ASTM A341/A341M-2000(2005)e1 用直流磁导计和冲击试验法测定材料的直流磁性能的标准试验方法
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【英文标准名称】:StandardTestMethodforDirectCurrentMagneticPropertiesofMaterialsUsingD-CPermeametersandtheBallisticTestMethods
【原文标准名称】:用直流磁导计和冲击试验法测定材料的直流磁性能的标准试验方法
【标准号】:ASTMA341/A341M-2000(2005)e1
【标准状态】:现行
【国别】:美国
【发布日期】:2000
【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】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:coerciveforce;induction;magneticfieldstrength;magnetictest;permeability;permeameter;residualinduction;Ballistictest;Coerciveforce;D-cmagneticproperties;Direct-currentballisticmethods;Direct-currentpermeability;Hysteresiseffects;I
【摘要】:Permeametersrequiretheuseofyokestocompletethemagneticcircuitandarethereforeinherentlylessaccuratethanringtestmethods.RefertoTestMethodA596/A596Mforfurtherdetailsonringtestmethods.However,whentestingcertainshapesasbarsorwhenmagneticfieldstrengthinexcessof200Oe[15.9ormorekA/m]arerequired,permeametersaretheonlypracticalmeansofmeasuringmagneticproperties.Thistestmethodissuitableforspecificationacceptance,serviceevaluation,researchanddevelopmentanddesign.Whenthetestspecimenisfabricatedfromalargersampleandisinthesameconditionasthelargersample,itmaynotexhibitmagneticpropertiesrepresentativeoftheoriginalsample.Insuchinstancesthetestresults,whenviewedincontextofpastperformancehistory,willbeusefulforjudgingthesuitabilityofthematerialfortheintendedapplication.1.1Thistestmethodprovidesdcpermeametertestsforthebasicmagneticpropertiesofmaterialsintheformofbars,rods,wire,orstripspecimenswhichmaybecut,machined,orgroundfromcast,compacted,sintered,forged,extruded,rolled,orotherfabricatedmaterials.Itincludestestsfordeterminationofthenormalinductionundersymmetricallycyclicallymagnetized(SCM)conditionsandthehysteresisloop(B-Hloop)takenunderconditionsofrapidlychangingorsteepwavefrontreversalsofthedirectcurrentmagneticfieldstrength.1.2ThistestmethodshallbeusedinconjunctionwithPracticeA34/A34M.1.3Thistestmethodcoversarangeofmagneticfieldstrengthinthespecimenfromabout0.05Oe[4A/m]uptoabove5000Oe[400kA/M]throughtheuseofseveralpermeameters.Theseparatepermeameterscoverthistestregioninseveraloverlappingranges.1.4Normalinductionandhysteresispropertiesmaybedeterminedoverthefluxdensityrangefromessentiallyzerotointrinsicsaturationformostmaterials.1.5RecommendationsoftheusefulmagneticfieldstrengthrangeforeachofthepermeametersareshowninTable1.Also,seeSections3and4forgenerallimitationsrelativetotheuseofpermeameters.1.6ThesymbolsandabbreviateddefinitionsusedinthistestmethodappearwithFig.1andinappropriatesectionsofthisdocument.Fortheofficialdefinitions,seeTerminologyA340.Notethatthetermfluxdensityusedinthisdocumentissynonymouswiththetermmagneticinduction.1.7Warningx2014;MercuryhasbeendesignatedbyEPAandmanystateagenciesasahazardousmaterialthatcancausecentralnervoussystem,kidney,andliverdamage.Mercury,oritsvapor,maybehazardoustohealthandcorrosivetomaterials.Cautionshouldbetakenwhenhandlingmercuryandmercury-containingproducts.SeetheapplicableproductMaterialSafetyDataSheet(MSDS)fordetailsandEPAx2019;swebsite(http://www.epa.gov/mercury/faq.htm)foradditionalinformation.Usersshouldbeawarethatsellingmercuryormercury-containingproducts,orboth,inyourstatemaybeprohibitedbystatelaw.1.8Thevaluesandequationsstatedincustomarycgs-emuandinch-poundorSIunitsaretoberegardedseparatelyasstandard.Withinthisstandard,SIunitsareshowninbracketsexceptforthesectionsconcerningcalculationswherethereareseparatesectionsfortherespectiveunitsystems.Thevaluesstatedineachsystemmaynotbeexactequivalents;therefore,eachsystemshallbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnonconformancewiththisstandard.1.9Thisstandarddoesnotpurportt......
【中国标准分类号】:H21
【国际标准分类号】:29_030
【页数】:13P.;A4
【正文语种】:英语
【原文标准名称】:用直流磁导计和冲击试验法测定材料的直流磁性能的标准试验方法
【标准号】:ASTMA341/A341M-2000(2005)e1
【标准状态】:现行
【国别】:美国
【发布日期】:2000
【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】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:coerciveforce;induction;magneticfieldstrength;magnetictest;permeability;permeameter;residualinduction;Ballistictest;Coerciveforce;D-cmagneticproperties;Direct-currentballisticmethods;Direct-currentpermeability;Hysteresiseffects;I
【摘要】:Permeametersrequiretheuseofyokestocompletethemagneticcircuitandarethereforeinherentlylessaccuratethanringtestmethods.RefertoTestMethodA596/A596Mforfurtherdetailsonringtestmethods.However,whentestingcertainshapesasbarsorwhenmagneticfieldstrengthinexcessof200Oe[15.9ormorekA/m]arerequired,permeametersaretheonlypracticalmeansofmeasuringmagneticproperties.Thistestmethodissuitableforspecificationacceptance,serviceevaluation,researchanddevelopmentanddesign.Whenthetestspecimenisfabricatedfromalargersampleandisinthesameconditionasthelargersample,itmaynotexhibitmagneticpropertiesrepresentativeoftheoriginalsample.Insuchinstancesthetestresults,whenviewedincontextofpastperformancehistory,willbeusefulforjudgingthesuitabilityofthematerialfortheintendedapplication.1.1Thistestmethodprovidesdcpermeametertestsforthebasicmagneticpropertiesofmaterialsintheformofbars,rods,wire,orstripspecimenswhichmaybecut,machined,orgroundfromcast,compacted,sintered,forged,extruded,rolled,orotherfabricatedmaterials.Itincludestestsfordeterminationofthenormalinductionundersymmetricallycyclicallymagnetized(SCM)conditionsandthehysteresisloop(B-Hloop)takenunderconditionsofrapidlychangingorsteepwavefrontreversalsofthedirectcurrentmagneticfieldstrength.1.2ThistestmethodshallbeusedinconjunctionwithPracticeA34/A34M.1.3Thistestmethodcoversarangeofmagneticfieldstrengthinthespecimenfromabout0.05Oe[4A/m]uptoabove5000Oe[400kA/M]throughtheuseofseveralpermeameters.Theseparatepermeameterscoverthistestregioninseveraloverlappingranges.1.4Normalinductionandhysteresispropertiesmaybedeterminedoverthefluxdensityrangefromessentiallyzerotointrinsicsaturationformostmaterials.1.5RecommendationsoftheusefulmagneticfieldstrengthrangeforeachofthepermeametersareshowninTable1.Also,seeSections3and4forgenerallimitationsrelativetotheuseofpermeameters.1.6ThesymbolsandabbreviateddefinitionsusedinthistestmethodappearwithFig.1andinappropriatesectionsofthisdocument.Fortheofficialdefinitions,seeTerminologyA340.Notethatthetermfluxdensityusedinthisdocumentissynonymouswiththetermmagneticinduction.1.7Warningx2014;MercuryhasbeendesignatedbyEPAandmanystateagenciesasahazardousmaterialthatcancausecentralnervoussystem,kidney,andliverdamage.Mercury,oritsvapor,maybehazardoustohealthandcorrosivetomaterials.Cautionshouldbetakenwhenhandlingmercuryandmercury-containingproducts.SeetheapplicableproductMaterialSafetyDataSheet(MSDS)fordetailsandEPAx2019;swebsite(http://www.epa.gov/mercury/faq.htm)foradditionalinformation.Usersshouldbeawarethatsellingmercuryormercury-containingproducts,orboth,inyourstatemaybeprohibitedbystatelaw.1.8Thevaluesandequationsstatedincustomarycgs-emuandinch-poundorSIunitsaretoberegardedseparatelyasstandard.Withinthisstandard,SIunitsareshowninbracketsexceptforthesectionsconcerningcalculationswherethereareseparatesectionsfortherespectiveunitsystems.Thevaluesstatedineachsystemmaynotbeexactequivalents;therefore,eachsystemshallbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnonconformancewiththisstandard.1.9Thisstandarddoesnotpurportt......
【中国标准分类号】:H21
【国际标准分类号】:29_030
【页数】:13P.;A4
【正文语种】:英语
下载地址: 点击此处下载
