1、 IEC 60404-5 Edition 3.0 2015-04 INTERNATIONAL STANDARD NORME INTERNATIONALE Magnetic materials Part 5: Permanent magnet (magnetically hard) materials Methods of measurement of magnetic properties Matriaux magntiques Partie 5: Aimants permanents (magntiques durs) Mthodes de mesure des proprits magnt
2、iques IEC 60404-5:2015-04(en-fr) THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2015 IEC, Geneva, Switzerland All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying an
3、d microfilm, without permission in writing from either IEC or IECs member National Committee in the country of the requester. If you have any questions about IEC copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or your local IEC mem
4、ber National Committee for further information. Droits de reproduction rservs. Sauf indication contraire, aucune partie de cette publication ne peut tre reproduite ni utilise sous quelque forme que ce soit et par aucun procd, lectronique ou mcanique, y compris la photocopie et les microfilms, sans l
5、accord crit de lIEC ou du Comit national de lIEC du pays du demandeur. Si vous avez des questions sur le copyright de lIEC ou si vous dsirez obtenir des droits supplmentaires sur cette publication, utilisez les coordonnes ci-aprs ou contactez le Comit national de lIEC de votre pays de rsidence. IEC
6、Central Office Tel.: +41 22 919 02 11 3, rue de Varemb Fax: +41 22 919 03 00 CH-1211 Geneva 20 infoiec.ch Switzerland www.iec.ch About the IEC The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes International Standards for all electrical
7、, electronic and related technologies. About IEC publications The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the latest edition, a corrigenda or an amendment might have been published. IEC Catalogue - webstore.iec.ch/catalogue The s
8、tand-alone application for consulting the entire bibliographical information on IEC International Standards, Technical Specifications, Technical Reports and other documents. Available for PC, Mac OS, Android Tablets and iPad. IEC publications search - www.iec.ch/searchpub The advanced search enables
9、 to find IEC publications by a variety of criteria (reference number, text, technical committee,). It also gives information on projects, replaced and withdrawn publications. IEC Just Published - webstore.iec.ch/justpublished Stay up to date on all new IEC publications. Just Published details all ne
10、w publications released. Available online and also once a month by email. Electropedia - www.electropedia.org The worlds leading online dictionary of electronic and electrical terms containing more than 30 000 terms and definitions in English and French, with equivalent terms in 15 additional langua
11、ges. Also known as the International Electrotechnical Vocabulary (IEV) online. IEC Glossary - std.iec.ch/glossary More than 60 000 electrotechnical terminology entries in English and French extracted from the Terms and Definitions clause of IEC publications issued since 2002. Some entries have been
12、collected from earlier publications of IEC TC 37, 77, 86 and CISPR. IEC Customer Service Centre - webstore.iec.ch/csc If you wish to give us your feedback on this publication or need further assistance, please contact the Customer Service Centre: csciec.ch. A propos de lIEC La Commission Electrotech
13、nique Internationale (IEC) est la premire organisation mondiale qui labore et publie des Normes internationales pour tout ce qui a trait llectricit, llectronique et aux technologies apparentes. A propos des publications IEC Le contenu technique des publications IEC est constamment revu. Veuillez vou
14、s assurer que vous possdez ldition la plus rcente, un corrigendum ou amendement peut avoir t publi. Catalogue IEC - webstore.iec.ch/catalogue Application autonome pour consulter tous les renseignements bibliographiques sur les Normes internationales, Spcifications techniques, Rapports techniques et
15、autres documents de lIEC. Disponible pour PC, Mac OS, tablettes Android et iPad. Recherche de publications IEC - www.iec.ch/searchpub La recherche avance permet de trouver des publications IEC en utilisant diffrents critres (numro de rfrence, texte, comit dtudes,). Elle donne aussi des informations
16、sur les projets et les publications remplaces ou retires. IEC Just Published - webstore.iec.ch/justpublished Restez inform sur les nouvelles publications IEC. Just Published dtaille les nouvelles publications parues. Disponible en ligne et aussi une fois par mois par email. Electropedia - www.electr
17、opedia.org Le premier dictionnaire en ligne de termes lectroniques et lectriques. Il contient plus de 30 000 termes et dfinitions en anglais et en franais, ainsi que les termes quivalents dans 15 langues additionnelles. Egalement appel Vocabulaire Electrotechnique International (IEV) en ligne. Gloss
18、aire IEC - std.iec.ch/glossary Plus de 60 000 entres terminologiques lectrotechniques, en anglais et en franais, extraites des articles Termes et Dfinitions des publications IEC parues depuis 2002. Plus certaines entres antrieures extraites des publications des CE 37, 77, 86 et CISPR de lIEC. Servic
19、e Clients - webstore.iec.ch/csc Si vous dsirez nous donner des commentaires sur cette publication ou si vous avez des questions contactez-nous: csciec.ch. IEC 60404-5 Edition 3.0 2015-04 INTERNATIONAL STANDARD NORME INTERNATIONALE Magnetic materials Part 5: Permanent magnet (magnetically hard) mater
20、ials Methods of measurement of magnetic properties Matriaux magntiques Partie 5: Aimants permanents (magntiques durs) Mthodes de mesure des proprits magntiques INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE ICS 17.220.20; 29.030 ISBN 978-2-8322-2593-6 Registered
21、 trademark of the International Electrotechnical Commission Marque dpose de la Commission Electrotechnique Internationale Warning! Make sure that you obtained this publication from an authorized distributor. Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur
22、agr. 2 IEC 60404-5:2015 IEC 2015 CONTENTS FOREWORD . 3 INTRODUCTION . 5 1 Scope 6 2 Normative references 6 3 Terms and definitions 6 4 Electromagnet and conditions for magnetization 6 4.1 General . 6 4.2 Geometrical conditions . 8 4.3 Electromagnetic conditions . 8 5 Test specimen . 9 6 Determinatio
23、n of the magnetic flux density 10 7 Determination of the magnetic polarization 10 8 Measurement of the magnetic field strength. 11 9 Determination of the demagnetization curve 12 9.1 General . 12 9.2 Principle of determination of the demagnetization curve, test specimen magnetized in the electromagn
24、et 12 9.3 Principle of determination of the demagnetization curve, test specimen magnetized in a superconducting coil or pulse magnetizer 13 10 Determination of the principal characteristics . 14 10.1 Remanent flux density 14 10.2 (BH) maxproduct . 14 10.3 Coercivities H cBand H cJ14 10.4 Determinat
25、ion of the recoil line and the recoil permeability 14 11 Reproducibility . 15 12 Test report . 15 Annex A (normative) Influence of the air-gap between the test specimen and the pole pieces . 17 Annex B (informative) Influence of the ambient temperature on measurement results 18 Bibliography 19 Figur
26、e 1 Demagnetization curve showing (BH) maxpoint 7 Figure 2 Schematic diagram of electromagnet 8 Figure 3 Measuring circuit (schematic) . 13 Figure 4 Demagnetization curve and recoil loop . 15 Figure A.1 Air-gap 17 Table 1 Reproducibility of the measurement of the magnetic characteristics of permanen
27、t magnet materials . 15 Table A.1 d/l ratios . 17 Table B.1 Temperature coefficients of B rand H cJof permanent magnet materials . 18 IEC 60404-5:2015 IEC 2015 3 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ MAGNETIC MATERIALS Part 5: Permanent magnet (magnetically hard) materials Methods of measureme
28、nt of magnetic properties FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international co-operation on all questions concern
29、ing standardization in the electrical and electronic fields. To this end and in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Their
30、preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with may participate in this preparatory work. International, governmental and non- governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates clo
31、sely with the International Organization for Standardization (ISO) in accordance with conditions determined by agreement between the two organizations. 2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international consensus of opinion on the relev
32、ant subjects since each technical committee has representation from all interested IEC National Committees. 3) IEC Publications have the form of recommendations for international use and are accepted by IEC National Committees in that sense. While all reasonable efforts are made to ensure that the t
33、echnical content of IEC Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any misinterpretation by any end user. 4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications transparently to the maximum
34、extent possible in their national and regional publications. Any divergence between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter. 5) IEC itself does not provide any attestation of conformity. Independent certification bodies prov
35、ide conformity assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any services carried out by independent certification bodies. 6) All users should ensure that they have the latest edition of this publication. 7) No liability shall attach to IEC or
36、its directors, employees, servants or agents including individual experts and members of its technical committees and IEC National Committees for any personal injury, property damage or other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and expense
37、s arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC Publications. 8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is indispensable for the correct application of this publication. 9) Attenti
38、on is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent rights. IEC shall not be held responsible for identifying any or all such patent rights. International Standard IEC 60404-5 has been prepared by IEC technical committee 68: Magnetic alloys a
39、nd steels. This third edition cancels and replaces the second edition published in 1993 and Amendment 1:2007. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: adaption of the measurement methods and
40、 test conditions to newly introduced magnetically hard materials with coercivity values H cJhigher than 2 MA/m; update of the temperature conditions to allow the measurement of new materials with high temperature coefficients. 4 IEC 60404-5:2015 IEC 2015 The text of this standard is based on the fol
41、lowing documents: FDIS Report on voting 68/497/FDIS 68/505/RVD Full information on the voting for the approval of this standard can be found in the report on voting indicated in the above table. This publication has been drafted in accordance with the ISO/IEC Directives, Part 2. A list of all parts
42、in the IEC 60404 series, published under the general title Magnetic materials, can be found on the IEC website. The committee has decided that the contents of this publication will remain unchanged until the stability date indicated on the IEC web site under “http:/webstore.iec.ch“ in the data relat
43、ed to the specific publication. At this date, the publication will be reconfirmed, withdrawn, replaced by a revised edition, or amended. IEC 60404-5:2015 IEC 2015 5 INTRODUCTION The previous edition of IEC 60404-5 was issued in October 1993 and amended in 2007. Since then, new applications of NdFeB
44、sintered magnetic materials with intrinsic coercivity, H cJ , higher than 2 MA/m for hybrid electric vehicles and fully electric vehicles have appeared. Thus, IEC TC68 decided in 2011 at their meeting in Ghent to revise IEC 60404-5. For the measurement of the coercivity relating to polarization, H c
45、J , at values higher than 2 MA/m and the measurement of magnetic properties at elevated temperatures, the methods described in the non-normative Technical Reports IEC TR 61807 and IEC TR 62331 can be considered. The ambient temperature previously recommended was (23 5) C. However, for permanent magn
46、et materials such as NdFeB and hard ferrites that have large temperature coefficients, it is strongly recommended that the ambient temperature should be controlled within this range to 1 C or better. It is desirable to apply this temperature recommendation for other hard magnet materials. This recom
47、mendation was already included in IEC 60404-5:1993/AMD1:2007. 6 IEC 60404-5:2015 IEC 2015 MAGNETIC MATERIALS Part 5: Permanent magnet (magnetically hard) materials Methods of measurement of magnetic properties 1 Scope The purpose of this part of IEC 60404 is to define the method of measurement of th
48、e magnetic flux density, magnetic polarization and the magnetic field strength and also to determine the demagnetization curve and recoil line of permanent magnet materials, such as those specified in lEC 60404-8-1 1 1 , the properties of which are presumed homogeneous throughout their volume. The p
49、erformance of a magnetic system is not only dependent on the properties of the permanent magnet material but also on the dimensions of the system, the air-gap and other elements of the magnetic circuit. The methods described in this part of IEC 60404 refer to the measurement of the magnetic properties in a closed magnetic circuit. 2 Normative references The following documents, in whole or i
