirefromrollingevenlyandcausingthetireandwheeltoundergoanup-and-downmotion.DynamicImbalanceOccurswhenthereisunequalweightononeorbothsidesofthetire/wheelassembly'slateralcenterline,thuscreatingaside-to-sidewobbleorwheelshimmy.26NextGenerationTiresAgendaToday,1HourØFunctionsofTiresØGeneralCharacteristicsofTiresØDesignandTestsofTiresØManufacturingProcessofTiresØNextGenerationTiresØOpenDiscussion27NextGenerationTiresWhatdoessupportthevehiclebetweentireandwheel?Airor…28NextGenerationTiresDesignedbyMichelinAppearedatthePhiladelphiacarshowThesetiresareairlessSpikestripsw