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【英文标准名称】:StandardGuideforMeasuringPowerFrequencyMagneticPropertiesofFlat-RolledElectricalSteelsUsingSmallSingleSheetTesters
【原文标准名称】:使用小薄板测试器测量扁平轧制电工钢工频磁性能的标准指南
【标准号】:ASTMA1036-2004
【标准状态】:现行
【国别】:
【发布日期】:2004
【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】:A06.01
【标准类型】:(Guide)
【标准水平】:()
【中文主题词】:电工钢;平的;电源频率;磁性能;轧制钢材;小;单;薄板测试器;测量频率;电源磁
【英文主题词】:alternatingcurrent;coreloss;electricalsteel;fluxdensity;magnetic;magneticmaterial;magnetictest;permeability;powerfrequency;sheet
【摘要】:MaterialsEvaluation8212;SmallsinglesheettestersweredevelopedtosupplementthetestingofEpsteinspecimensforvariousapplications.TheyareespeciallyappropriatefordeterminingthemagneticpropertiesofsampleswheninsufficientmaterialisavailableforpreparationofanEpsteinspecimen.Althoughthesmallspecimensizeisattractive,theprecisionofthesmallsheettestersisnotexpectedtobeasgoodasthatofthetestmethodTestMethodA343/A343M.Smallsheettestersarefrequentlyusedtomeasurethepropertiesofbothfullyprocessedandsemiprocessednonorientedandmagneticlaminationsteels.Specimensofsemiprocessedsteelsarenormallysubjectedtoanappropriatequalitydevelopmentannealpriortotesting.Smallsheettestersmayalsobeusedtoevaluateorientedelectricalsteelsineithertheasshearedorstress-reliefannealedcondition.1.1Thisguidecoversproceduresforinterpretingthespecificcorelossandpeakpermeabilitydeterminedusingsmallsingle-sheettestsystems.Itislimitedtosingle-sheettestsystemsthatrequireatestspecimenorcouponbecutfromthematerialbeingtestedandaredesignedsuchthattheentirewidthofthattestspecimenismagnetizedduringtesting.1.2Thisguideisprimarilyintendedformeasurementsofthemagneticpropertiesofflat-rolledelectricalsteelsatfrequenciesof50Hzor60Hzundersinusoidalfluxconditions.1.3Thisguideincludesprocedurestoprovidecorrelationwiththe25-cmEpsteintestmethod(TestMethodA343/A343M).1.4Therangeofmagneticfluxdensitiesisgovernedbythepropertiesofthetestspecimensandtheinstrumentsandtestpowersource.Nonorientedelectricalsteelsmaybetestedatmagneticfluxdensitiesuptoabout16-kG[1.6T]forcoreloss.Themaximummagneticfieldstrengthforpeakpermeabilitytestingislimitedbythecurrentcarryingcapacityofthemagnetizingwindingandthetestpowersource.Singlesheettestersaretypicallycapableoftestingatmagneticfieldstrengthsupto50Oe[4000A/m]ormore.1.5Withinthisguide,asmallsinglesheettester(smallSST)isdefinedasamagnetictesterdesignedtotestflat,rectangularsheet-typespecimens.Typicalspecimensforthesetestersaresquare(ornearlyso).ThedesignofthesmallSSTtestfixturemaybesmallenoughtoaccommodatespecimensabout5by5cmormaybelargeenoughtoaccommodatespecimensabout36by36cm.SpecimensforaparticularSSTmustbeappropriatefortheparticulartestfixture.1.6Thisguidecoverstwoalternativetestmethods:Method1andMethod2.1.6.1Method1isanextensionofMethod1ofTestMethodA804/A804M,whichdescribesatestfixturehavingtwowindingsthatencirclethetestspecimenandtwolow-reluctance,low-corelossferromagneticyokesthatserveasfluxreturnpaths.ThedimensionsofthetestfixtureforMethod1arenotfixedbutrathermaybedesignedandbuiltforanynominalspecimendimensionwithinthelimitsgivenin.Thepowerlossinthiscaseisdeterminedbymeasuringtheaveragevalueoftheproductofprimarycurrentandinducedsecondaryvoltage.1.6.2Method2coverstheuseofasmallsinglesheettester,whichemploysamagnetizingwinding,amagneticfluxsensingwinding,andamagneticfieldstrengthdetector.Thepowerlossinthiscaseisdeterminedbymeasuringtheaveragevalueoftheproductofinducedsecondaryvoltageandmagneticfieldstrength.1.6.3ThecalibrationmethoddescribedintheAnnexofthisguideappliestobothtestmethods.1.7Thevaluesandequationsstatedincustomary(cgs-emuandinch-pound)orSIunitsaretoberegardedseparatelyasstandard.Withinthisstandard,SIunitsareshowninbrackets.Thevaluesstatedineachsystemmaynotbeexactequivalents;therefore,eac......
【中国标准分类号】:H53
【国际标准分类号】:29_030
【页数】:5P.;A4
【正文语种】: