SAE AMS5338 Steel, Investment Castings, 0.95Cr - 0.20Mo (0.35 - 0.45C) (SAE 4140 Mod), Normalized or Normalized and Temp
时间:2024-05-16 14:54:44 来源: 标准资料网 作者：标准资料网 阅读：8167
Product Code:SAE AMS5338
Title:Steel, Investment Castings, 0.95Cr - 0.20Mo (0.35 - 0.45C) (SAE 4140 Mod), Normalized or Normalized and Tempered
Issuing Committee:Ams E Carbon And Low Alloy Steels Committee
Scope:This specification covers a low-alloy steel in the form of investment castings.These castings have been used typically for small structural parts of intricate design requiring heat treatment to minimum tensile strengths up to 175 ksi (1207 MPa), but usage is not limited to such applications.
【英文标准名称】:StandardTestMethodsforDetectingGlycol-BaseAntifreezeinUsedLubricatingOils
【原文标准名称】:检测已用润滑油中乙二醇基防冻剂的标准试验方法
【标准号】:ASTMD2982-2007
【标准状态】:现行
【国别】:美国
【发布日期】:2007
【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】:D02.06
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:glycol-baseantifreeze;glycol-basecoolant;usedlubricatingoil;Enginecoolants/concentrates;Ethyleneglycol;Glycol-baseantifreeze;Lubricatingoils;Mineraloils;Usedlubricatingoils
【摘要】:Leakageofglycol-baseantifreezeintothecrankcaseisseriousbecausethecoolanttendstointerferewiththelubricantanditsabilitytolubricate;italsopromotessludging.Ethyleneglycolpresentinthecoolantcanincreasevarnishdepositformationinthecrankcaseasaresultofglycoloxidationandtheinteractionbetweenglycolandlubricant.Furthermore,becauseglycolisahigherboilingmaterialthanwater,itwilltendtostaylongerinthecrankcaseoilthanwater.Lubricantdisplacement,sludging,anddepositformationallleadtoenginemalfunctionandpossibleseizure.Thesetestsaredesignedtodetectglycol-basecoolantcontaminationevenatlowlevelsbecauseearlydetectionenablescorrectivemeasurestobetakentopreventleakingcoolantfromaccumulatingandseriouslydamagingtheengine.Thesetestmethodsarealsosignificantbecausethereagentscanbepackagedasafieldkit,andtheprocedurecanbefollowedatthesitewherethereisaconcern.1.1Thesetestmethodscoverthequalitativedeterminationofglycol-baseantifreezeinusedlubricatingoils(mineralbase)bytwoprocedures,oneusingreagentsintabletformandtheotherusinglaboratoryshelfreagents.Principallythetestmethodsdetectethyleneglycolbutwillalsodetectother1,2-glycolsthatmaybepresent.1.1.1Whenapositiveresultisobtainedandasampleoftheunusedoilisavailable,theunusedoilisalsotestedandusedasareference.Note18212;Sincetheinceptionofthistestmethod(1971),therehavebeenmanychangesinbasestocktechnologyandadditivetechnology.Therefore,whenavailable,thenew,unusedoil,orasampleofthesameusedoil,knowntonotcontainantifreeze,istestedasareference.1.2Thetabletprocedure(ProcedureA)issensitivetoabout100mg/kgandtheshelfreagentprocedure(ProcedureB)toabout300mg/kgofethyleneglycol.1.3Glycol-basedcoolantleaksintocrankcasesmaynotbedetectedormayresultinalowbiasusingthesetestmethodsiftheglycolhasdegradedorbeenthermallyorotherwiseoxidized.Theconditionsincrankcasesmaybesuchthatcontaminantglycolsareoxidizedordegradedtoadegreetowhichthecolorindicatorreactiondoesnotoccurorisbiasedenoughsoastonottriggerthecolorchange.Othertestmethodsforthedetectionofcoolantsorcoolantadditivesinlubricatingoilsshouldbeusediftheresultsfromthesetestmethodsaloneareinconclusiveorquestionable.1.4Carbohydratessuchassugarsandsugar-containingsubstancesaresometimesusedforsabotagepurposes.Ifthepresenceofthesesubstancesissuspected,ProcedureAcontainsamodificationtoremovetheseinterferences.1.5Bothproceduresareadaptabletofieldkituse,andbriefdescriptionsforconvertingtofieldkitformaregiveninAnnexA1.Commercialfieldtestingkitsareavailable.,1.6Theresultsobtainedbythismethodarequalitativeexpressions.However,forthepreparationofreagentsandintheprocedures,acceptableSIunitsaretoberegardedasthestandard.1.7Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:E34
【国际标准分类号】:75_100
【页数】:5P.;A4
【正文语种】:英语
【英文标准名称】:StandardSpecificationforHard-DrawnCopper-CladSteelWire
【原文标准名称】:冷拉包铜钢丝标准规范
【标准号】:ASTMB227-2002
【标准状态】:作废
【国别】:美国
【发布日期】:2002
【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】:金属线;涂覆的;铜;钢
【英文主题词】:steels;copper;wires;coated
【摘要】:
【中国标准分类号】:H62
【国际标准分类号】:77_140_65
【页数】:4P;A4
【正文语种】:英语