基本信息
| 标准名称： | 地质仪器术语 电法勘探仪器术语 |
| 英文名称： | Geological instrumentation terminology- Electrical prospecting instrument terms |
| 中标分类： |
矿业 >>
地质勘探设备 >>
地球物理勘探设备 |
| 替代情况： | 原标准号GB 11933.5-1989 |
| 发布日期： | |
| 实施日期： | 2002-12-01 |
| 首发日期： | |
| 作废日期： | |
| 出版日期： | |
| 页数： | 31页 |
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所属分类： 矿业 地质勘探设备 地球物理勘探设备
【英文标准名称】:StandardTestMethodforRubberProperty-MeasurementoftheViscousandElasticBehaviorofUnvulcanizedRawRubbersandRubberCompoundsbyCompressionBetweenParallelPlates
【原文标准名称】:通过平行板之间压缩的橡胶化合物和非含硫生橡胶黏性和弹性的橡胶特性测定的标准试验方法
【标准号】:ASTMD6049-2003(2008)
【标准状态】:现行
【国别】:美国
【发布日期】:2003
【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】:D11.12
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:compressionandrecovery;compressionforcetest;elasticbehavior;elasticproperties;elasticrecovery;elasticity;materialfatigue;non-Newtonianviscosity;parallelplate;viscosity;viscousbehavior
【摘要】:Theviscousandelasticbehaviorofunvulcanizedrubbersandrubbercompoundsisofparamountimportanceinrubbermanufacturing,sinceitaffectsprocessing,suchasmixing,calendering,extrusion,andmolding.Theuniformityofthesepropertiesisequallyimportant,asfluctuationswillcauseupsetsinmanufacturingprocesses.Atestcapableofmeasuringviscosityandelasticityofunvulcanizedrubbersandrubbercompounds,includingtheiruniformityandpredictionofprocessingbehavior,isthereforehighlydesirable(seePracticeD6048forfurtherinformation).Comparedtomanyotherrheologicaltests,thistestmethodmeasuresviscosityandelasticityrelatedparametersunderconditionsoflowshearandhasahighdiscriminatingpower.Itcandetectsmallrheologicaldifferences.AfulldiscussionoftheprinciplesbehindstressrelaxationtestingisgiveninPracticeD6048.Testresultsofthistestmethodmaybeusefulinpredictingprocessability,butcorrelationwithactualmanufacturingprocessesmustbeestablishedineachindividualcase,sinceconditionsvarytoowidely.Thistestmethodissuitableforspecificationcompliancetesting,qualitycontrol,refereepurposes,andresearchanddevelopmentwork.1.Scope1.1ThistestmethodisanadaptationoftheGermanStandardDIN53514,afurtherdevelopmentoftheformer"DefoTest"(see).1.2Thistestmethodiscapableofmeasuringandcharacterizingtherheologicalbehavior(viscosityandelasticity)ofunvulcanizedrawrubbersandrubbercompounds,relatingtothemacrostructureofrubberpolymers(averagemolecularweight,molecularweightdistribution,longchainbranching,andmicro-andmacro-gel).1.3Theviscosityandelasticityofunvulcanizedrubbersandrubbercompoundsaredeterminedbysubjectingcylindricaltestpiecestoacompression/recoverycycle.Thedependencyonshearrateatconstantshearstressisevaluatedandthematerialfatiguebehaviorisdeterminedinrepeatcycletesting.1.4Thenon-Newtonianviscousandelasticbehaviorofrubbersandrubbercompoundscanalsobeevaluated.1.5Statisticalevaluationofthetestdataprovidesanindicationofdatavariation,whichmaybeemployedasanestimateofthehomogeneityofthematerialtested.1.6ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesinparenthesesareforinformationonly.1.7Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:G34
【国际标准分类号】:83_040_10
【页数】:10P.;A4
【正文语种】:英语