BS EN ISO 3211-2010 Anodizing of aluminium and its alloys Assessment of resistance of anodic oxidation coatings to cracking by deformation《铝和铝合金的阳极氧化 阳极氧化涂层变形裂解耐受性评定》.pdf

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1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN ISO 3211:2010Anodizing of aluminium andits alloys Assessment ofresistance of anodic oxidationcoatings to cracking bydeformation (ISO 3211:2010)BS EN ISO 3211:2010 BRITISH S

2、TANDARDNational forewordThis British Standard is the UK implementation of EN ISO 3211:2010.It supersedes BS EN 12373-15:2001 which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee STI/32, Anodic oxidation coatings on aluminium.A list of organizations represent

3、ed on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. BSI 2010ISBN 978 0 580 65993 5ICS 25.220.20; 77.120.10Compliance with a British Standard cannot co

4、nfer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 30 September 2010.Amendments issued since publicationDate Text affectedEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 3211 September 2010 ICS 25.220.

5、20 Supersedes EN 12373-15:2000English Version Anodizing of aluminium and its alloys - Assessment of resistance of anodic oxidation coatings to cracking by deformation (ISO 3211:2010) Anodisation de laluminium et de ses alliages - valuation de la rsistance des couches anodiques la formation de crique

6、s par dformation (ISO 3211:2010) Anodisieren von Aluminium und Aluminiumlegierungen - Prfung der Bestndigkeit von anodisch erzeugten Oxidschichten gegen Rissbildung bei Verformung (ISO 3211:2010) This European Standard was approved by CEN on 31 August 2010. CEN members are bound to comply with the C

7、EN/CENELEC Internal Regulations 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 CEN Management Centre or

8、 to any CEN member. This European 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 CEN Management Centre has the same status as the official ver

9、sions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, S

10、lovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2010 CEN All rights of exploitation in any form and by any means reserved worldwide for CE

11、N national Members. Ref. No. EN ISO 3211:2010: EBS EN ISO 3211:2010EN ISO 3211:2010 (E) 3 Foreword The text of ISO 3211:2010 has been prepared by Technical Committee ISO/TC 79 “Light metals and their alloys“ of the International Organization for Standardization (ISO) and has been taken over as EN IS

12、O 3211:2010 by Technical Committee CEN/TC 132 “Aluminium and aluminium alloys” the secretariat of which is held by AFNOR. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by March 2011, and conflictin

13、g national standards shall be withdrawn at the latest by March 2011. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document sup

14、ersedes EN 12373-15:2000. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece,

15、 Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Endorsement notice The text of ISO 3211:2010 has been approved by CEN as a EN ISO 3211:2010 without any modi

16、fication. BS EN ISO 3211:2010ISO 3211:2010(E) ISO 2010 All rights reserved iiiForeword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through IS

17、O 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 organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates c

18、losely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare International Standards. D

19、raft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this do

20、cument may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 3211 was prepared by Technical Committee ISO/TC 79, Light metals and their alloys, Subcommittee SC 2, Organic and anodic oxidation coatings on aluminium. This third editio

21、n cancels and replaces the second edition (ISO 3211:1977), which has been technically revised. BS EN ISO 3211:2010BS EN ISO 3211:2010INTERNATIONAL STANDARD ISO 3211:2010(E) ISO 2010 All rights reserved 1Anodizing of aluminium and its alloys Assessment of resistance of anodic oxidation coatings to cr

22、acking by deformation 1 Scope This International Standard specifies an empirical method for assessing the resistance of anodic oxidation coatings to cracking by deformation. The method is applicable particularly to sheet material with anodic oxidation coatings of thickness less than 5 m, and is usef

23、ul for development purposes. NOTE If the test piece is thick, even more than 5 m of coating can be measured (see Clause 6). 2 Principle A test piece is bent along a spiral, graduated with a radius of curvature index, using a simple instrument. The radius of curvature corresponding to the region wher

24、e the first cracks in the oxide layer appear is determined and the percentage elongation of the test piece corresponding to this radius is calculated. 3 Apparatus 3.1 Measuring instrument, as shown in Figure 1, which includes the following elements. 3.1.1 Steel former, mounted on a suitable base, in

25、 the shape of a spiral, graduated in deformation indexes, E, from 1 to 18. These indexes, E, correspond to radii of curvature, R, as shown in Table 1, and are derived from Equation (1): R = 21 E (1) where R is the radius of curvature, in centimetres; E is the deformation index corresponding to the r

26、egion where the first cracks appear. 3.1.2 Two screws, for clamping the ends of the test piece. BS EN ISO 3211:2010ISO 3211:2010(E) 2 ISO 2010 All rights reservedTable 1 Relationship between radius of curvature R and deformation index E Deformation index E Radius of curvature R cm Deformation index

27、E Radius of curvature R cm 1 20 10 11 2 19 11 10 3 18 12 9 4 17 13 8 5 16 14 7 6 15 15 6 7 14 16 5 8 13 17 4 9 12 18 3 4 Procedure 4.1 Test piece Cut a strip of anodized aluminium having approximately the following dimensions: length: 25 cm; width: 2 cm; maximum thickness: 0,5 cm. 4.2 Determination

28、Clamp one end of the test piece with the clamping screw 3 with the significant surface outwards. Bend the test piece progressively over the spiral, in such a way that the test piece remains in contact with the spiral, and clamp the other end with the second screw 5. Beginning from clamping screw 3,

29、examine the anodic oxidation coating and mark the region where the first cracks appear. lf the cracks are difficult to detect, they can be rendered visible using the procedure described in ISO 2085 by removing the bent test piece and immersing it in copper sulfate solution for 5 min, then rinsing an

30、d drying it. The test piece is then replaced on the apparatus and the deformation index corresponding to the region where the first cracks appear is marked. 5 Expression of results Express the elongation, A, of the anodized metal as a percentage using Equation (2): 1002dAR d=+(2) BS EN ISO 3211:2010

31、ISO 3211:2010(E) ISO 2010 All rights reserved 3where d is the thickness, in centimetres, of the test piece; R is the radius of curvature, in centimetres, given by Equation (1). 6 Test report The test report shall include at least the following information: a) a reference to this International Standa

32、rd; b) the type and identification of the product tested; c) the result of the test (see Clause 5); d) the thickness of the test piece, the anodic coating thickness and the index, E, in the case of a thick test piece with an anodic coating greater than 5 m; e) anything unusual noticed during the det

33、ermination; f) any operations not included in the procedure described in this International Standard, or considered to be optional; g) the date of the test. BS EN ISO 3211:2010ISO 3211:2010(E) 4 ISO 2010 All rights reservedKey 1 steel spiral 4 rubber pad 2 wooden base 5 clamping screw 3 clamping scr

34、ew, removable Figure 1 Deformation index measuring instrument (scale 1: 1,7) BS EN ISO 3211:2010ISO 3211:2010(E) ISO 2010 All rights reserved 5Bibliography 1 ISO 2085, Anodizing of aluminium and its alloys Check for continuity of thin anodic oxidation coatings Copper sulfate test This page deliberat

35、ely left blankThis page deliberately left blankBSI is the independent national body responsible for preparing British Standardsand other standards-related publications, information and services. It presents the UK view on standards in Europe and at the international level. It is incorporated by Roya

36、l Charter.British Standards Institution (BSI)raising standards worldwideBSI Group Headquarters389 Chiswick High Road London W4 4AL UKTel +44 (0)20 8996 9001Fax +44 (0)20 8996 Standards are updated by amendment or revision. Users of British Stan-dards should make sure that they possess the latest am

37、endments or editions.It is the constant aim of BSI to improve the quality of our products and serv-ices. We would be grateful if anyone finding an inaccuracy or ambiguity whileusing this British Standard would inform the Secretary of the technical com-mittee responsible, the identity of which can be

38、 found on the inside frontcover.Tel: +44 (0)20 8996 9001 Fax: +44 (0)20 8996 7001BSI offers Members an individual updating service called PLUS which ensuresthat subscribers automatically receive the latest editions of standards.Tel: +44 (0)20 8996 7669 Fax: +44 (0)20 8996 7001Email: Buying standards

39、You may buy PDF and hard copy versions of standards directly using acredit card from the BSI Shop on the website addition all orders for BSI, international and foreign standards publicationscan be addressed to BSI Customer Services.Tel: +44 (0)20 8996 9001 Fax: +44 (0)20 8996 7001Email: In response

40、 to orders for international standards, it is BSI policy tosupply the BSI implementation of those that have been publishedas British Standards, unless otherwise requested.Information on standardsBSI provides a wide range of information on national, Europeanand international standards through its Kno

41、wledge Centre.Tel: +44 (0)20 8996 7004 Fax: +44 (0)20 8996 7005Email: Various BSI electronic information services are also available whichgive details on all its products and services. Tel: +44 (0)20 8996 7111 Fax: +44 (0)20 8996 7048Email: BSI Subscribing Members are kept up to date with standardsd

42、evelopments and receive substantial discounts on the purchase priceof standards. For details of these and other benefits contact Membership Ad-ministration. Tel: +44 (0)20 8996 7002 Fax: +44 (0)20 8996 7001 Email: Information regarding online access to British Standards via BritishStandards Online

43、can be found at information about BSI is available on the BSI website at www.bsi- subsists in all BSI publications. BSI also holds the copyright,in the UK, of the publications of the international standardization bodies. Ex-cept as permitted under the Copyright, Designs and Patents Act 1988 no ex-t

44、ract may be reproduced, stored in a retrieval system or transmitted in anyform or by any means electronic, photocopying, recording or otherwise without prior written permission from BSI. This does not preclude the freeuse, in the course of implementing the standard of necessary details such assymbols, and size, type or grade designations. If these details are to be usedfor any other purpose than implementation then the prior written permissionof BSI must be obtained. Details and advice can be obtained from the Copy-right & Licensing Manager.Tel: +44 (0)20 8996 7070Email:

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