BS-EN-10330-2003.pdf
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1、BRITISH STANDARD BS EN 10330:2003 Magnetic materials Method of measurement of the coercivity of magnetic materials in an open circuit The European Standard EN 10330:2003 has the status of a British Standard ICS 29.030 ? Licensed Copy: sheffieldun sheffieldun, na, Thu Oct 26 04:40:01 GMT+00:00 2006,
2、Uncontrolled Copy, (c) BSI BS EN 10330:2003 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 2 May 2003 BSI 2 May 2003 ISBN 0 580 41785 9 National foreword This British Standard is the official English language version of EN 10330:2003. It sup
3、ersedes BS 6404-7:1986 which is withdrawn. The UK participation in its preparation was entrusted to Technical Committee ISE/NFE/5, Magnetic 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-ref
4、erences The British Standards which implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of Briti
5、sh Standards Online. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present
6、 to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an ins
7、ide front cover, the EN title page, pages 2 to 10, an inside back cover and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. DateComments Licensed Copy: sheffieldun sheffieldun, na, Thu Oct 26 04
8、:40:01 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 10330 April 2003 ICS 29.030 English version Magnetic materials - Method of measurement of the coercivity of magnetic materials in an open circuit Matriaux magntiques - Mthode de mesure du champ coe
9、rcitif des matriaux magntiques en circuit magntique ouvert Magnetische Werkstoffe - Verfahren zur Messung der Koerzivitt magnetischer Werkstoffe im offenen Magnetkreis This European Standard was approved by CEN on 21 February 2003. CEN members are bound to comply with the CEN/CENELEC Internal Regula
10、tions which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Management Centre or to any CEN member. This Europ
11、ean Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the Management Centre has the same status as the official versions. CEN members are the nationa
12、l standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORM
13、ALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2003 CENAll rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 10330:2003 E Licensed Copy: sheffieldun sheffieldun, na, Thu Oct 26 04:40:01 GMT+00
14、:00 2006, Uncontrolled Copy, (c) BSI EN 10330:2003 (E) 2 Contents page Foreword3 1Scope 4 2Normative references 4 3Terms and definitions4 4Principle4 5Test specimen5 6Measurement5 6.1Magnetization.5 6.2Measuring devices.5 6.2.1General5 6.2.2Method A.5 6.2.3Method B.6 6.3Determination of coercivity.6
15、 6.4Reproducibility.6 7Test report 7 Annex A (normative) Precautions to be taken for measurements of coercivity below 40 A/m and above 160 kA/m .10 Licensed Copy: sheffieldun sheffieldun, na, Thu Oct 26 04:40:01 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 10330:2003 (E) 3 Foreword This document (E
16、N 10330:2003) has been prepared by Technical Committee ECISS/TC 24, “Electrical steel sheet and strip qualities - Qualities dimensions, tolerances and specific tests“, the secretariat of which is held by DIN. This European Standard shall be given the status of a national standard, either by publicat
17、ion of an identical text or by endorsement, at the latest by October 2003, and conflicting national standards shall be withdrawn at the latest by October 2003. This document is equivalent to IEC 60404-7. Annex A is normative. According to the CEN/CENELEC Internal Regulations, the national standards
18、organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and the United
19、 Kingdom. Licensed Copy: sheffieldun sheffieldun, na, Thu Oct 26 04:40:01 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 10330:2003 (E) 4 1 Scope This European Standard specifies the method of measurement of the coercivity of magnetic materials in an open magnetic circuit. It applies to magnetic mate
20、rials having a coercivity up to 500 kA/m. Special precautions to take in measuring coercivities below 40 A/m and above 160 kA/m are given in annex A. 2 Normative references This European Standard incorporates by dated or undated reference, provisions from other publications. These normative referenc
21、es are cited at the appropriate places in the text, and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references the la
22、test edition of the publication referred to applies (including amendments). IEC 60050-121:1998, International Electrotechnical Vocabulary (IEV) Chapter 121: Electromagnetism. IEC 60050-221:1990, International Electrotechnical Vocabulary (IEV) Chapter 221: Magnetic materials and components. 3 Terms a
23、nd definitions For the purposes of this European Standard, the terms and definitions given in IEC 60050-121:1998 and IEC 60050-221:1990 and the following apply 3.1 coercivity, HcJ magnetic field strength required to reduce the magnetic polarization to zero in a magnetic specimen which has previously
24、 been magnetized to saturation NOTEThe coercivities HcB and HcJ are respectively discriminated depending on the hysteresis loop being defined in the B = f(H), or J = f(H) system (see Figure 1). It can be shown that, for materials of high-incremental permeability in the region B = 0, the difference b
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