MIL-R-11539B

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MIL-R-11539B, MILITARY SPECIFICATION: RADIO SETS, (NON-TACTICAL RADIO EQUIPMENT) (COMPONENTS OF) (07 NOV 1958) [NO S/S DOCUMENT]., This specification covers the following major components of non-tactical radio equipments operating in the frequency range of 25 to 50 mc and 152 to 174 mc.
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基本信息
标准名称:圆度、圆柱度测量仪
英文名称:Rounaness Measuring Instrument
中标分类: 综合 >> 计量 >> 长度计量
替代情况:JJG 429-1986
发布部门:国家质量技术监督局
发布日期:2000-08-28
实施日期:2000-12-01
首发日期:1900-01-01
作废日期:1900-01-01
归口单位:全国几何量工程参量计量技术委员会
起草单位:哈尔滨工业大学、中国计量科学研究院等
起草人:谭久彬、赵维谦等
出版社:中国计量出版社
出版日期:2004-04-19
页数:27页
书号:155026-1183
适用范围

本规程适用于圆度、圆柱度测量仪的首次检定、后续检定和使用中的检验。

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引用标准

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所属分类: 综合 计量 长度计量
【英文标准名称】:StandardTestMethodsandDefinitionsforMechanicalTestingofSteelProducts
【原文标准名称】:钢制品机械试验的标准试验方法和定义
【标准号】:ASTMA370-2009ae1
【标准状态】:现行
【国别】:
【发布日期】:2009
【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】:A01.13
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:弯曲试验;延伸率;脆性转变温度;硬度试验;便携式硬度计;断面收缩率;拉伸强度;拉伸试验;屈服强度;钢阀门;钢丝;温度试验.金属/合金;拉伸属性/试验.钢;薄片钢;屈服强度和屈服点;钢管;弯曲试验.金属材料;布氏硬度;沙尔皮冲击试验;延伸率.机械材料;铸件;发电机材料;硬度(压痕).金属材料;抗冲击力;冲击试验.强度;机械分析/试验;钢制压力容器;铁路钢材料;洛氏硬度;七线钢丝索(键);造船钢材料.规范;钢;钢棒;钢制螺栓材料;钢链;钢片;钢片/带;钢片/带/板
【英文主题词】:bendtest;Brinellhardness;Charpyimpacttest;elongation;FATT(FractureAppearanceTransitionTemperature);hardnesstest;portablehardness;reductionofarea;Rockwellhardness;tensilestrength;tensiontest;yieldstrength;Steelvalves;Steelwire;Temperaturetests--metals/alloys;Tensileproperties/testing--steel;Tinmillproducts;Yieldstrengthandyieldpoint;Steeltube;Bendtesting--metallicmaterials;Brinellhardness;Charpyimpacttest;Elongation--metallicmaterials;Forgings;Fractureappearancetransitiontemperature(FATT);Generatormaterials;Hardness(indentation)--metallicmaterials;Impactresistance;Impacttesting--Charpy;Mechanicalanalysis/testing;Pressurevesselsteel;Railroadsteelmaterials;Rockwellhardness;Seven-wirestrand(tendon);Shipbuildingsteelmaterials--specifications;Steel;Steelbars;Steelboltingmaterials;Steelchain;Steelpipe;Steelsheet;Steelsheet/strip;Steelsheet/strip/plate
【摘要】:Ductilevs.BrittleBehavior8212;Body-centered-cubicorferriticalloysexhibitasignificanttransitioninbehaviorwhenimpacttestedoverarangeoftemperatures.Attemperaturesabovetransition,impactspecimensfracturebyaductile(usuallymicrovoidcoalescence)mechanism,absorbingrelativelylargeamountsofenergy.Atlowertemperatures,theyfractureinabrittle(usuallycleavage)mannerabsorbingappreciablylessenergy.Withinthetransitionrange,thefracturewillgenerallybeamixtureofareasofductilefractureandbrittlefracture.Thetemperaturerangeofthetransitionfromonetypeofbehaviortotheothervariesaccordingtothematerialbeingtested.Thistransitionbehaviormaybedefinedinvariouswaysforspecificationpurposes.Thespecificationmayrequireaminimumtestresultforabsorbedenergy,fractureappearance,lateralexpansion,oracombinationthereof,ataspecifiedtesttemperature.Thespecificationmayrequirethedeterminationofthetransitiontemperatureatwhicheithertheabsorbedenergyorfractureappearanceattainsaspecifiedlevelwhentestingisperformedoverarangeoftemperatures.Alternativelythespecificationmayrequirethedeterminationofthefracture1.1Thesetestmethodscoverproceduresanddefinitionsforthemechanicaltestingofsteels,stainlesssteels,andrelatedalloys.Thevariousmechanicaltestshereindescribedareusedtodeterminepropertiesrequiredintheproductspecifications.Variationsintestingmethodsaretobeavoided,andstandardmethodsoftestingaretobefollowedtoobtainreproducibleandcomparableresults.Inthosecasesinwhichthetestingrequirementsforcertainproductsareuniqueoratvariancewiththesegeneralprocedures,theproductspecificationtestingrequirementsshallcontrol.1.2Thefollowingmechanicaltestsaredescribed:
Sections
Tension
5to13
Bend
14
Hardness
15
Brinell
16
Rockwell
17