DIN EN 754-8-2008 铝和铝合金.冷拉杆材/棒材和管材.第8部分:带孔管材的尺寸和形状公差

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【英文标准名称】:Aluminiumandaluminiumalloys-Colddrawnrod/barandtube-Part8:Portholetubes,tolerancesondimensionsandform;EnglishversionofDINEN754-8:2008-06
【原文标准名称】:铝和铝合金.冷拉杆材/棒材和管材.第8部分:带孔管材的尺寸和形状公差
【标准号】:DINEN754-8-2008
【标准状态】:现行
【国别】:德国
【发布日期】:2008-06
【实施或试行日期】:
【发布单位】:德国标准化学会(DE-DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:铝;铝合金;铝管;棒材;圆管;凹形;凸形;尺寸;拉拔;偏心率;挤压的;挤压成型;形状公差;六角(边)形;长度;极限偏差;材料;测量;测量技术;有色金属合金;有色金属;八角形;管;杆材;方形杆;矩形性;半成品;方形管;平直度;公差(测量);工具;加捻;壁厚
【英文主题词】:Aluminium;Aluminiumalloys;Aluminiumpipes;Bars(materials);Circulartubes;Concave;Convex;Dimensions;Drawn;Eccentricity;Extruded;Extrusion;Formtolerances;Hexagon;Length;Limitdeviations;Materials;Measurement;Measuringtechniques;Non-ferrousalloys;Non-ferrousmetals;Octagons;Pipes;Poles;Rectangulartubes;Rectangularity;Semi-finishedproducts;Squaretubes;Straightness;Tolerances(measurement);Tools;Twisting;Wallthicknesses
【摘要】:Thisdocumentspecifiesthetolerancesondimensionsandformforaluminiumandaluminiumalloycolddrawnportholetubeswithanoutsidediameter(OD)from3mmto350mm(roundtube,seeFigure1)orwithacrosssectioncontainedwithinacircumscribingcircle(~'D)from8mmto300mm(otherthanroundtube,seeFigure2),suppliedinstraightlengths.Thisdocumentonlyappliestocolddrawntubeforgeneralengineeringapplicationsmadeinthefollowingalloys:--ENAW-1050A,ENAW-1200;--ENAW-3003,ENAW-3103;--ENAW-5005,ENAW-5005A,ENAW-5049,ENAW-5251,ENAW-5052;--ENAW-6012,ENAW-6060,ENAW-6061,ENAW-6262,ENAW-6262A;--ENAW-6063,ENAW-6063A,ENAW-6065,ENAW-6082;--ENAW-7020.ThetemperdesignationsusedinthispartareaccordingtoEN515.Thisdocumentonlyappliestotubeproducedbytheporthole/bridgemethodofextrusiononly(andthencolddrawntothefinaldimensions).Thisdocumentdoesnotapplyto:--colddrawntubesproducedbytheseamless,die/mandrelmethod(EN754-7),--tubesdeliveredincoils(EN13958),--coiledtubescuttolength(EN13958).
【中国标准分类号】:H61
【国际标准分类号】:77_150_10
【页数】:19P.;A4
【正文语种】:英语


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【英文标准名称】:StandardGuideforDevelopingandEvaluatingGround-WaterModelingCodes
【原文标准名称】:制定和评估地下水模式准则的标准指南
【标准号】:ASTMD6025-1996(2002)
【标准状态】:作废
【国别】:
【发布日期】:1996
【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】:D18.21
【标准类型】:(Guide)
【标准水平】:()
【中文主题词】:
【英文主题词】:benchmarking;computercode;groundwater;ground-watermodeling;modeltesting;qualityassurance;verification;
【摘要】:Ground-watermodelinghasbecomeanimportantmethodologyinsupportoftheplanninganddecision-makingprocessesinvolvedinground-watermanagement.Ground-watermodelsprovideananalyticalframeworkforobtaininganunderstandingofthemechanismsandcontrolsofground-watersystemsandtheprocessesthatinfluencetheirquality,especiallythosecausedbyhumaninterventioninsuchsystems.Increasingly,modelsareanintegralpartofwaterresourcesassessment,protection,andrestorationstudiesandprovideessentialandcost-effectivesupportforplanningandscreeningofalternativepolicies,regulations,andengineeringdesignsaffectinggroundwater.Itisthereforeimportantthatbeforeground-watermodelingcodesareusedasplanninganddecision-makingtools,theircredentialsareestablishedandtheirsuitabilitydeterminedthroughsystematicevaluationoftheircorrectness,performancecharacteristics,andapplicability.Thisbecomesevenmoreimportantbecauseoftheincreasingcomplexityofthehydrologicsystemsforwhichnewmodelingcodesarebeingdeveloped.Qualityassuranceinground-watermodelingprovidesthemechanismsandframeworktoensurethattheanalytictoolsusedinpreparingdecisionsarebasedonthebestavailabletechniqu1.1Thisguidecoversasystematicapproachtothedevelopment,testing,evaluation,anddocumentationofground-watermodelingcodes.Theprocedurespresentedconstitutethequalityassuranceframeworkforaground-watermodelingcode.Theyincludecodereview,testing,andevaluationusingquantitativeandqualitativemeasures.Thisguideappliestoboththeinitialdevelopmentandthesubsequentmaintenanceandupdatingofground-watermodelingcodes.1.2Whenthedevelopmentofaground-watermodelingcodeisinitiated,proceduresareformulatedtoensurethatthefinalproductconformswiththedesignobjectivesandspecificationsandthatitcorrectlyperformstheincorporatedfunctions.Theseprocedurescovertheformulationandevaluationofthecode'stheoreticalfoundationandcodedesigncriteria,theapplicationofcodingstandardsandpractices,andtheestablishmentofthecode'scredentialsthroughreviewandsystematictestingofitsfunctionaldesignandthroughevaluationofitsperformancecharacteristics.1.3Thecode'sfunctionalityneedstobedefinedinsufficientdetailforpotentialuserstoassessthecode'sutilityaswellastoenablethecodedeveloperstodesignameaningfulcodetestingstrategy.Comprehensivetestingofacode'sfunctionalityandperformance
【中国标准分类号】:D04
【国际标准分类号】:13_060_10
【页数】:16P.;A4
【正文语种】:


基本信息
标准名称:25kV电气化铁道接触网用聚合材料分段绝缘器
中标分类: 铁路 >> 牵引供电 >> 接触网零件
替代情况:被TB/T 3036-2002代替
发布日期:
实施日期:2004-11-01
首发日期:
作废日期:
出版日期:
页数:6页
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所属分类: 铁路 牵引供电 接触网零件