1、 IEC 60404-8-1 Edition 3.0 2015-03 INTERNATIONAL STANDARD NORME INTERNATIONALE Magnetic materials Part 8-1: Specifications for individual materials Magnetically hard materials Matriaux magntiques Partie 8-1: Spcifications pour matriaux particuliers Matriaux magntiquement durs IEC 60404-8-1:2015-03(e
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19、/csc Si vous dsirez nous donner des commentaires sur cette publication ou si vous avez des questions contactez-nous: csciec.ch. IEC 60404-8-1 Edition 3.0 2015-03 INTERNATIONAL STANDARD NORME INTERNATIONALE Magnetic materials Part 8-1: Specifications for individual materials Magnetically hard materia
20、ls Matriaux magntiques Partie 8-1: Spcifications pour matriaux particuliers Matriaux magntiquement durs INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE ICS 17.220.20; 29.030 ISBN 978-2-8322-2429-8 Registered trademark of the International Electrotechnical Commiss
21、ion 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 agr. 2 IEC 60404-8-1:2015 IEC 2015 CONTENTS FOREWORD . 4
22、 INTRODUCTION . 6 1 Scope 7 2 Normative references. 7 3 Terms and definitions 7 4 Types of materials and their applications 7 5 Classification . 8 5.1 General . 8 5.2 Principal magnetic properties 8 5.3 Additional magnetic properties . 9 6 Chemical composition 10 7 Densities . 10 8 Designation . 10
23、9 Mode of shipment and dimensions . 10 10 Testing 10 10.1 Extent of testing 10 10.2 Testing methods . 10 11 Grounds for rejection . 11 12 Description of tables of standard properties 11 12.1 Magnetically hard alloys 11 12.1.1 Aluminium-nickel-cobalt-iron-titanium alloys (AINiCo) . 11 12.1.2 Chromium
24、-iron-cobalt alloys (CrFeCo) 12 12.1.3 Iron-cobalt-vanadium-chromium alloys (FeCoVCr) . 12 12.1.4 Rare earth-cobalt alloys (RECo) 13 12.1.5 Rare earth-iron-boron alloys (REFeB) . 14 12.2 Magnetically hard ceramics (magnetically hard ferrites) 14 12.2.1 Chemical composition . 14 12.2.2 Manufacturing
25、method . 15 12.2.3 Sub-classification 15 12.2.4 Magnetic properties and densities 15 12.2.5 Dimensional tolerances 15 12.3 Bonded magnets . 15 12.3.1 General . 15 12.3.2 Chemical composition 15 12.3.3 Manufacturing method . 16 12.3.4 Sub-classification 16 12.3.5 Magnetic properties and densities 17
26、12.3.6 Dimensional tolerances 17 13 Irreversible demagnetization behaviour 17 13.1 General . 17 13.2 General definition of demagnetization field strength H D. 18 13.3 Simplified definition of demagnetization field strength H D . 18 14 Tables 10 to 23 20 Annex A (informative) Physical data and mechan
27、ical reference values of AINiCo, CrFeCo, FeCoVCr, SmCo, NdFeB, hard ferrite and bonded SmFeN magnets . 34 IEC 60404-8-1:2015 IEC 2015 3 Bibliography . 36 Figure 1 Graphic representation of B(H) and J(H) demagnetization and recoil curves . 19 Figure 2 Simplified evaluation of B(H) and J(H) demagnetiz
28、ation and recoil curves 20 Table 1 Classification of magnetically hard materials 8 Table 2 Magnetic properties Symbols and units9 Table 3 Additional magnetic properties Symbols and units 9 Table 4 Chemical compositions of AlNiCo alloys (% mass fraction) . 11 Table 5 Chemical compositions of CrFeCo a
29、lloys (% mass fraction) . 12 Table 6 Chemical compositions of FeCoVCr alloys (% mass fraction) . 12 Table 7 Chemical compositions of RECo alloys (% mass fraction) . 13 Table 8 Chemical compositions of REFeB alloys (% mass fraction) 14 Table 9 Chemical compositions of REFeN alloys for bonded magnet (
30、% mass fraction) . 16 Table 10 Magnetic properties and densities of AlNiCo magnets . 21 Table 11 Magnetic properties and densities of CrFeCo and FeCoVCr magnets 22 Table 12 Magnetic properties and densities of RECo magnets 23 Table 13 Magnetic properties and densities of REFeB magnets 24 Table 14 Ma
31、gnetic properties and densities of hard ferrites . 25 Table 15 Magnetic properties and densities of isotropic AlNiCo alloys with organic binder . 26 Table 16 Magnetic properties and densities of RECo alloys with organic binder . 27 Table 17 Magnetic properties and densities of isotropic REFeB alloys
32、 with organic binder . 28 Table 18 Magnetic properties and densities of isotropic and anisotropic hard ferrites with organic binder . 29 Table 19 Magnetic properties and densities of anisotropic REFeN alloys with organic binder . 30 Table 20 Dimensional tolerances (as cast or as sintered) of magnets
33、 made from AlNiCo alloys 31 Table 21 Dimensional tolerances of cold rolled strips of FeCoVCr and CrFeCo alloys with a maximum thickness of 6 mm and maximum width of 125 mm . 32 Table 22 Dimensional tolerances of the diameter of cold drawn wires and bars of FeCoVCr and CrFeCo alloys . 32 Table 23 Dim
34、ensional tolerances on magnets made from hard ferrites 33 Table A.1 Physical data and mechanical reference values of AlNiCo, CrFeCo, FeCoVCr, SmCo, NdFeB, hard ferrite and bonded SmFeN magnets . 35 4 IEC 60404-8-1:2015 IEC 2015 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ MAGNETIC MATERIALS Part 8-1:
35、 Specifications for individual materials Magnetically hard materials 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 internat
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45、application of this publication. 9) Attention 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 60404-8-1 has been prepared by
46、IEC technical committee 68: Magnetic alloys and steels. This third edition cancels and replaces the second edition published in 2001 and Amendment 1:2004. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edi
47、tion: a) recently developed anisotropic Sm-Fe-N bonded magnets are included; b) high energy ferrites with La and Co as substituents are included. IEC 60404-8-1:2015 IEC 2015 5 The text of this standard is based on the following documents: FDIS Report on voting 68/495/FDIS 68/503/RVD Full information
48、 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 in the IEC 60404 series, published under the general title Magnetic materials,
49、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 related to the specific publication. At this date, the publication will be reconfirmed, withdrawn, replaced by a revised edition, or amended. 6 IEC 60404-8-1:
