SAE AMS5623 Steel Bars and Forgings, High Expansion, 9.5Ni - 5.5Mn (0.55 - 0.65C) Annealed
时间:2024-04-26 22:50:40 来源: 标准资料网 作者：标准资料网 阅读：9276
Product Code:SAE AMS5623
Title:Steel Bars and Forgings, High Expansion, 9.5Ni - 5.5Mn (0.55 - 0.65C) Annealed
Issuing Committee:Ams F Corrosion Heat Resistant Alloys Committee
Scope:This specification covers a high-expansion steel in the form of bars, forgings, and forging stock.
【英文标准名称】:TestMethodforAnalysisforDeterminingResidualVinylChlorideMonomerContentinPPBRangeinVinylChlorideHomo-andCo-PolymersbyHeadspaceGasChromatography
【原文标准名称】:用液面气体色层分离法测定氯乙烯均聚物和共聚物中的十亿分之一级残余氯乙烯单体含量的分析方法
【标准号】:ASTMD4443-1984
【标准状态】:作废
【国别】:美国
【发布日期】:1984
【实施或试行日期】:
【发布单位】:美国材料与试验协会(ASTM)
【起草单位】:ASTM
【标准类型】:()
【标准水平】:()
【中文主题词】:塑料;氯乙烯;高聚物;单体;残留物含量;工艺;分析;色谱法;测定
【英文主题词】:vinylchloride;chromatography;polymers;plastics;residualcontent;analysis;processes;determination;monomers
【摘要】:
【中国标准分类号】:G31
【国际标准分类号】:83_080_00
【页数】:4P;A4
【正文语种】:英语
【英文标准名称】:StandardPracticeforGuarded-Hot-PlateDesignUsingCircularLine-HeatSources
【原文标准名称】:使用圆形线性加热源的护热板设计的标准实施规程
【标准号】:ASTMC1043-2006(2010)
【标准状态】:现行
【国别】:
【发布日期】:2006
【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】:C16.30
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:防护热板装置;热流;线光源加热器;恒定态;导热性;隔热;热变电阻
【英文主题词】:guardedhotplateapparatus;heatflow;linesourceheater;steadystate;thermalconductivity;thermalinsulation;thermalresistance
【摘要】:Thispracticedescribesthedesignofaguardedhotplatewithcircularline-heatsourcesandprovidesguidanceindeterminingthemeantemperatureofthemeterplate.Itprovidesinformationandcalculationproceduresfor:(1)controlofedgeheatlossorgain(AnnexA1);(2)locationandinstallationofline-heatsources(AnnexA2);(3)designofthegapbetweenthemeterandguardplates(AppendixX1);and(4)locationofheaterleadsforthemeterplate(AppendixX2).Acircularguardedhotplatewithoneormoreline-heatsourcesisamenabletomathematicalanalysissothatthemeansurfacetemperaturecanbecalculatedfromthemeasuredpowerinputandthemeasuredtemperature(s)atoneormoreknownlocations.Further,acircularplategeometrysimplifiesthemathematicalanalysisoferrorsresultingfromheatgainsorlossesattheedgesofthespecimens(seeRefs(10,11)).Inpractice,itiscustomarytoplacetheline-heatsource(s)inthemeterplateataprescribedradiussuchthatthetemperatureattheouteredgeofthemeterplateisequaltothemeansurfacetemperatureoverthemeterarea.Thus,thedeterminationofthemeantemperatureofthemeterplatecanbeaccomplishedwithasmallnumberoftemperaturesensorsplacednearthegap.Aguardedhotplatewithoneormoreline-heatsourceswillhavearadialtemperaturevariation,withthemaximumtemperaturedifferencesbeingquitesmallcomparedtotheaveragetemperaturedropacrossthespecimens.Providedguardingisadequate,onlythemeansurfacetemperatureofthemeterplateentersintocalculationsofthermaltransmissionproperties.Caremustbetakentodesignacircularline-heat-sourceguardedhotplatesothattheelectric-currentleadstoeachheatereitherdonotsignificantlyalterthetemperaturedistributionsinthemeterandguardplatesorelseaffectthesetemperaturedistributionsinaknownwaysothatappropriatecorrectionscanbemade.Theuseofoneorafewcircularline-heatsourcesinaguardedhotplatesimplifiesconstructionandrepair.Forroom-temperatureoperation,theplatesaretypicallyofone-piecemetalconstructionandthusareeasilyfabricatedtotherequiredthicknessandflatness.Thedesignofthegapisalsosimplified,relativetogapdesignsfordistributed-heat-sourcehotplates.Inthesingle-sidedmodeofoperation(seePracticeC1044),thesymmetryoftheline-heat-sourcedesignintheaxialdirectionminimizeserrorsduetoundesiredheatflowacrossthegap.1.1Thispracticecoversthedesignofacircularline-heat-sourceguardedhotplateforuseinaccordancewithTestMethodC177.Note18212;TestMethodC177describestheguarded-hot-plateapparatusandtheapplicationofsuchequipmentfordeterminingthermaltransmissionpropertiesofflat-slabspecimens.Inprinciple,thetestmethodincludesapparatusdesignedwithguardedhotplateshavingeitherdistributed-orline-heatsources.1.2Theguardedhotplatewithcircularline-heatsourcesisadesigninwhichthemeterandguardplatesarecircularplateshavingarelativelysmallnumberofheaters,eachembeddedalongacircularpathatafixedradius.Inoperation,theheatfromeachline-heatsourceflowsradiallyintotheplateandistransmittedaxiallythroughthetestspecimens.1.3Themeterandguardplatesarefabricatedfromacontinuouspieceofthermallyconduc......
【中国标准分类号】:
【国际标准分类号】:17_200_10
【页数】:16P.;A4
【正文语种】: