SANS 136-2008 Metallic coatings - Electrodeposited coatings of nickel《金属镀层 镍电镀涂层》.pdf

1、 Collection of SANS standards in electronic format (PDF) 1. Copyright This standard is available to staff members of companies that have subscribed to the complete collection of SANS standards in accordance with a formal copyright agreement. This document may reside on a CENTRAL FILE SERVER or INTRA

2、NET SYSTEM only. Unless specific permission has been granted, this document MAY NOT be sent or given to staff members from other companies or organizations. Doing so would constitute a VIOLATION of SABS copyright rules. 2. Indemnity The South African Bureau of Standards accepts no liability for any

3、damage whatsoever than may result from the use of this material or the information contain therein, irrespective of the cause and quantum thereof. ISBN 978-0-626-21912-3 SANS 136:2008Edition 2ISO 1458:2002Edition 3SOUTH AFRICAN NATIONAL STANDARD Metallic coatings Electrodeposited coatings of nickel

4、This national standard is the identical implementation of ISO 1458:2002 and is adopted with the permission of the International Organization for Standardization. Published by SABS Standards Division 1 Dr Lategan Road Groenkloof Private Bag X191 Pretoria 0001Tel: +27 12 428 7911 fax: +27 12 344 1568

5、www.sabs.co.za SABS SANS 136:2008 Edition 2 ISO 1458:2002 Edition 3 Table of changes Change No. Date Scope National foreword This South African standard was approved by National Committee SABS TC 107, Metallic and other inorganic coatings, in accordance with procedures of the SABS Standards Division

6、, in compliance with annex 3 of the WTO/TBT agreement. This SANS document was published in November 2008. This SANS document supersedes SABS ISO 1458:1988 (first edition). INTERNATIONALSTANDARDISO1458Third edition2002-12-01Reference numberISO 1458:2002(E) ISO 2002Metallic coatings Electrodeposited c

7、oatings of nickelRevtements mtalliques Dpts lectrolytiques de nickelSANS 136:2008This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .ISO 1458:2002(E)ii ISO 2002 All rights reservedPDF disclaimerThis PDF file may contain embedded typefaces. In acc

8、ordance with Adobes licensing policy, this file may be printed or viewed but shall not beedited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In downloading this file,parties accept therein the responsibility of not infringing Adobes li

9、censing policy. The ISO Central Secretariat accepts no liability in this area.Adobe is a trademark of Adobe Systems Incorporated.Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation parameterswere optimized for printing

10、. Every care has been taken to ensure that the file is suitable for use by ISO member bodies. In the unlikely eventthat a problem relating to it is found, please inform the Central Secretariat at the address given below. ISO 2002All rights reserved. Unless otherwise specified, no part of this public

11、ation may be reproduced or utilized in any form or by any means,electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or ISOsmember body in the country of the requester.ISO copyright officeCase postale 56 CH-1211 Geneva 20T

12、el. + 41 22 749 01 11Fax + 41 22 749 09 47E-mail copyrightiso.chWeb www.iso.chPrinted in SwitzerlandSANS 136:2008This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .ISO 1458:2002(E) ISO 2002 All rights reserved iiiContents Page1 Scope . 12 Normat

13、ive references . 13 Terms and definitions 24 Information to be supplied by the purchaser to the electroplater 25 Service condition number . 36 Designation . 37 Requirements . 78 Sampling . 9AnnexesA Examples of service conditions for which the various service condition numbers are appropriate 10B Th

14、ickness test methods 11C Ductility test. 13D Determination of the sulfur content of electrodeposited nickel coatings . 14Bibliography. 15SANS 136:2008This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .ISO 1458:2002(E)iv ISO 2002 All rights reser

15、vedForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISOmember bodies). The work of preparing International Standards is normally carried out through ISO technicalcommittees. Each member body interested in a subject for which a t

16、echnical committee has been established hasthe right to be represented on that committee. International organizations, governmental and non-governmental, inliaison with ISO, also take part in the work. ISO collaborates closely with the International ElectrotechnicalCommission (IEC) on all matters of

17、 electrotechnical standardization.International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 3.Draft International Standards adopted by the technical committees are circulated to the member bodies for voting.Publication as an International Standard require

18、s 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 International Standard may be the subject ofpatent rights. ISO shall not be held responsible for identifying any or all such patent rights.International Standard IS

19、O 1458 was prepared by Technical Committee ISO/TC 107, Metallic and other inorganiccoatings, Subcommittee SC 3, Electrodeposited coatings and related finishes.This third edition cancels and replaces the second edition (ISO 1458:1988), which has been technically revised.Annexes B, C and D form a norm

20、ative part of this International Standard. Annex A is for information only.SANS 136:2008This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .ISO 1458:2002(E) ISO 2002 All rights reserved vIntroductionDecorative, electrodeposited nickel coatings wi

21、th and without copper undercoats and without chromium top-coatsare suitable for applications in which tarnishing is prevented by rubbing or handling in service or by the use oftopcoats other than chromium. They are also suitable for those applications where tarnishing is of no importance.Corrosion r

22、esistance depends on the type and thickness of the coatings. In general, multilayer nickel coatingsprovide better protection than single-layer nickel coatings of equal thickness.SANS 136:2008This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .SAN

23、S 136:2008This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .INTERNATIONAL STANDARD ISO 1458:2002(E) ISO 2002 All rights reserved 1Metallic coatings Electrodeposited coatings of nickel1 ScopeThis International Standard specifies requirements for

24、 nickel electrodeposited coatings that are applied to iron andsteel, to zinc alloys, to copper and copper alloys, and to aluminium and aluminium alloys to provide an attractiveappearance and corrosion resistance. In addition, it specifies requirements for copper plus nickel coatings applied toiron a

25、nd steel, and to zinc alloys. Coating designations that differ in thickness and type are specified and guidance isgiven in selecting the coating appropriate to the service conditions to which the coated product will be exposed.This International Standard does not specify the surface condition requir

26、ed by the basis metal prior to the coatingprocess, and is not applicable to coatings on sheet strip or wire in the non-fabricated form nor to threaded fastenersor coil springs.Requirements for nickel plus chromium and copper plus nickel plus chromium coatings for metallic substrates aregiven in ISO

27、1456. Requirements for similar coatings for plastic materials are given in ISO 4525. ISO 4526 andISO 6158 specify requirements for coatings of nickel and chromium, respectively, for engineering purposes.2 Normative referencesThe following normative documents contain provisions which, through referen

28、ce in this text, constitute provisions ofthis International Standard. For dated references, subsequent amendments to, or revisions of, any of thesepublications do not apply. However, parties to agreements based on this International Standard are encouraged toinvestigate the possibility of applying t

29、he most recent editions of the normative documents indicated below. Forundated references, the latest edition of the normative document referred to applies. Members of ISO and IECmaintain registers of currently valid International Standards.ISO 1463, Metallic and oxide coatings Measurement of coatin

30、g thickness Microscopical methodISO 2064, Metallic and other inorganic coatings Definitions and conventions concerning the measurement ofthicknessISO 2079, Surface treatment and metallic coatings General classification of termsISO 2080, Surface treatment, metallic and other inorganic coatings Vocabu

31、laryISO 2177, Metallic coatings Measurement of coating thickness Coulometric method by anodic dissolutionISO 2361, Electrodeposited nickel coatings on magnetic and non-magnetic substrates Measurement of coatingthickness Magnetic methodISO 2819, Metallic coatings on metallic substrates Electrodeposit

32、ed and chemically deposited coatings Reviewof methods available for testing adhesionISO 3497, Metallic coatings Measurement of coating thickness X-ray spectrometric methodsISO 3543, Metallic and non-metallic coatings Measurement of thickness Beta backscatter methodISO 3882, Metallic and other inorga

33、nic coatings Review of methods of measurement of thicknessISO 4519, Electrodeposited metallic coatings and related finishes Sampling procedures for inspection byattributesSANS 136:2008This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .ISO 1458:2

34、002(E)2 ISO 2002 All rights reservedISO 9220, Metallic coatings Measurement of coating thickness Scanning electron microscope methodISO 9227, Corrosion tests in artificial atmospheres Salt spray testsISO 9587, Metallic and other inorganic coatings Pretreatments of iron or steel to reduce the risk of

35、 hydrogenembrittlementISO 9588, Metallic and other inorganic coatings Post-coating treatments of iron or steel to reduce the risk ofhydrogen embrittlementISO 10289, Methods for corrosion testing of metallic and other inorganic coatings on metallic substrates Rating oftest specimens and manufactured

36、articles subjected to corrosion testsISO 16348, Metallic and other inorganic coatings Definitions and conventions concerning appearance3 Terms and definitionsFor the purposes of this International Standard, the definitions given in ISO 2064, ISO 2079, ISO 2080 andISO 16348 apply.4 Information to be

37、supplied by the purchaser to the electroplater4.1 Essential informationWhen ordering articles to be electroplated in accordance with this International Standard, the purchaser shall providethe following information in writing, in, e.g., the contract or purchase order, or on engineering drawings:a) t

38、he designation (see clause 6);b) the appearance required, e.g., bright, dull or satin (see 6.3 and 7.1). Alternatively, samples showing the requiredfinish or range of finish shall be supplied or approved by the purchaser, and used for comparison purposes(see 7.1);c) an indication of the significant

39、surfaces to be made on drawings of the parts, or by the provision of suitablymarked specimens;d) the type of corrosion test to be used (see 7.5 and Table 6);e) the type of adhesion test to be used (see 7.4);f) the extent to which defects are able to be tolerated on non-significant surfaces (see 7.1)

40、;g) the positions on the significant surface for rack or contact marks, where such marks are unavoidable (see 7.1);h) sampling methods and acceptance levels (see clause 8);i) the tensile strength of the steel and any requirement for pre- or post-treatments of iron or steel to reduce the riskof hydro

41、gen embrittlement, as well as hydrogen embrittlement test methods (see 7.8 and 7.9).4.2 Additional informationThe following additional information may be provided by the purchaser, when appropriate:a) any requirements for STEP testing (see 7.6);b) thickness requirements on those areas that cannot be

42、 reached by a ball in diameter (see 7.2);c) whether or not a copper undercoat is required see 6.1 c) and 6.2.20 mmSANS 136:2008This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .ISO 1458:2002(E) ISO 2002 All rights reserved 35 Service condition

43、numberThe service condition number is used by the purchaser to specify the degree of protection required, as related to theseverity of the conditions to which a product is to be subjected, in accordance with the following scale:3 - severe2 - moderate1 - mildTypical service conditions for which the v

44、arious service condition numbers are appropriate are listed in annex A.6 Designation6.1 GeneralThe coating designation is a means of specifying the basis metal and the types and thicknesses of coatingsappropriate for each service condition (see Table 1 to Table 4 for various substrates) and comprise

45、s the following:a) the term, “Electroplated coating”, the number of this International Standard, i.e. ISO 1458, followed by a hyphen;b) the chemical symbol for the basis metal (or for the principal metal if an alloy) followed by a stroke, as follows:Fe/ for iron and steel;Zn/ for zinc alloys;Cu/ for

46、 copper and copper alloys;Al/ for aluminium and aluminium alloys.c) the chemical symbol for copper (Cu), if copper or brass containing more than copper is used as anundercoat;d) a number indicating the minimum local thickness, in micrometres, of the copper coating where applicable;e) a letter indica

47、ting the type of copper, where applicable (see 6.2);f) the chemical symbol for nickel (Ni);g) a number indicating the minimum local thickness of the nickel coating in micrometres;h) a letter designating the type of nickel coating (see 6.3);i) if a topcoat is to be applied over the nickel, its chemic

48、al symbol and a number indicating its minimum localthickness shall be appended to the coating designation. If the topcoat is an electrodeposited alloy, the chemicalsymbols of the principal alloy constituents shall be used. If the topcoat is a precious metal, e.g., gold or silver, thechemical symbol

49、shall be followed by a number in parenthesis giving the minimum content of the precious metalin the topcoat, expressed as mass percent to one decimal point.See the examples of designations given in 6.450 %SANS 136:2008This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .ISO 1458:2002(E)4 ISO 2002 All rights reservedTable 1 Nickel and copper plus nickel coatings on steelService condition number Partial designation3Fe/Ni30bFe/Cu20a Ni25bF