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【英文标准名称】:StandardTestMethodforBendingFatigueTestingforCopper-AlloySpringMaterials
【原文标准名称】:铜合金弹簧材料弯曲疲劳试验的标准试验方法
【标准号】:ASTMB593-1996(2003)e1
【标准状态】:现行
【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】:B05.06
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:铜;机械试验;疲劳;试验;弯曲试验;合金;弹簧;铜合金;有色金属;材料
【英文主题词】:bendingfatigue;bendingfatiguetesting;copperalloyflatstrip;copperalloyspring;fatiguetesting
【摘要】:Theflexuralfatiguetestdescribedinthistestmethodprovidesinformationontheabilityofacopperalloyflat-springmaterialtoresistthedevelopmentofcracksorgeneralmechanicaldeteriorationasaresultofarelativelylargenumberofcycles(generallyintherange105to108)underconditionsofconstantdisplacement.Thistestmethodisprimarilyaresearchanddevelopmenttoolwhichmaybeusedtodeterminetheeffectofvariationsinmaterialsonfatiguestrengthandalsotoprovidedataforuseinselectingcopperalloyspringmaterialsforserviceunderconditionsofrepeatedstraincycling.Theresultsaresuitablefordirectapplicationindesignonlywhenalldesignfactorssuchasloading,geometryofpart,frequencyofstraining,andenvironmentalconditionsareknown.Thetestmethodisgenerallyunsuitableforaninspectiontestoraqualitycontroltestduetotheamountoftimeandeffortrequiredtocollectthedata.1.1Thistestmethoddescribesproceduresforthedeterminationofthereversedorrepeatedbendingfatiguepropertiesofcopperalloyflat-sheetorstrip-springmaterialsbyfixedcantilever,constantamplitudeofdisplacement-typetestingmachines.Thismethodislimitedtoflatstockranginginthicknessfrom0.005to0.062in.(0.13to1.57mm),toafatigue-liferangeof105to108cycles,andtoconditionswherenosignificantchangeinstress-strainrelationsoccursduringthetest.Note18212;Thisimpliesthattheload-deflectioncharacteristicsofthematerialdonotchangeasafunctionofthenumberofcycleswithintheprecisionofmeasurement.Thereisnosignificantcyclichardeningorsoftening.1.2UnitsThevaluesstatedininch-poundunitsareregardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationpurposesonlyandarenotconsideredstandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:H23;H62
【国际标准分类号】:77_150_30
【页数】:5P.;A4
【正文语种】:


【英文标准名称】:Low-voltageswitchgearandcontrolgearassemblies-Part3:Particularrequirementsforlow-voltageswitchgearandcontrolgearassembliesintendedtobeinstalledinplaceswhereunskilledpersonshaveaccessfortheiruse;Distributionboards;Amendment2
【原文标准名称】:低压开关设备和控制设备组合装置第3部分:用于安装在非熟练人员可能进入使用场所的低压开关设备和控制设备组合装置的特殊要求配电盘修改2
【标准号】:IEC60439-3AMD2-2001
【标准状态】:作废
【国别】:国际
【发布日期】:2001-02
【实施或试行日期】:
【发布单位】:国际电工委员会(IX-IEC)
【起草单位】:IEC/SC17D
【标准类型】:()
【标准水平】:()
【中文主题词】:组合装置;用户设备;冲击强度;分配器;开关设备;扭矩;控制设备;电驱动装置;防电击;电气工程;开关设备成套装置;检验;低电压;组合;作标记;电力设备;电气设备;材料强度;低压开关设备;抗湿;定义;安全工程;低压设备;低压设备;电气安全;危险防护;标志;操纵;安全要求;安装;规范(验收);试验
【英文主题词】:Access;Combination;Compositedevices;Constructionrequirements;Consumerunits;Controlequipment;Corrosion;Definitions;Distributors;Electriccontrolequipment;Electricalappliances;Electricalengineering;Electricalequipment;Electricalinstallations;Electricalsafety;Electrically-operateddevices;Environmentalcondition;Fracture;Handlings;Heat;Impactstrength;Inspection;Installations;Insulatingmaterials;Lowvoltage;Low-voltageequipment;Low-voltageinstallations;Low-voltageswitchgear;Marking;Moistureresistance;Operatingconditions;Organization;Persons;Protectionagainstdanger;Protectionagainstelectricshocks;Routinechecktests;Rust;Safetyengineering;Safetyrequirements;Signs;Specification(approval);Strengthofmaterials;Switchgear;Switchgearassemblies;Temperature;Testing;Torque;Types
【摘要】:ThisstandardisLow-voltageswitchgearandcontrolgearassemblies-Part3:Particularrequirementsforlow-voltageswitchgearandcontrolgearassembliesintendedtobeinstalledinplaceswhereunskilledpersonshaveaccessfortheiruse;Distributionboards;Amendment2.
【中国标准分类号】:K31;K32
【国际标准分类号】:29_130_20
【页数】:13P.;A4
【正文语种】:英语