【英文标准名称】:StandardTestMethodforAdhesionofTireCordsandOtherReinforcingCordstoRubberCompoundsbyH-TestProcedure
【原文标准名称】:H-试验法测定轮胎帘布和其他增强帘布对橡胶化合物的粘附性的标准试验方法
【标准号】:ASTMD4776/D4776M-2010
【标准状态】:现行
【国别】:美国
【发布日期】:2010
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:D13.19
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:adhesion;reinforcements(textiles);rubber;tirecord;Acceptancecriteria/testing--textilefabrics/fibers;Heatingtests--rubber;Heatingtests--textilematerials/applications;Hollandcloth;H-testadhesion;Rubberadhesion;Rubbercompounding
【摘要】:TestMethodD4776forthedeterminationoftheH-testadhesionofreinforcingcordstorubbercompoundsmaybeusedfortheacceptancetestingofcommercialshipmentsofreinforcingcordsbutcautionisadvisedsinceinformationaboutbetween-laboratoryprecisionisincomplete.Comparativetestsasdirectedin5.1.1maybeadvisable.IncasesofdisputearisingfromthedifferencesinreportedtestresultswhenusingTestMethodD4776foracceptancetestingofcommercialshipments,thepurchaserandthesuppliershouldconductcomparativeteststodetermineifthereisstatisticalbiasbetweentheirlaboratories.Competentstatisticalassistanceisrecommendedfortheinvestigationofbias.Asaminimum,thetwopartiesshouldtakeagroupoftestspecimenswhichareashomogeneousaspossibleandwhicharefromalotofmaterialofthetypeinquestion.Thetestspecimensshouldthenberandomlyassignedinequalnumberstoeachlaboratoryfortesting.TheaverageresultsfromthetwolaboratoriesshouldbecomparedusingStudent''st-testforunpaireddataandanacceptableprobabilitylevelchosenbythetwopartiesbeforetestingbegins.Ifabiasisfound,eitheritscausemustbefoundandcorrectedorthepurchaserandthesuppliermustagreetointerpretfuturetestresultsinlightoftheknownbias.Thistestmethodisusedtomeasuretheforcerequiredtoextractthecordfromarubbercompoundtestblock.Thistestmethodisdesignedtotesttheadhesionoftextilesthatarebondedtorubbercompounds.Variablesthatmaycontributetodifferencesinresultsofthistestmethodincludeadhesivetype,adhesiveapplicationprocedure,adhesivecure,fibertype,constructionofcords,rubbertype,rubbercure,andrubberthickness.Thedeleteriouseffectofozoneincombinationwithatmosphericmoistureontheabilityofadhesivestobondwithrubberrequiresassiduousprotectionofcordspriortoembedment.Theexpectedrangeofvalueswhichcharacterizeacceptableadhesioncanbedeterminedinanycord-rubbercombinationwithexperience.Forthisreason,thepurchasernormallyestablishesaminimumlevelofadhesiontobeobtainedbythesupplierineitherthesupplier''slaboratoryorthepurchaser''slaboratoryusingeitherthesupplier''sstandardrubbercompoundorthepurchaser''srubbercompound.AnotherprocedurefortestingadhesionofcordstorubbercompoundsisTestMethodsD4393.Thisprocedurehasbeenusedextensivelyinthetradeforacceptancetesting.Resultsobtainedbythismethodcannotbeusedinterchangeablysincethereisnooverallcorrelationbetweenthem.1.1Thistestmethodcoversthemeasurementofadhesionofreinforcingcordsthatarebondedtorubbercompounds.Thistestmethodisapplicabletotextilecordstructuresfrombothnaturalandmanmadefibers,otherthansteel.Foradhesiontestingofsteeltirecords,refertoTestMethodD2229.1.2Thistestmethodisprimarilyusedtoevaluatetirecords,usingasuitabletirecordadhesiveandasuitablerubbercompound.Thistestmethodisalsousedtoevaluate(1)tirecordadhesives,and(2)theprocessofadhesivereactiononthecordusingoneconsistentformoftirecordandoneconsistentrubbercompound.Thistestmethodmaybeusedtoevaluatecordsinindustrialhoseandbeltingproductsandothercordreinforcedrubberproducts.1.3ThevaluesstatedineitherSIunitsorinch-poundunitsaretoberegardedseparatelyasstandard.Thevaluesstatedineachsystemmaynotbeexactequivalents;therefore,eachsystemshallbeusedindependentlyofthe......
【中国标准分类号】:G41
【国际标准分类号】:83_160_01
【页数】:5P.;A4
【正文语种】:英语