ASTM F38-2000(2006) 垫片材料蠕变松驰作用的标准试验方法

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【英文标准名称】:StandardTestMethodsforCreepRelaxationofaGasketMaterial
【原文标准名称】:垫片材料蠕变松驰作用的标准试验方法
【标准号】:ASTMF38-2000(2006)
【标准状态】:现行
【国别】:
【发布日期】:2000
【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】:F03.20
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:creeprelaxation;deflection;gasketmaterial;platens;relaxometer;strain;stress;temperature;torquebolt;torqueloss
【摘要】:Thesetestmethodsaredesignedtocomparerelatedmaterialsundercontrolledconditionsandtheirabilitytomaintainagivencompressivestressasafunctionoftime.Aportionofthetorquelossontheboltedflangeisaresultofcreeprelaxation.Torquelosscanalsobecausedbyelongationofthebolts,distortionoftheflanges,andvibration;therefore,theresultsobtainedshouldbecorrelatedwithfieldresults.Thesetestmethodsmaybeusedasaroutinetestwhenagreeduponbetweentheconsumerandtheproducer.Note18212;TestMethodBwasdevelopedusingasbestosgasketmaterialsandatissuancesubstantiatingdatawerenotavailableforothergasketmaterials.FIG.1Relaxometer,TestMethodA1.1Thesetestmethodsprovideameansofmeasuringtheamountofcreeprelaxationofagasketmaterialatapredeterminedtimeafteracompressivestresshasbeenapplied.1.1.1TestMethodACreeprelaxationmeasuredbymeansofacalibratedstraingaugeonabolt.1.1.2TestMethodBCreeprelaxationmeasuredbymeansofacalibratedboltwithdialindicator.1.2ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:J22
【国际标准分类号】:21_140
【页数】:9P.;A4
【正文语种】: