1、BRITISH STANDARD BS EN 10331:2003 Magnetic materials Specification for sintered soft magnetic materials The European Standard EN 10331:2003 has the status of a British Standard ICS 29.030 BS EN 10331:2003 This British Standard was published under the authority of the Standards Policy and Strategy Co
2、mmittee on 2 May 2003 BSI 2 May 2003 ISBN 0 580 41786 7 National foreword This British Standard is the official English language version of EN 10331:2003. It supersedes BS 6404-8.9:1995 which is withdrawn. The UK participation in its preparation was entrusted to Technical Committee ISE/NFE/5, Magnet
3、ic alloys and steels, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI
4、 Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for i
5、ts correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK intere
6、sts informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 9 and a back cover. The BSI copyright date displayed in this document indicates when the d
7、ocument was last issued. Amendments issued since publication Amd. No. Date CommentsEUROPEANSTANDARD NORMEEUROPENNE EUROPISCHENORM EN10331 April2003 ICS29.030 Englishversion MagneticmaterialsSpecificationforsinteredsoftmagnetic materials MatriauxmagntiquesSpcificationdesmatriaux magntiquesdouxfritts
8、MagnetischeWerkstoffeAnforderungenan weichmagnetischeSintermetalle ThisEuropeanStandardwasapprovedbyCENon21February2003. CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEurope an Standardthestatusofanationalstandardwithoutanyalteration.Uptodatel
9、istsandbibliographicalreferencesconcernings uchnational standardsmaybeobtainedonapplicationtotheManagementCentreortoanyCENmember. ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).Aversioninanyotherlanguagemadebytra nslation undertheresponsibilityofaCENmemberintoitsownlanguage
10、andnotifiedtotheManagementCentrehasthesamestatusasthe official versions. CENmembersarethenationalstandardsbodiesofAustria,Belgium,CzechRepublic,Denmark,Finland,France,Germany,Greece, Hungary,Iceland,Ireland,Italy,Luxembourg,Malta,Netherlands,Norway,Portugal,Slovakia,Spain,Sweden,SwitzerlandandUn ite
11、d Kingdom. EUROPEANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG ManagementCentre:ruedeStassart,36B1050Brussels 2003CEN Allrightsofexploitationinanyformandbyanymeansreserved worldwideforCENnationalMembers. Ref.No.EN10331:2003EEN10331:2003(E) 2 Contents page Fore
12、word3 1 Scope 4 2 Normativereferences 4 3 Termsanddefinitions. .4 4 Symbols 5 5 Generalrequirements 5 5.1 Manufacturingprocess . 5 5.2 Stateofdelivery . 5 5.3 Properties .5 5.4 Chemicalcomposition .5 5.5 Dimensions.5 6 Measurements5 6.1 Scopeoftestandsampling 5 6.2 Determinationofmagneticproperties
13、.6 6.3 Determinationofdensity .6 6.4 Determinationofhardness . 6 7 Classification6 8 Designation.6 9 Orderinginformation .6 Bibliography 9EN10331:2003(E) 3 Foreword Thisdocument(EN10331:2003)hasbeenpreparedbyTechnicalCommitteeECISS/TC24,“Electricalsteelsheet andstripqualitiesQualitiesdimensions,tole
14、rancesandspecifictests“,thesecretariatofwhichisheldbyDIN. ThisEuropeanStandardshallbegiventhestatusofanationalstandard,eitherbypublicationofanidenticaltextor byendorsement,atthelatestbyOctober2003,andconflictingnationalstandardsshallbewithdrawnatthelatest byOctober2003. ThisdocumentisequivalenttoIEC
15、6040489. AccordingtotheCEN/CENELECInternalRegulations,thenationalstandardsorganizationsofthefollowing countriesareboundtoimplementthisEuropeanStandard:Austria,Belgium,CzechRe public,Denmark,Finland, France,Germany,Greece,Hungary,Iceland,Ireland,Italy,Luxembourg,Malta,Netherlands,Norway,Portugal, Slo
16、vakia,Spain,Sweden,SwitzerlandandtheUnitedKingdom.EN10331:2003(E) 4 1Scope ThisEuropeanStandardspecifiessomemagneticandmechanicalpropertiesofsinteredsoftmagneticmetals whichareusedforcomponentsmadebyapowdermetallurgicalprocessonly. Thisstandarddoesnotapplytomagneticallysoftcastingsortosemifinishedpr
17、oducts. 2 Normativereferences ThisEuropeanStandardincorporatesbydatedorundatedreference,provisionsfromotherpublications.These normativereferencesarecitedattheappropriateplacesinthetext,andthepublicationsarelistedhereafter.For datedreferences,subsequentamendmentstoorrevisionsofanyofthesepublicationsa
18、pplytothisEuropean Standardonlywhenincorporatedinitbyamendmentorrevision.Forundatedreferencesthelatesteditionofthe publicationreferredtoapplies(includingamendments). prEN10281, MagneticmaterialsMethodsofmeasurementofthemagneticpropertiesofisotropicnickelironsoft magneticalloys,typesE1,E3andE4 . EN24
19、4981,Sinteredmetalmaterials,excludinghardmetalsDeterminationofapparenthardnessPart1: Materialsofessentiallyuniformsectionhardness(ISO44981:1990) IEC60050121:1998, InternationalElectrotechnicalVocabulary(IEV)Chapter121:Electromagnetism. IEC60050221:1990,InternationalElectrotechnicalVocabulary(IEV)Cha
20、pter221:Magneticmaterialsand components. ENISO2738, Sinteredmetalmaterials,excludinghardmetalsPermeablesinteredmetalmaterials Determinationofdensity,oilcontentandopenporosity(ISO2738:1999) . ISO3369, ImpermeablesinteredmetalmaterialsandhardmetalsDeterminationofdensity . ISO44982, Sinteredmetalmateri
21、als,excludinghardmetalsDeterminationofapparenthardnessPart2:Case hardenedferrousmaterials,surfaceenrichedbycarbonorcarbonandnitrogen ISO5755, SinteredmetalmaterialsSpecifications . 3 Termsanddefinitions ForthepurposesofthisEuropeanStandard,thetermsanddefinitionsgiveninIEC60050121:1998andIEC 60050221
22、:1990,andthefollowingapply: 3.1 sintereddensity, rr s quotientofmass mandvolume Vofthesinteredstructuralpart(includingpores): V m s = (1) NOTE Thesintereddensity r s,giveninequation(1)ingrammespercubiccentimetres,iscalculatedfrom mingrammes and Vincubiccentimetres. 3.2 porosity, P s contentofporesre
23、lativetothetotalvolumeofthepartinvolumepercent NOTE1 Porosityofthesinteredmetalwiththesintereddensityiscalculatedasfollows: % 100 ) / 1 ( s s - = r r P (2)EN10331:2003(E) 5 Where r isthedensityofthesolid(theoreticaldensity)ofthesamecomposition. NOTE2 Theporosity Psofasinteredmetalconsistsofopen,inte
24、rconnectedandclosedpores.Inthecaseofhighsintered densities(correspondingtoaporosityofapproximately6%)isolated(closed)poresbecomepredominant. 4Symbols Forthepurposesofthisstandard,thefollowingsymbolsapply: H Magneticfieldstrength; J Magneticpolarization; P s Porosity; r s Sintereddensity. 5 Generalre
25、quirements 5.1Manufacturingprocess Themagneticallysoftstructuralpartsdefinedbythisstandardaremanufacturedbyapowdermetallurgical process.Unlessotherwiseagreed,themanufacturingprocessislefttothediscretionofthemanufacturer. 5.2Stateofdelivery Unlessotherwiseagreed,theproductsaredeliveredinthefinallyann
26、ealedstate. 5.3Properties ThemaximumvaluesofcoercivityandtheminimumvaluesofsintereddensityshallbeasgiveninTable1.Table2 includestypicalvaluesforadditionalproperties. Valuesoftheotherpropertiesofcomponents,suchasmechanicalstrengthandsurfacefinish(includingprotection againstcorrosion),canbeagreeduponb
27、etweenmanufacturerandpurchaser. 5.4Chemicalcomposition DatarelatingtothetypicalcontentofcharacteristicalloyingelementsofsinteredmetalsaregiveninTable2.The valuesofchemicalcompositionarenotspecifiedforacceptance. 5.5Dimensions Thepermissibledimensionalvaluesofcomponentsandtheirtolerancesformanintegra
28、lpartoftheagreement betweenmanufacturerandpurchaser. 6Measurements 6.1Scopeoftestandsampling Forthepurposeofdeliverythescopeoftestsandthemethodofsamplingtoverifythepropertiesshallbeagreed whentheorderisplaced.EN10331:2003(E) 6 6.2Determinationofmagneticproperties 6.2.1General Itshallbeensuredthatspe
29、cimenisinthefinallyannealedstateandnotinthecoldworkedstate.Thevaluesgiven inthisstandardarespecifiedforringshapedsamples. Magneticpropertiesmeasuredoncomponentsmaybedifferentduetogeometryortotestmethod. NOTE Ifrequiredthesepropertiesmaybesubjecttoagreementbetweenmanufacturerandpurchaser. 6.2.2 Metho
30、dforthedeterminationofcoercivity CoercivityasspecifiedinTable1shallbemeasuredinaccordancewithprEN10281.EN10330maybeusedfor othershapes. 6.2.3 Methodforthedeterminationofmagneticpolarization ThetypicalvaluesasgiveninTable2havebeendeterminedonringshapedsamples.Othersamples(forexample stripsorrods)mayl
31、eadtodifferentresults. ThetestmethodisdescribedinprEN10281. 6.3Determinationofdensity Forthedeterminationofdensity,thecomponentsshallbeweighedandtheirvolumedeterminedonthebasisof geometricdimensionsorbymeansoftheimmersionmethodinaccordancewithENISO2738orISO3369. 6.4Determinationofhardness Hardnessof
32、thecomponents,asgiveninTable2,isdeterminedaccordingtotheVickersmethodinaccordance withEN244981andISO44982.TheBrinellmethodinaccordancewithENISO65061mayalsobeused. 7Classification Thematerialscoveredbythisstandardareclassifiedaccordingtothemaximumvalueoftheircoercivity. 8Designation Theconventionalde
33、signationofthedifferentgradescomprisesthefollowingintheordergiven: 1) theidentificationletterS(sinteredmetal); 2) adash; 3) letterscharacterisingthealloyingelements(Fe=plainiron,FeP=phosphorousironalloys,FeSi=silicon ironalloys,FeNi=nickelironalloys,FeCo=cobaltironalloys); 4) acodenumberequaltothema
34、ximumvalueofcoercivity,correspondingtoTable1.InthisTable, referenceisalsomadetocorrespondingmaterialdefinedinISO5755. 9 Orderinginformation Formaterialstocomplyadequatelywiththerequirementsofthisstandard,thepurchasershallincludethefollowing informationinhisenquiryororder:EN10331:2003(E) 7 a) natureo
35、ftheproductandthedesignationofthematerialinaccordancewithclause8; b) whereapplicable,itsdimensions(see5.5); c) quantityrequired; d) scopeoftestsandmethodofsampling(see6.1); e) followingadditionalrequirementsshallbespecifiedatthetimeofenquiryandorder.Ifnothingisspecifiedthe manufacturershallassumetha
36、ttherearenoparticularrequirementsonthesepoints: otherproperties(see5.3); othershapesoftestspecimen(see6.2); othermethodsoftest(see6.2.3). Table1Minimumsintereddensitiesandmaximumcoercivities Material symbolic designation Material designation accordingto ISO5755 Density rr s g/cm 3 min. Coercivity H
37、c A/m max. SFe175 P1024Z 6,4 175 SFe170 P1025Z 6,8 170 SFe165 7,1 165 SFe150 a 7,3 150 SFeP150 6,8 150 SFeP130 7,1 130 SFeP110 a 7,3 110 SFeSi80 7,2 80 SFeSi50 7,4 50 SFeNi20 7,6 20 SFeNi15 7,9 15 SFeNi8 8,3 8 SFeCo100 7,7 100 SFeCo200 7,7 200 a Withspecialprecautionsintheprocessingalowercoercivityi
38、spossible: 100A/mforSFe150and60A/mforSFeP110.EN10331:2003(E) 8 Table2Typicalvaluesforthepropertiesofsoftmagneticsinteredmaterialsinthefinallyannealedstate a Magneticpolarization J (T) atafieldstrength H(A/m)of Material designation Characteristicalloying elements (exceptFe) %bymass Sintered density s
39、 g/cm 3 Porosity Ps % 500 5000 15000 80000 b Maximum permeability max. Vickers hardness HV5 Resistivity r SFe175 6,6 16 0,70 1,10 1,40 1,55 2000 50 0,15 SFe170 7,0 11 0,90 1,25 1,45 1,65 2600 60 0,13 SFe165 7,2 9 1,10 1,40 1,55 1,75 3000 70 0,12 SFe150 c 7,4 6 1,30 1,55 1,70 1,85 5500 70 0,12 SFeP15
40、0 approx 0,45%P 7,0 10 1,05 1,30 1,50 1,65 3400 95 0,20 SFeP130 0,45%P 7,2 8 1,20 1,45 1,60 1,75 4000 105 0,19 SFeP110 c 0,45%P 7,4 5 1,35 1,60 1,75 1,85 6900 100 0,18 SFeSi80 approx 3,0%Si 7,3 4 1,35 1,55 1,70 1,85 8000 170 0,45 SFeSi50 3,0%Si 7,5 2 1,40 1,65 1,70 1,95 9500 180 0,45 SFeNi20 approx
41、50%Ni 7,7 7 1,10 1,25 1,30 1,30 20000 70 0,50 SFeNi15 50%Ni 8,0 4 1,30 1,50 1,55 1,55 30000 85 0,45 SFeNi8 approx 80%Ni+Mo 8,4 3 0,75 d 0,80 0,80 0,80 74500 95 0,60 SFeCo200 approx 50%Co 7,8 3 1,55 2,05 2,15 2,20 3900 240 0,35 SFeCo100 50%Co 7,8 3 1,50 2,00 2,10 2,15 2000 190 0,10 a Someofthesecompo
42、sitionsarealsoavailableinresinbondedcomponents,whichwithreducedmagneticproperties,butalsowith reducedlosses,areusedinhighfrequencyapplications. b Magneticpolarizationatafieldof80000A/mcorrespondstothesaturationmagneticpolarization. c Byspecialprecautionsinprocessing,lowervaluesforthecoercivityarepos
43、sible. d MagneticpolarizationforSFeNi8atafieldstrengthof40A/mis0,55T.EN10331:2003(E) 9 Bibliography EN10330, MagneticmaterialsMethodofmeasurementofthecoercivityofmagneticmaterialsinanopencircuit . ENISO65061, MetallicmaterialsBrinellHardnesstestPart1:Testmethod(ISO65061:1999) . IEC604044, Magneticma
44、terialsPart4:Methodsofmeasurementofd.c.magneticpropertiesofironandsteel.BS EN 10331:2003 BSI 389 Chiswick High Road London W4 4AL BSI British Standards Institution BSI is the independent national body responsible for preparing British Standards. It presents the UK view on standards in Europe and at the international lev
