ISO 3223-1998 航空航天.等级为:1100MPa(环境温度)/235℃、1100MPa(环境温度)/315℃和1100MPa(环境温度)/425℃,带沉孔及MJ螺纹的双耳固定托板自锁螺母.尺寸

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【英文标准名称】:Aerospace-Nuts,anchor,self-locking,fixed,twolug,withcounterbore,withMJthreads,classifications:1100MPa(atambienttemperature)/235°C,1100MPa(atambienttemperature)/315°Cand1100MPa(atambienttemperature)/425°C-Dimensions
【原文标准名称】:航空航天.等级为:1100MPa(环境温度)/235℃、1100MPa(环境温度)/315℃和1100MPa(环境温度)/425℃,带沉孔及MJ螺纹的双耳固定托板自锁螺母.尺寸
【标准号】:ISO3223-1998
【标准状态】:现行
【国别】:国际
【发布日期】:1998-11
【实施或试行日期】:
【发布单位】:国际标准化组织(ISO)
【起草单位】:ISO/TC20
【标准类型】:()
【标准水平】:()
【中文主题词】:工业;尺寸;系紧螺母;飞行器;螺母;防松螺母;飞行器部件;紧固件;托板螺母;航空运输
【英文主题词】:Airtransport;Aircraft;Aircraftcomponents;Anchornuts;Dimensions;Fasteners;Industries;Locknuts;Nuts;Platenuts
【摘要】:ThisInternationalStandardspecifiesthedimensionsofself-locking,fixed,twoluganchornuts,withcounterbore,withMJthreads,ofclassifications:1100MPa/235℃,1100MPa/315℃and1100MPa/425℃.ThisInternationalStandardisonlyapplicableforthecompilationofaerospaceproductstandards.note:1)Correspondstotheminimumtensilestresswhichthenutisabletowithstandatambienttemperaturewithoutbreakingorcrackingwhentestedwithaboltofahigherstrengthclass.2)Maximumtemperaturethatthenutisabletowithstand,withoutpermanentalterationtoitsoriginalcharacteristics,afterambienttemperaturehasbeenrestored.Themaximumtemperatureisconditionedbythesurfacetreatment
【中国标准分类号】:V20
【国际标准分类号】:49_030_30
【页数】:3P;A4
【正文语种】:英语


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【英文标准名称】:StandardPracticeforStyrene-ButadieneRubber(SBR)8212;EstablishingRawMooneyViscosityTargetValues
【原文标准名称】:苯乙烯聚丁橡胶(SBR)标准规范-原始穆尼粘度目标值的确定
【标准号】:ASTMD5605-1994(2007)
【标准状态】:现行
【国别】:
【发布日期】:1994
【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】:D11.23
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:橡胶;实施规程;穆尼单位;聚丁橡胶;粘度计
【英文主题词】:Mooneyviscosity;SBR;targetvalues
【摘要】:Mooneyviscosityisusedextensivelyintherubberindustryasameasurementofthegeneralqualityofraworcompoundeduncuredrubber.Thisspecialviscosityhasbeenrelatedtoaveragemolecularweightandtohandlingandprocessingcharacteristicsinvariousrubberoperationssuchasmixing,extruding,molding,andsoforth.ThispracticeaddressestherawMooneyviscosityofSBRinitsfinishedstateattheSBRmanufacturerrsquo;plantandintheready-to-usestateattherubberproductmanufacturerrsquo;plant.DifferentprocessesanddifferentprocessingequipmentoftenrequirerubberofthesamecompositionatdifferentrawMooneyviscositylevels.TheuseofthispracticeenablesproducersofSBRtooffereachrubberwithanumberofstandardtargetMooneyviscosityvaluesandinformsuserswhichMooneyviscosityrubbersareavailable.Note18212;UseofthispracticewilleliminatetheneedforproducerstomanufacturerubbersofthesamecompositionwithtargetMooneyvaluesunrealisticallyclosetogether.Thiswillallowthemanufacturerstoproducetoeachtarget,andeliminatetheneedtosortproductformanydifferentspecificationranges.Theresultwillbeimprovedprocessperformanceindexesandmoreconsistentrubberforallusers.Note28212;Usingthispracticewillbenefitusersbyprovidingapublishedlistoftheproducerrsquo;Mooneyviscositytargetvaluesandimprovedconsistencyoftherubbertheyreceive.Thebetterconsistencywillresultfromproducingrubbertoatargetratherthansortingitafteritistested.Interchangeabilityofrubbersfromdifferentproducersshouldbesimplified.1.1Thispracticecoversameansforproducersandusersofemulsionstyrene-butadienerubber(SBR)toestablishcommontargetvaluesfortheMooneyviscosityoftheserubbers.1.2MooneyviscosityisawidelyusedmeasurementforrubberasdefinedinTestMethodsD1646wheretheprocedureforitsmeasurementisspecified.1.3TheMooneyviscositytargetvalueisdefinedasthemidpointofaMooneyviscosityspecificationrangeestablishedbyaproduceroruserofrubber.
【中国标准分类号】:G40
【国际标准分类号】:83_060
【页数】:2P.;A4
【正文语种】:


【英文标准名称】:Applicationguideforcalculationofshort-circuitcurrentsinlow-voltageradialsystems
【原文标准名称】:低压辐射系统短路电流计算的应用指南
【标准号】:IEC60781-1989
【标准状态】:作废
【国别】:国际
【发布日期】:1989-01
【实施或试行日期】:
【发布单位】:国际电工委员会(IEC)
【起草单位】:IEC/TC73
【标准类型】:()
【标准水平】:()
【中文主题词】:电气工程;定义;电网;低电压;数学计算;三相电流;短路电流;三相电力网
【英文主题词】:lowvoltage;mathematicalcalculations;short-circuitcurrents;electricpowernetworks;three-phasecurrent;definitions;electricalengineering;three-phasenetworks
【摘要】:
【中国标准分类号】:K04
【国际标准分类号】:29_240_30
【页数】:29P;A4
【正文语种】:英语