EN 302842-4-2006 电磁兼容性和射频频谱管理(ERM).VHF空对地和空对空数字链(VDL)模式4无线电设备.航空移动(空运)设备的技术特征和测量方法.第4部分:点对点功能
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【英文标准名称】:ElectromagneticcompatibilityandRadiospectrumMatters(ERM)-VHFair-groundandair-airDigitalLink(VDL)Mode4radioequipment-Technicalcharacteristicsandmethodsofmeasurementforaeronauticalmobile(airborne)equipment-Part4:Point-to-poi
【原文标准名称】:电磁兼容性和射频频谱管理(ERM).VHF空对地和空对空数字链(VDL)模式4无线电设备.航空移动(空运)设备的技术特征和测量方法.第4部分:点对点功能
【标准号】:EN302842-4-2006
【标准状态】:现行
【国别】:
【发布日期】:2007-05
【实施或试行日期】:
【发布单位】:欧洲标准学会(EN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:航空运输;航空无线电;传播技术;数字的;数字连接;电气工程;电磁兼容性;信息处理;测量技术;无线电装置;电信;测试;甚高频
【英文主题词】:Airtransport;Aircraftradio;Communicationtechnology;Digital;Digitalconnections;Electricalengineering;Electromagneticcompatibility;Informationprocessing;Measuringtechniques;Radiosystems;Telecommunication;Telecommunications;Testing;VHF
【摘要】:
【中国标准分类号】:L06
【国际标准分类号】:33_060_99
【页数】:2P.;A4
【正文语种】:英语
【英文标准名称】:StandardPracticeforQuantitativeMeasurementandReportingofHypoeutectoidCarbonandLow-AlloySteelPhaseTransformations
【原文标准名称】:亚共析碳钢和低合金钢相位变换的定量测量和报告的标准规程
【标准号】:ASTMA1033-2010
【标准状态】:现行
【国别】:
【发布日期】:2010
【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】:A01.13
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:膨胀计测定法;相位变换;薄板;应变;碳钢;连续涂层变换数据;热膨胀计法;尺寸变化;高速膨胀测定法技术;亚共析钢相位变换;等温条件/测试;低合金钢;微观结构;相(位)分析;定量分析/测量;钢棒
【英文主题词】:dilatometry;phasetransformations;steel;strain;Carbonsteel;Continuouscoatingtransformationdata;Dilatometermethod;Dimensionalchange;Highspeeddilatometrytechniques;Hypoeuctectoidsteelphasetransformations;Isothermalconditions/testi
【摘要】:Thispracticeisusedtoprovidesteelphasetransformationdatarequiredforuseinnumericalmodelsforthepredictionofmicrostructures,properties,anddistortionduringsteelmanufacturing,forging,casting,heattreatment,andwelding.Alternatively,thepracticeprovidesendusersofsteelandfabricatedsteelproductsthephasetransformationdatarequiredforselectingsteelgradesforagivenapplicationbydeterminingthemicrostructureresultingfromaprescribedthermalcycle.Thereareavailableseveralcomputermodelsdesignedtopredictthemicrostructures,mechanicalproperties,anddistortionofsteelsasafunctionofthermalprocessingcycle.Theiruseispredicatedontheavailabilityofaccurateandconsistentthermalandtransformationstraindata.Strain,boththermalandtransformation,developedduringthermalcyclingistheparameterusedinpredictingbothmicrostructureandproperties,andforestimatingdistortion.Itshouldbenotedthatthesemodelsareundergoingcontinueddevelopment.Thisprocessisaimed,amongotherthings,atestablishingadirectlinkbetweendiscretevaluesofstrainandspecificmicrostructureconstituentsinsteels.Thispracticedescribesastandardizedmethodformeasuringstrainduringadefinedthermalcycle.Thispracticeissuitableforprovidingdataforcomputermodelsusedinthecontrolofsteelmanufacturing,forging,casting,heat-treating,andweldingprocesses.Itisalsousefulinprovidingdataforthepredictionofmicrostructuresandpropertiestoassistinsteelalloyselectionforend-useapplications.Thispracticeissuitableforprovidingthedataneededfortheconstructionoftransformationdiagramsthatdepictthemicrostructuresdevelopedduringthethermalprocessingofsteelsasfunctionsoftimeandtemperature.Suchdiagramsprovideaqualitativeassessmentoftheeffectsofchangesinthermalcycleonsteelmicrostructure.AppendixX2describesconstructionofthesediagrams.Itshouldberecognizedthatthermalandtransformationstrains,whichdevelopinsteelsduringthermalcycling,aresensitivetochemicalcomposition.Thus,anisotropyinchemicalcompositioncanresultinvariabilityinstrain,andcanaffecttheresultsofstraindeterminations,especiallydeterminationofvolumetricstrain.Strainsdeterminedduringcoolingaresensitivetothegrainsizeofaustenite,whichisdeterminedbytheheatingcycle.ThemostconsistentresultsareobtainedwhenaustenitegrainsizeismaintainedbetweenASTMgrainsizesof5to8.Finally,theeutectoidcarboncontentisdefinedas0.8%forcarbonsteels.Additionsofalloyingelementscanchangethisvalue,alongwithAc1andAc3temperatures.Heatingcyclesneedtobeemployed,asdescribedbelow,toensurecompleteformationofausteniteprecedingstrainmeasurementsduringcooling.1.1Thispracticecoversthedeterminationofhypoeutectoidsteelphasetransformationbehaviorbyusinghigh-speeddilatometrytechniquesformeasuringlineardimensionalchangeasafunctionoftimeandtemperature,andreportingtheresultsaslinearstrainineitheranumericalorgraphicalformat.1.2Thepracticeisapplicabletohigh-speeddilatometryequipmentcapableofprogrammablethermalprofilesandwithdigitaldatastorageandoutputcapability.1.3Thispracticeisapplicabletothedeterminationofsteelphasetransformationbehaviorunderbothisothermalandcontinuouscoolingconditions.1.4Thispracticeincludesrequirementsforobtainingmetallographicinformationtobeusedasasupplementtothedilatometrymeasurements.1.5ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.6Thisstandarddoesnotpurporttoa......
【中国标准分类号】:H20
【国际标准分类号】:77_040_99
【页数】:14P.;A4
【正文语种】:
【英文标准名称】:Packaging;Complete,filledtransportpackages;Compressiontest
【原文标准名称】:包装.满装的运输包装.压缩试验
【标准号】:ISO2872-1973
【标准状态】:作废
【国别】:
【发布日期】:
【实施或试行日期】:
【发布单位】:国际标准化组织(IX-ISO)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:
【中国标准分类号】:
【国际标准分类号】:
【页数】:
【正文语种】:
