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【英文标准名称】:ContinuousandDoubleEndStuds-InchSeries
【原文标准名称】:连续作用和双端螺柱.英寸系列
【标准号】:ANSI/ASMEB18.31.2-2008
【标准状态】:现行
【国别】:美国
【发布日期】:2008
【实施或试行日期】:
【发布单位】:美国国家标准学会(US-ANSI)
【起草单位】:ANSI
【标准类型】:()
【标准水平】:()
【中文主题词】:连续的;双;螺柱
【英文主题词】:Continuous;Double;Studs;Threadedstuds
【摘要】:ThisstandardcoversthecompletedimensionalandgeneraldataforcontinuousthreadanddoubleendinchdimensionedstudsrecognizedasAmericanNationalStandard.Thefollowingconfigurationsarecovered:ContinuousThreadStud-Studsthatarethreadedovertheircompletelength.DoubleEndStud(ClampingType-IdenticalEnds)-Studswithscrewthreadsofthesamelengthandconfigurationoneachend.Thistypestudservesthefunctionofclampingtwobodiestogetherwithanutoneachend.DoubleEndStud(TapEndType)-Astuddesignedtobeinstalledinatappedholeandusuallywithdifferentthreadedlengthsoneachend.Forthetapendofthestuds,bothregularunifiedthreadsandinterferencefitthreadsarecovered.Doubleendstudsofthefollowingbodydiametersarecovered:ReducedDiameter,Body,FullBody.
【中国标准分类号】:J13
【国际标准分类号】:21_060_10
【页数】:
【正文语种】:英语


【英文标准名称】:StandardTestMethodforRubberShaftSealsDeterminationofRecoveryFromBending
【原文标准名称】:测定橡胶轴密封件从弯曲复原的标准试验方法
【标准号】:ASTMD6515-2000(2004)
【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】:D11.37
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:从弯曲恢复;橡胶;轴密封件
【英文主题词】:recoveryfrombending;rubber;shaftseals
【摘要】:Amongthefactorsaffectingshaftseallifearetheabilitytoretainelasticityandcompensateforshafteccentricity,abilitytorecoverfrombending,andresistancetowearandtheswellingeffectsofcontactfluids.In-servicetestingofcandidatematerialsistimeconsumingandthereforecostly.Measurementofrecoveryfrombendingafterexposureinfluidsatelevatedtemperaturesprovidesameansofquicklyassessingthematerial’potentialandacceptabilityforuse.Comparativerecoverydatamaythenbescreenedandoptimumperformingcompoundsselectedforfurtherimprovementorsealfabrication.Ithasbeenfoundthatgoodtoexcellentcorrelationexistsbetweenamaterial’abilitytorecoverfrombendingandsealingeffectiveness.Thismethodisdesignedtomeasuretherecoveryofdifferentrubbercompoundsafteraginginanyliquidmedium,includinghydraulicoilsandwater.Thismethodcanalsobeusedtotestrubbercompoundsafteraginginair.Testliquidsshouldbechosenbasedontheintendedenduse.1.1Thistestmethodcoversaproceduretodeterminetherecoveryresponseofrubberafterparticularbendingdeformation,subsequenttoaginginselectedmediaataspecifiedtemperature,andforaspecifiedtimeperiod,thusprovidingameasureoftherelativeperformancepotentialofcompoundsusedinthemanufactureofshaftseals.1.2ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:J22
【国际标准分类号】:83_140_50
【页数】:7P.;A4
【正文语种】: