BS ISO 7802-2013 en_5373 Metallic materials Wire Wrapping test《金属材料.线材.缠绕试验》.pdf

《BS ISO 7802-2013 en_5373 Metallic materials Wire Wrapping test《金属材料.线材.缠绕试验》.pdf》由会员分享，可在线阅读，更多相关《BS ISO 7802-2013 en_5373 Metallic materials Wire Wrapping test《金属材料.线材.缠绕试验》.pdf（12页珍藏版）》请在麦多课文档分享上搜索。

1、BSI Standards Publication BS ISO 7802:2013 Metallic materials Wire Wrapping testBS ISO 7802:2013 BRITISH STANDARD National foreword This British Standard is the UK implementation of ISO 7802:2013. The UK participation in its preparation was entrusted to Technical Committee ISE/101/2, Ductility testi

2、ng. A list of organizations represented on this committee can be obtained on request to its secretary. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2013. Published by BSI

3、Standards Limited 2013 ISBN 978 0 580 82937 6 ICS 77.040.10 Compliance with a British Standard cannot confer immunity from legal obligations. This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 December 2013. Amendments issued since publicatio

4、n Date T e x t a f f e c t e dBS ISO 7802:2013 ISO 2013 Metallic materials Wire Wrapping test Matriaux mtalliques Fils Essai denroulement INTERNATIONAL STANDARD ISO 7802 Second edition 2013-11-01 Reference number ISO 7802:2013(E)BS ISO 7802:2013ISO 7802:2013(E)ii ISO 2013 All rights reserved COPYRIG

5、HT PROTECTED DOCUMENT ISO 2013 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior written permissi

6、on. Permission can be requested from either ISO at the address below or ISOs member body in the country of the requester. ISO copyright office Case postale 56 CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyrightiso.org Web www.iso.org Published in SwitzerlandBS ISO 7802:20

7、13ISO 7802:2013(E) ISO 2013 All rights reserved iii Contents Page Foreword iv 1 Scope . 1 2 Principle 1 3 Test equipment. 1 4 Procedure. 1 5 Test report . 1BS ISO 7802:2013ISO 7802:2013(E) Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standar

8、ds bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organi

9、zations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. The procedures used to develop this document and those intended for its f

10、urther maintenance are described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the different types of ISO documents should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2. www.iso.org/directive

11、s Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of any patent rights identified during the development of the document will be in the Intro

12、duction and/or on the ISO list of patent declarations received. www.iso.org/patents Any trade name used in this document is information given for the convenience of users and does not constitute an endorsement. The committee responsible for this document is ISO/TC 164, Mechanical testing of metals,

13、Subcommittee SC 2, Ductility testing. This second edition cancels and replaces the first. edition (ISO 7802:1983), of which it constitutes a minor revision.iv ISO 2013 All rights reservedBS ISO 7802:2013INTERNATIONAL ST ANDARD ISO 7802:2013(E) Metallic materials Wire Wrapping test 1 Scope This Inter

14、national Standard specifies a method for determining the ability of metallic wire of diameter or thickness 0,1 mm to 10 mm inclusive, to undergo plastic deformation during wrapping. 2 Principle The wrapping test consists of winding a wire to a specified number of turns around a mandrel of the diamet

15、er specified in the relevant standard to form a closely wrapped helix. It may also include a specified sequence of winding and unwinding, or even rewinding. 3 Test equipment The testing machine shall be constructed so the wire can be wound around the mandrel in a helix so that adjacent wraps of the

16、coil are in contact. A piece of the wire to be tested may be used as the mandrel, provided it is of the specified mandrel diameter and of sufficient hardness. 4 Procedure 4.1 In general, the test is carried out at ambient temperature between 10 C and 35 C. Tests carried out under controlled conditio

17、ns shall be made at a temperature of 23 C 5 C. 4.2 Without applying any torsion, wind the wire in a helix tightly around the mandrel at a constant rate not exceeding 1 wrap per second so that the adjacent wraps of the coil are in contact. If necessary, reduce the rate of wrapping to ensure that the

18、heat generated does not affect the result of the test. 4.3 To ensure tight winding, a tensile stress not exceeding 5 % of the nominal tensile strength of the wire may be applied during winding. 4.4 When unwinding, or unwinding and rewinding, are specified, the rate shall be sufficiently slow to prev

19、ent any rise of temperature likely to affect the result of the test. At the end of the unwinding, at least one turn shall not be unwound. 4.5 The interpretation of the wrapping test is carried out according to the requirements of the relevant Standard. When these requirements are not specified, abse

20、nce of cracks visible without the use of magnifying aids is considered as sufficient evidence that the test piece withstood the test. Wire with a thickness or diameter less than 0,5 mm shall be examined with approximately 10-times magnification. 5 Test report The test report shall include the follow

21、ing information: a) a reference to this International Standard; b) identification of the test piece (type of material, type of coating, etc.); c) diameter or thickness of the test piece; ISO 2013 All rights reserved 1BS ISO 7802:2013ISO 7802:2013(E) d) diameter of the mandrel; e) test conditions (nu

22、mber of turns, or the wound length); f) test result.2 ISO 2013 All rights reservedBS ISO 7802:2013BS ISO 7802:2013ISO 7802:2013(E) ISO 2013 All rights reserved IC S 77.040.10 Price based on 2 pagesThis page deliberately left blankBSI is the national body responsible for preparing British Standards a

23、nd other standards-related publications, information and services. BSI is incorporated by Royal Charter. British Standards and other standardization products are published by BSI Standards Limited. British Standards Institution (BSI) BSI Group Headquarters 389 Chiswick High Road London W4 4AL UK Abo

24、ut us We bring together business, industry, government, consumers, innovators and others to shape their combined experience and expertise into standards -based solutions. The knowledge embodied in our standards has been carefully assembled in a dependable format and refined through our open consulta

25、tion process. Organizations of all sizes and across all sectors choose standards to help them achieve their goals. Information on standards We can provide you with the knowledge that your organization needs to succeed. Find out more about British Standards by visiting our website at or contacting o

26、ur Customer Services team or Knowledge Centre. Buying standards You can buy and download PDF versions of BSI publications, including British and adopted European and international standards, through our website at where hard copies can also be purchased. If you need international and foreign standa

27、rds from other Standards Development Organizations, hard copies can be ordered from our Customer Services team. Subscriptions Our range of subscription services are designed to make using standards easier for you. For further information on our subscription products go to With British Standards Onl

28、ine (BSOL) youll have instant access to over 55,000 British and adopted European and international standards from your desktop. Its available 24/7 and is refreshed daily so youll always be up to date. You can keep in touch with standards developments and receive substantial discounts on the purchase

29、 price of standards, both in single copy and subscription format, by becoming a BSI Subscribing Member. PLUS is an updating service exclusive to BSI Subscribing Members. You will automatically receive the latest hard copy of your standards when theyre revised or replaced. To find out more about beco

30、ming a BSI Subscribing Member and the benefits of membership, please visit With a Multi-User Network Licence (MUNL) you are able to host standards publications on your intranet. Licences can cover as few or as many users as you wish. With updates supplied as soon as theyre available, you can be sur

31、e your documentation is current. For further information, email . Revisions Our British Standards and other publications are updated by amendment or revision. We continually improve the quality of our products and services to benefit your business. If you find an inaccuracy or ambiguity within a Bri

32、tish Standard or other BSI publication please inform the Knowledge Centre. Copyright All the data, software and documentation set out in all British Standards and other BSI publications are the property of and copyrighted by BSI, or some person or entity that owns copyright in the information used (

33、such as the international standardization bodies) and has formally licensed such information to BSI for commercial publication and use. Except as permitted under the Copyright, Designs and Patents Act 1988 no extract may be reproduced, stored in a retrieval system or transmitted in any form or by an

34、y means electronic, photocopying, recording or otherwise without prior written permission from BSI. Details and advice can be obtained from the Copyright & Licensing Department. Useful Contacts: Customer Services Tel: +44 845 086 9001 Email (orders): Email (enquiries): Subscriptions Tel: +44 845 086 9001 Email: Knowledge Centre Tel: +44 20 8996 7004 Email: Copyright & Licensing Tel: +44 20 8996 7070 Email: NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW