【英文标准名称】:Metallicmaterials-Charpypendulumimpacttest-Part2:Verificationoftestingmachines
【原文标准名称】:金属材料.摆锤式冲击试验.第2部分:测试机的鉴定
【标准号】:ISO148-2-2008
【标准状态】:现行
【国别】:国际
【发布日期】:2008-12
【实施或试行日期】:
【发布单位】:国际标准化组织(IX-ISO)
【起草单位】:ISO/TC164
【标准类型】:()
【标准水平】:()
【中文主题词】:弯曲测试;特性记述;却贝(摆式冲击试验);摆式冲击试验;定义;冲击试验机;冲击试验;装配;材料试验机;材料试验;材料;机械测试;金属的;金属材料;金属;切口试棒冲击弯曲试验;摆式冲击试验机;摆锤式冲击试验机;准备;参考装置;参考材料;参考方法;钢;符号;试验设备;试样;测试;验证
【英文主题词】:Bendtesting;Characterisations;Charpy;Charpyimpacttests;Definition;Definitions;Impacttesting;Impacttestingmachines;Impacttests;Installation;Materialtestingmachines;Materialtests;Materials;Materialstesting;Mechanicaltesting;Metallic;Metallicmaterials;Metals;Notched-barimpactbendingtests;Pendulumimpacttester;Pendulumimpacttestingmachines;Preparation;Referencedevices;Referencematerials;Referencemethods;Steels;Symbols;Testequipment;Testspecimens;Testing;Verification
【摘要】:ThispartofISO148coverstheverificationoftheconstructionalelementsofpendulum-typeimpacttestingmachines.Itisapplicabletomachineswith2mmor8mmstrikersusedforpendulumimpacttestscarriedout,forinstance,inaccordancewithISO148-1.Itcananalogouslybeappliedtopendulumimpacttestingmachinesofvariouscapacitiesandofdifferentdesign.Impactmachinesusedforindustrial,generalorresearchlaboratorytestingofmetallicmaterialsinaccordancewiththispartofISO148arereferredtoasindustrialmachines.Thosewithmorestringentrequirementsarereferredtoasreferencemachines.SpecificationsfortheverificationofreferencemachinesarefoundinISO148-3.ThispartofISO148describestwomethodsofverification.a)Thedirectmethod,whichisstaticinnature,involvesmeasurementofthecriticalpartsofthemachinetoensurethatitmeetstherequirementsofthispartofISO148.Instrumentsusedfortheverificationandcalibrationaretraceabletonationalstandards.Directmethodsareusedwhenamachineisbeinginstalledorrepaired,oriftheindirectmethodgivesanon-conformingresult.b)Theindirectmethod,whichisdynamicinnature,usesreferencetestpiecestoverifypointsonthemeasuringscale.ApendulumimpacttestingmachineisnotincompliancewiththispartofISO148untilithasbeenverifiedbyboththedirectandindirectmethodsandmeetstherequirementsofClauses6and7.TherequirementsforthereferencetestpiecesarefoundinISO148-3.ThispartofISO148takesintoaccountthetotalenergyabsorbedinfracturingthetestpieceusinganindirectmethod.Thistotalabsorbedenergyconsistsof-theenergyneededtobreakthetestpieceitself,and-theinternalenergylossesofthependulumimpacttestingmachineperformingthefirsthalf-cycleswingfromtheinitialposition.
【中国标准分类号】:H22
【国际标准分类号】:77_040_10
【页数】:38P;A4
【正文语种】:英语


Product Code:SAE MA3427
Title:Nut, Castellated, Hex - Thin, UNS G87400, Cadmium Plate, MJ Thread, Metric (NONCURRENT Nov 1996)
Issuing Committee:E-25 General Standards For Aerospace And Propulsion Systems
Scope:No scope available.