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【英文标准名称】:Simpleunfiredpressurevesselsdesignedtocontainairornitrogen—Part1:Pressurevesselsforgeneralpurposes
【原文标准名称】:专用于空气或氮气的简单非受火压力容器.一般用途压力容器
【标准号】:BSEN286-1-1998
【标准状态】:作废
【国别】:英国
【发布日期】:1998-11-15
【实施或试行日期】:1998-11-15
【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】:空气;定型试验;钢筒;防腐蚀;非受火压力容器;焊接;合格试验;焊接工艺;增压舱;空气存储器;氮;安全元件;铝;焊缝;钢;压力容器;壁厚;焊接接头;压缩气体瓶;容器;作标记;文献工作;设计;认证(认可);生产;数学计算;定义;试验;材料;规范(验收);分类;安全要求
【英文主题词】:Air;Airreceivers;Aluminium;Certification(approval);Classification;Compressed-gascylinder;Conformitytesting;Containers;Corrosionprotection;Definition;Definitions;Design;Documentations;Marking;Materials;Mathematicalcalculations;Nitrogen;Pressurevessels;Pressurizedchambers;Production;Safetycomponents;Safetyrequirements;Specification(approval);Steeldrums;Steels;Testing;Typetesting;Unfiredpressurevessels;Wallthicknesses;Weldedjoints;Welding;Weldingprocesses;Welds
【摘要】:1.1ThispartofthisEuropeanStandardappliestothedesignandmanufactureofwelded,simpleunfiredpressurevesselsmanufacturedinseries,withasinglecompartment,hereinafterreferredtoasvessels,theessentialsafetyrequirementsofwhicharegiveninAnnexG.Itonlyappliestovesselsthat:a)includefabricationbywelding,butsomedesignscanentailtheuseofbolts;b)haveasimplegeometryenablingsimple-to-useproductionprocedures;thisisachievedbyeither:1)acylindricalpartofcircularcross-sectionclosedbyoutwardlydishedand/orflatendswhichrevolvearoundthesameaxisasthecylindricalpart;or2)twooutwardlydishedendsrevolvingaroundthesameaxis;c)havebranchesnotlargerindiameterthan0,5ofthediameterofthecylindertowhichtheyarewelded.1.2Itappliestovesselswhichareintendedtocontainairornitrogenwhicharenotintendedtobefiredandwhichoperatewithinthefollowingconstraints:a)subjectedtoaninternalgaugepressuregreaterthan0,5bar;b)thepartsandassembliescontributingtothestrengthofthevesselunderpressuretobemadeeitherofnon-alloyqualitysteelorofnon-alloyaluminiumornon-age-hardeningaluminiumalloys;NOTEInthispartofthestandard,theterm“aluminium”coversnon-alloyaluminiumandaluminiumalloys.c)themaximumworkingpressureisnotgreaterthan30bar.Theproductofthemaximumworkingpressureandthecapacityofthevessel(PS
V)isgreaterthan50barlbutdoesnotexceed10000barl.Below50barl,useofthisstandardisconsideredtofulfiltherequirementsofsoundengineeringpractice;d)theminimumworkingtemperatureisnotlowerthan
50C,andthemaximumworkingtemperatureisnothigherthan300Cforsteeland100Cforaluminiumoraluminiumalloyvessels.Itdoesnotapplytovesselsspecificallydesignedfornuclearuse,tovesselsspecificallyintendedforinstallationin,orthepropulsionof,shipsandaircraft,nortofireextinguishers.Thestandarddoesnotapplytotransportationvesselsnortovesselswhichalsocontainsubstancesotherthanairornitrogenwhichcouldadverselyaffecttheirsafety.Forvesselsdesignedtocontaincompressedairforthebrakingsystemsofroadvehiclesandtheirtrailers,seealsoEN286-2.Forvesselsdesignedtocontaincompressedairforthebrakingsystemsofrail-mountedvehicles,seealsoEN286-3andEN286-4.1.3Itappliestothevesselproper,fromtheinletconnectiontotheoutletconnectionandtoallotherconnectionsrequiredforvalvesandfittings.Ifbosses/pipesareused,therequirementsspecifiedhereinbeginorendattheweldwhereflanges,ifused,wouldhavebeenfitted.1.4Forthepurposesofcalculationsrequiredtobemadeinaccordancewiththisstandard,dimensionsareinmillimetres,pressuresareinbars(exceptwhereotherwisespecified),stressesareinnewtonspersquaremillimetreandtemperaturesareindegreesCelsius.
【中国标准分类号】:J74
【国际标准分类号】:23_020_30
【页数】:88P.;A4
【正文语种】:英语


【英文标准名称】:Surfacemountingtechnology-Environmentalandendurancetestmethodsforsurfacemountsolderjoint-Cyclicbendingtest
【原文标准名称】:表面安装技术.表面安装焊点的环境忍受力试验方法.周期性挠曲试验
【标准号】:BSEN62137-1-4-2009
【标准状态】:现行
【国别】:英国
【发布日期】:2009-03-31
【实施或试行日期】:2009-03-31
【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】:合金;弯曲试验;弯曲试验;温度变化;元部件;组件;连续性试验;周期的;定义;耐久性;定义(术语);分立器件;耐久性;电气工程;电子工程;电子设备及元件;耐久试验;强度测试;环境试验;环境测试;扁平接触表面;集成电路;寿命;材料测试;材料试验;机械性能;印制电路;印制电路板;可靠性;可靠度;半导体器件;表面安装设备;软钎焊连接;焊接点;焊接;钎焊;表面安装;表面安装装置;试验;测试;痕量元素分析;测试条件;试验条件
【英文主题词】:Alloys;Bendtesting;Bendingtests;Changesoftemperature;Components;Continuitytests;Cyclic;Definitions;Discretedevices;Durability;Electricalengineering;Electronicengineering;Electronicequipmentandcomponents;Endurancetesting;Environmentaltesting;Flatcontactsurfaces;Integratedcircuits;Life(durability);Materialstesting;Mechanicalproperties;Printedcircuits;Printed-circuitboards;Reliability;Semiconductordevices;SMD;Solderedjoints;Solderingpoints;Solderings;Surfacemounting;Surfacemountingdevices;Testing;Testingconditions
【摘要】:ThetestmethoddescribedinthispartofIEC62137appliestosurfacemountcomponentswithathinandwidebasalplane,suchasQFPandBGA.Thistestmethodevaluatestheenduranceofthesolderjointsbetweencomponentleadsandlandsonasubstratebycyclicbendingofsubstrate.Thistestalsoevaluatestheeffectsofrepeatedmechanicalstress,suchaskeypushingincellphones,thestrengthofthesolderjointbetweencomponentterminalsandlandsonasubstrate.Inthistestmethod,theevaluationrequiresfirsttomountthesurfacemountcomponentonthesubstratebyreflowsoldering,thencyclicallybendthesubstratetoacertaindegreeofdepthuntilfractureofthesolderjointsoccurs.Thepropertiesofthesolderjoints(e.g,solderalloy,substrate,mounteddeviceordesign,etc.)areevaluatedtoassistinimprovingthestrengthofthesolderjoints.
【中国标准分类号】:L10
【国际标准分类号】:31_190
【页数】:18P.;A4
【正文语种】:英语