SAE AMS4118 Aluminum Alloy, Rolled or Cold Finished Bars, Rods, and Wire, 4.0Cu - 0.70Mn - 0.60Mg - 0.50Si, (2017; -T4,
时间:2024-05-12 22:03:29 来源: 标准资料网 作者：标准资料网 阅读：9203
Product Code:SAE AMS4118
Title:Aluminum Alloy, Rolled or Cold Finished Bars, Rods, and Wire, 4.0Cu - 0.70Mn - 0.60Mg - 0.50Si, (2017; -T4, -T451), Solution Heat Treated
Issuing Committee:Ams D Nonferrous Alloys Committee
Scope:This specification covers an aluminum alloy in the form of bars, rods, and wire.These products have been used typically for parts requiring good strength and whose fabrication does not involve welding, but usage is not limited to such applications.
【英文标准名称】:Cranes-Vocabulary-Part2:mobilecranes.
【原文标准名称】:起重机.词汇.第2部分:移动式起重机
【标准号】:NFE52-073-2-2000
【标准状态】:作废
【国别】:法国
【发布日期】:2000-02-01
【实施或试行日期】:2000-02-05
【发布单位】:法国标准化协会(FR-AFNOR)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:定义;可移动的;词汇;起重机;移动起重机;提升设备;车载起重机;提升机;设备
【英文主题词】:Cranes;Definition;Definitions;Equipment;Hoists;Liftingequipment;Mobilecranes;Transportable;Vehiclemountedcranes;Vocabulary
【摘要】:
【中国标准分类号】:J80
【国际标准分类号】:01_040_53;53_020_20
【页数】:18P.;A4
【正文语种】:其他
【英文标准名称】:Semiconductordevices-Mechanicalandclimatictestmethods-Powercycling
【原文标准名称】:半导体器件.机械和气候试验方法.动力循环
【标准号】:BSEN60749-34-2004
【标准状态】:作废
【国别】:英国
【发布日期】:2004-06-22
【实施或试行日期】:2004-06-22
【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】:气候试验;试验条件;电子工程;电学测量;半导体器件;电子设备及元件;半导体;组件;电气工程;耐力;试验;定义;集成电路;机械试验;环境试验;负载改变
【英文主题词】:Climatictests;Components;Definition;Definitions;Electricalengineering;Electricalmeasurement;Electronicengineering;Electronicequipmentandcomponents;Environmentaltesting;Failure;Integratedcircuits;Loadalternation;Mechanicaltesting;Powerelectronics;Resistance;Semiconductordevices;Semiconductors;Simulation;Testing;Testingconditions
【摘要】:Thistestmethodisusedtodeterminetheresistanceofasemiconductordevicetothermalandmechanicalstressesduetocyclingthepowerdissipationoftheinternalsemiconductordieandinternalconnectors.Thishappenswhenlow-voltageoperatingbiasesforforwardconduction(loadcurrents)areperiodicallyappliedandremovedcausingrapidchangesoftemperature.Thepowercyclingtestisintendedtosimulatetypicalapplicationsinpowerelectronicsandiscomplementarytohightemperatureoperatinglife(seeIEC60749-23).Exposuretothistestmaynotinducethesamefailuremechanismsasexposuretoair-to-airtemperaturecycling,ortorapidchangeoftemperatureusingthetwo-fluid-bathsmethod.Thistestcauseswear-outandisconsidereddestructive.NOTEItisnottheintentionofthisspecificationtoprovidepredictionmodelsforlifetimeevaluation.
【中国标准分类号】:L40
【国际标准分类号】:31_080_01
【页数】:12P.;A4
【正文语种】:英语