GM9084P 中英文版

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1、TestForPrevailingTorqueNuts预置扭矩螺帽测试Note:Nothinginthisstandardsupersedesapplicablelawsandregulations.注：该标准不能代替适用的规定。Note:IntheeventofconflictbetweentheEnglishanddomesticlanguage,theEnglishlanguageshalltakeprecedence.注：若有英文与本土语言的分歧，英文为优先。1.1Purpose.Thisstandardprovidesamethodforevalu

2、atingcertainperformancecharacteristicsofprevailingtorquetypenuts.1.1目的：该标准提供了测试预置扭矩扭矩型螺帽某些特性的方法。1.2Foreword.Notapplicable.1.2序：不适用1.3Applicability.Thetestconsistsofoneinstallationandoneremovalofthenutinatestmachineusingaconstantspeednutrunner.Forthetest,thenutisassembledonaphosphat

3、eandoilcoatedboltofagradeorpropertyclasscorrespondingtothenut,andazincplatedtestwasherisusedasthebearingsurface.Duringtheinstallationandremoval,threequantitiesaremeasuredandrecordedelectronically:(1)prevailingtorqueon,(2)torqueatspecifiedtension,and(3)prevailingtorqueoff.1.3适用性：该方法

4、包含用测试设备以稳定的速率使螺帽装配和拆御的过程。对于测试，螺帽装配在一个合适等级（依螺帽而定）的磷化和涂油的螺栓，并用一镀锌的华司相配合。在装配与拆御过程中，三个值要被测试并记录：1装配扭矩，2特定力时的扭矩，3.拆御扭矩2ReferencesNote:Onlythelatestapprovedstandardsareapplicableunlessotherwisespecified.2参考资料注：无特殊规定，只能参考最新版本的标准。2.1ExternalStandards/Specifications.ASMEB1.1ASTMF1470ASMEB1.1

5、3MSAE/USCAR-102.1外来标准ASMEB1.1ASTMF1470ASMEB1.13MSAE/USCAR-102.2GMStandards/Specifications.GM280MGM500MGM286MGM510MGM300MGMW3179GM301M2.2GM标准GM280MGM500MGM286MGM510MGM300MGMW3179GM301M3Resources3资源3.1Facilities.Notapplicable.3.1设备。不适用。3.2Equipment.3.2仪器设备3.2.1TestBolts.Testboltsshal

6、lcorrespondtothesizeandstrengthlevelofthenutstobetested.Testboltsshallhaveanultimatestrengthrelatedtothespecifiedproofloadofthenuttobetested.BoltsshallhaveaphosphateandoilfinishconformingtoGMW3179CodeA.Theyshallbeclean,andshallbeusedasoiledinphosphateandoiloperationwithoutanyadditi

7、onallubricationthatwouldalterfunctionalcharacteristicsofthethreads.Anewboltshallbeusedforeachnuttested.3.2.1测试螺栓。测试螺栓的规格等级就与测试螺栓一致。测试螺栓应具备测试与螺帽所规定的保证载荷相关的极限强度。3.2.2InchSeries.ForGM286Mnuts,testboltsconformingtoGM280Mshallbeused.ForGM301Mnuts,testboltsconformingtoGM300Mshallbeused.F

8、orothernutmaterials,testbo