DIN 6364-1994 带紧定螺纹的莫氏锥柄的7:24锥度转位套
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【英文标准名称】:Reductionsleeveswithexternaltapershank7/24formorsetapershankwithtighteningthread
【原文标准名称】:带紧定螺纹的莫氏锥柄的7:24锥度转位套
【标准号】:DIN6364-1994
【标准状态】:作废
【国别】:德国
【发布日期】:1994-01
【实施或试行日期】:
【发布单位】:德国标准化学会(DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:刀具柄;设计;大锥度;异径连接套;莫氏锥柄;刀具夹持装置;锥柄;套筒;工具;机床部件;尺寸;材料;机床;夹具
【英文主题词】:machinetools;dimensions;toolshanks;materials;tool-holdingdevices;machinetoolcomponents;tools;tapershanks;sleeves(mechanicalcomponents);morsetapershanks;steeptapers;fixtures;reductionsleeve
【摘要】:
【中国标准分类号】:J52
【国际标准分类号】:25_060_20
【页数】:4P;A4
【正文语种】:德语
【英文标准名称】:StandardPracticeforInSituElectromagnetic(Eddy-Current)ExaminationofNonmagneticHeatExchangerTubes
【原文标准名称】:非磁性换热管现场电磁(涡流)检验的标准实施规程
【标准号】:ASTME690-2010
【标准状态】:现行
【国别】:美国
【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】:E07.07
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:
【英文主题词】:eddy-current;electromagnetic;NDT;nondestructivetesting;Condenserandheatexchangersystems;Curietemperature;Eddycurrentexamination;Electromagnetic(eddycurrent)testing;Nonmagneticheatexchangertubes
【摘要】:Eddy-currentexaminationisanondestructivemethodoflocatingdiscontinuitiesintubingmadeofmaterialsthatconductelectricity.Signalscanbeproducedbydiscontinuitieslocatedeitherontheinneroroutersurfacesofthetube,orbydiscontinuitiestotallycontainedwithinthetubewall.Whenusinganinternalprobe,thedensityofeddycurrentsinthetubewalldecreasesveryrapidlyasthedistancefromtheinternalsurfaceincreases;thustheamplitudeoftheresponsetooutersurfacediscontinuitiesdecreasescorrespondingly.Someindicationsobtainedbythismethodmaynotberelevanttoproductquality.Forexample,anirrelevantsignalmaybecausedbymetallurgicalormechanicalvariationsthataregeneratedduringmanufacturebutthatarenotdetrimentaltotheenduseoftheproduct.Irrelevantindicationscanmaskunacceptablediscontinuitiesoccurringinthesamearea.Relevantindicationsarethosethatresultfromnonacceptablediscontinuities.Anyindicationabovetherejectlevel,whichisbelievedtobeirrelevant,shallberegardedasunacceptableuntilitisproventobeirrelevant.Fortubinginstalledinheatexchangers,predictablesourcesofirrelevantindicationsarelands(shortunfinnedsectionsinfinnedtubing),dents,scratches,toolchattermarks,orvariationsincoldwork.Rollingtubesintothesupportsmayalsocauseirrelevantindications,asmaythetubesupportsthemselves.Eddy-currentexaminationsystemsaregenerallynotabletoseparatetheindicationgeneratedbytheendofthetubefromindicationsofdiscontinuitiesadjacenttotheendsofthetube(endeffect).Therefore,thisexaminationmaynotbevalidattheboundariesofthetubesheets.1.1Thispracticedescribesprocedurestobefollowedduringeddy-currentexamination(usinganinternal,probe-type,coilassembly)ofnonmagnetictubingthathasbeeninstalledinaheatexchanger.Theprocedurerecognizesboththeuniqueproblemsofimplementinganeddy-currentexaminationofinstalledtubing,andtheindigenousformsoftube-walldeteriorationwhichmayoccurduringthistypeofservice.Thedocumentprimarilyaddressesscheduledmaintenanceinspectionofheatexchangers,butcanalsobeusedbymanufacturersofheatexchangers,eithertoexaminetheconditionofthetubesafterinstallation,ortoestablishbaselinedataforevaluatingsubsequentperformanceoftheproductafterexposuretovariousenvironmentalconditions.Theultimatepurposeisthedetectionandevaluationofparticulartypesoftubeintegritydegradationwhichcouldresultinin-servicetubefailures.1.2Thispracticedoesnotestablishacceptancecriteria;theymustbespecifiedbytheusingparties.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:H26
【国际标准分类号】:
【页数】:4P.;A4
【正文语种】:英语
【英文标准名称】:Petroleumandrelatedproducts-Determinationoftheageingbehaviourofinhibitedoilsandfluids-TOSTtest-Procedureformineraloils
【原文标准名称】:石油和相关产品.抗氧化油和流体的老化性测定.TOST试验.矿物油规程
【标准号】:BSENISO4263-1-2004
【标准状态】:现行
【国别】:英国
【发布日期】:2005-01-25
【实施或试行日期】:2005-01-25
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:涡轮机油;密度;矿物油;高压液体;测定;油;pH值;防腐蚀;老化性能;抗氧化;石油产品;试验设备;老化;生产过程说明;试验
【英文主题词】:Ageingbehaviour;Ageing(materials);Corrosionprotection;Density;Determination;Mineraloils;Oils;Oxidationresistance;Petroleumproducts;pH;Pressureliquids;Processdescription;Testequipment;Testing;Turbineoils
【摘要】:ThispartofISO4263specifiesamethodforthedeterminationoftheageingbehaviourofrust-andoxidation-inhibitedmineraloilshavingadensitylessthanthatofwater,usedasturbineoils(categoriesTSA,TGA,TSE,TGEofISO6743-5,see[4]intheBibliography),hydraulicoils(categoriesHL,HM,HR,HV,HGofISO6743-4,see[3]intheBibliography),andcirculatingoils(categoryCKBofISO6743-6,see[5]intheBibliography).Oilscontainingsyntheticcomponentscanbetestedbythisprocedure,butnoprecisionstatementisavailableyetforsuchfluids.NOTE1ForthepurposesofthispartofISO4263,theterm"%(m/m)"isusedtorepresentthemassfractionofamaterial.NOTE2Othersignsofoildeterioration,suchastheformationofinsolublesludge,catalystcoilcorrosionordecreaseinpHvalue,mayoccur,whichindicateoxidationoftheoil,butarenotreflectedinthecalculatedoxidationlifetime.Thecorrelationoftheseoccurrenceswithfieldserviceisunderinvestigation.Thistestmethodiswidelyusedinspecificationsandisconsideredofvalueincomparingtheoxidationstabilityofoilsthatarepronetocontaminationwithwater.However,becauseofthelargenumberofindividualfield-serviceapplications,thecorrelationbetweentheresultsofthistestandactualserviceperformancecanvarymarkedly,andisbestjudgedonexperience.TheprecisionofthispartofISO4263foroxidationlifewasonlydeterminedoninhibitedturbineoils,andappliestooxidationlivesof700hto3900h.
【中国标准分类号】:E30
【国际标准分类号】:75_120
【页数】:26P.;A4
【正文语种】:英语