1、August 2016 English price group 11No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS 25.220.40!%Y.K“2541140www.din.deD
2、IN EN ISO 2179Electroplated coatings of tin-nickel alloy Specification and test methods (ISO 2179:1986);English version EN ISO 2179:2016,English translation of DIN EN ISO 2179:2016-08Elektrolytisch hergestellte berzge aus einer Zinn-Nickel-Legierung Anforderungen und Prfverfahren (ISO 2179:1986);Eng
3、lische Fassung EN ISO 2179:2016,Englische bersetzung von DIN EN ISO 2179:2016-08Dpts lectrolytiques dalliage tain-nickel Spcifications et mthodes dessai (ISO 2179:1986);Version anglaise EN ISO 2179:2016,Traduction anglaise de DIN EN ISO 2179:2016-08www.beuth.deDocument comprises 18 pagesDTranslation
4、 by DIN-Sprachendienst.In case of doubt, the German-language original shall be considered authoritative.08.16 DIN EN ISO 2179:2016-08 2 A comma is used as the decimal marker. National foreword The text of ISO 2179:1986 has been prepared by Technical Committee ISO/TC 107 “Metallic and other inorganic
5、 coatings” and has been taken over as EN ISO 2179:2016 by Technical Committee CEN/TC 262 Metallische und andere anorganische berzge (Secretariat: BSI, United Kingdom). The responsible German body involved in its preparation was DIN-Normenausschuss Materialprfung (DIN Standards Committee Materials Te
6、sting), Working Committee NA 062-01-76 AA Chemische und elektrochemische berzge. The DIN Standards corresponding to the International Standards referred to in this document are as follows: ISO 1462 ISO 1463 ISO 2064 ISO 2177 ISO 2819 ISO 2859 ISO 3497 ISO 3543 ISO 4519 ISO 6988 DIN EN ISO 10289*)DIN
7、 EN ISO 1463 DIN EN ISO 2064 DIN EN ISO 2177 DIN EN ISO 2819 DIN ISO 2859 (all parts) DIN EN ISO 3497 DIN EN ISO 3543 DIN EN ISO 4519 DIN EN ISO 6988 *)ISO 1462 has been withdrawn and replaced by ISO 10289. See DIN EN ISO 10289. DIN EN ISO 2179:2016-08 3 National Annex NA (informative) Bibliography
8、DIN EN ISO 1463, Metallic and oxide coatings Measurement of coating thickness Microscopical method DIN EN ISO 2064, Metallic and other non-organic coatings Definitions and conventions concerning the measurement of thickness DIN EN ISO 2177, Metallic coatings Measurement of coating thickness Coulomet
9、ric method by anodic dissolution DIN EN ISO 2819, Metallic coatings on metallic substrates Electrodeposited and chemically deposited coatings Review of methods available for testing adhesion DIN EN ISO 3497, Metallic and oxide coatings Measurement of coating thickness X-ray spectrometric methods DIN
10、 EN ISO 3543, Metallic and non-metallic coatings Measurement of thickness Beta backscatter method DIN EN ISO 4519, Electrodeposited metallic coatings and related finishes Sampling procedures for inspection by attributes DIN EN ISO 6988, Metallic and other non-organic coatings Sulfur dioxide test wit
11、h general condensation of moisture DIN EN ISO 10289, Methods for corrosion testing of metallic and other inorganic coatings on metallic substrates Rating of test specimens and manufactured articles subjected to corrosion test DIN ISO 2859 (all parts), Sampling procedures for inspection by attributes
12、 DIN EN ISO 2179:2016-08 4 This page is intentionally blank EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 2179 April 2016 ICS 25.220.40 English Version Electroplated coatings of tin-nickel alloy Specification and test methods (ISO 2179:1986) Dpts lectrolytiques dalliage tain-nickel Spcifi
13、cations et mthodes dessai (ISO 2179:1986) Elektrolytisch hergestellte berzge aus einer Zinn-Nickel-Legierung Anforderungen und Prfverfahren (ISO 2179:1986) This European Standard was approved by CEN on 2 April 2016. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stip
14、ulate 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-CENELEC Management Centre or to any CEN member. This European
15、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-CENELEC Management Centre has the same status as the official versions. CEN members are the
16、 national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania
17、, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2016 CEN All rights of exploitation in any form and by an
18、y means reserved worldwide for CEN national Members. Ref. No. EN ISO 2179:2016 EEN ISO 2179:2016 (E) 2 Contents Page European foreword . 3 Foreword 4 Introduction 5 1 Scope and field of application . 6 2 References . 6 3 Definition . 7 4 Information to be supplied by the purchaser to the electroplat
19、er . 7 4.1 Essential information 7 4.2 Additional information . 7 5 Basis material . 7 6 Sampling . 8 7 Classification . 8 7.1 Service condition number 8 7.2 Coating classification code . 8 8 Heat treatment of steel 9 8.1 Stress relief before electroplating 9 8.2 Hydrogen embrittlement relief after
20、electroplating 9 9 Requirements for undercoats . 9 10 Requirements for coatings 9 10.1 Appearance 9 10.2 Thickness 10 10.3 Adhesion 10 10.4 Porosity 10 Determination of coating thickness . 11 Annex AA.0 Introductory notes . 11 A.0.1 Routine methods 11 A.0.2 Referee methods . 11 A.1 Measurement of lo
21、cal thickness . 12 A.1.1 Microscopical method 12 A.1.2 Beta backscatter method . 12 A.1.3 X-ray spectrometric method 12 A.1.4 Coulometric method 12 A.2 Measurement of average thickness . 12 Guidance notes . 13 Annex BB.1 Properties of the coating . 13 B.2 Properties and preparation of the basis mate
22、rial 14 B.2.1 Surface condition . 14 B.2.2 “Difficult” basis materials . 14 B.2.3 Aluminium, magnesium and zinc alloys 14 B.3 Electroplating practice . 14 B.3.1 Coating thickness requirements . 14 DIN EN ISO 2179:2016-08 EN ISO 2179:2016 (E) 3 European foreword The text of ISO 2179:1986 has been pre
23、pared by Technical Committee ISO/TC 107 “Metallic and other inorganic coatings” of the International Organization for Standardization (ISO) and has been taken over as EN ISO 2179:2016 by Technical Committee CEN/TC 262 “Metallic and other inorganic coatings” the secretariat of which is held by BSI. T
24、his 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 October 2016, and conflicting national standards shall be withdrawn at the latest by October 2016. Attention is drawn to the possibility that some of
25、 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. According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implemen
26、t this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Sl
27、ovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 2179:1986 has been approved by CEN as EN ISO 2179:2016 without any modification. DIN EN ISO 2179:2016-08 EN ISO 2179:2016 (E) 4 Foreword ISO (the International Organization for Standardiza
28、tion) is a worldwide federation of national standards 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
29、represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. Draft International Standards adopted by the technical committees are circulated to the member bodies for approval before their acceptance as International
30、Standards by the ISO Council. They are approved in accordance with ISO procedures requiring at least 75 % approval by the member bodies voting. International Standard ISO 2179 was prepared by Technical Committee ISO/TC 107, Metallic and other non-organic coatings. This second edition cancels and rep
31、laces the first edition (ISO 2179-1972), of which it constitutes a technical revision. Users should note that all International Standards undergo revision from time to time and that any reference made herein to any other International Standard implies its latest edition, unless otherwise stated. DIN
32、 EN ISO 2179:2016-08 EN ISO 2179:2016 (E) 5 Introduction This International Standard specifies requirements for electroplated coatings of the intermetallic compound SnNi of the approximate composition 65 % (m/m) tin and 35 % (m/m) nickel. Such coatings are generally recognized as being hard, wear-re
33、sistant and corrosion resistant. The coatings are intended for use on both ferrous and nonferrous basis metals and also on printed circuit boards. A classification scheme is included by which the nature of the basis metal and undercoat, if any, and the coating thickness can be defined. Annex B gives
34、 additional information as guidance to the user. It is essential that the purchaser should state the information itemized in 4.1 and, if appropriate, 4.2. Specifying ISO 2179 without this information is insufficient. DIN EN ISO 2179:2016-08 EN ISO 2179:2016 (E) 6 1 Scope and field of application Thi
35、s International Standard specifies requirements for electroplated coatings of the intermetallic compound SnNi, with a composition of approximately 65 % (m/m) tin and 35 % (m/m) nickel. It does not apply to a) threaded components; b) coatings on sheet, strip or wire in the unfabricated form, or on ar
36、ticles made from them; c) coatings on coil springs; d) electroplating of steels with tensile strength greater than 1 000 MPa1)(or of corresponding hardness), because such steels are subject to hydrogen embrittlement (see 8.2). 2 References ISO 1462, Metallic coatings Coatings other than those anodic
37、 to the basis metal Accelerated corrosion tests Method for the evaluation of the results ISO 1463, Metallic and oxide coatings Measurement of coating thickness Microscopical method ISO 2064, Metallic and other non-organic coatings Definitions and conventions concerning the measurement of thickness I
38、SO 2177, Metallic coatings Measurement of coating thickness Couiometric method by anodic dissolution ISO 2819, Metallic coatings on metallic substrates Electrodeposited and chemically deposited coatings Review of methods available for testing adhesion ISO 2859, Sampling procedures and tables for ins
39、pection by attributes2)N1)ISO 3497, Metallic coatings Measurements of coating thickness X-ray spectrometric methods ISO 3543, Metallic and non-metallic coatings Measurements of thickness Beta backscatter method ISO 4519, Electrodeposited metallic coatings and related finishes Sampling procedures for
40、 inspection by attributes ISO 6988, Metallic and other non-organic coatings Sulfur dioxide test with general condensation of moisture 1) MPa = 1 N/mm22) At present at the stage of draft. N1)National footnote: ISO 2859 was published in 1999. DIN EN ISO 2179:2016-08 EN ISO 2179:2016 (E) 7 3 Definition
41、 significant surface: The part of the article covered or to be covered by the coating and for which the coating is essential for serviceability and/or appearance. (Definition taken from ISO 2064.) 4 Information to be supplied by the purchaser to the electroplater 4.1 Essential information The follow
42、ing information shall be supplied by the purchaser to the electroplater: a) the number of this International Standard; b) the nature of the basis material (see clause 5); c) the service condition number (see 7.1) or the classification code of the coating required (see 7.2); d) the significant surfac
43、e of the article to be electroplated indicated, for example, by drawings or by the provision of suitably marked samples; e) the sampling procedure to be adopted (see clause 6); f) the positions where unavoidable contact marks and other defects are acceptable (see 10.1); g) the method of adhesion tes
44、ting to be used (see 10.3). 4.2 Additional information The following additional information may be required and, if so, shall be specified by the purchaser: a) any heat treatment required (see clause 8); b) any requirements for porosity testing (see 10.4); c) any special requirements for undercoats
45、(see clause 9); d) a sample showing the required finish (see 10.1); e) any special pretreatment required; f) any special packaging requirements for plated components. 5 Basis material This International Standard specifies no requirements for the condition, finish or surface roughness of the basis ma
46、terial prior to electroplating (see B.2.1). DIN EN ISO 2179:2016-08 EN ISO 2179:2016 (E) 8 6 Sampling Sampling procedures are specified in ISO 2859 and ISO 4519. The method of sampling and acceptance levels shall be agreed between purchaser and supplier. 7 Classification 7.1 Service condition number
47、 The service condition number indicates the severity of the service conditions in accordance with the following scale: 4: exceptionally severe for example service outdoors in severe corrosive conditions 3: severe for example service outdoors in typical temperate conditions 2: moderate for example se
48、rvice indoors with some condensation 1: mild for example service indoors in dry atmospheres NOTE See 10.2, which gives guidance on the relation between service condition number and minimum thickness. When specifying the service condition number or coating classification code, it should be noted that
49、 tin-nickel alloy is brittle and liable to damage by impact. See also annex B. 7.2 Coating classification code The coating classification code shall consist of three parts, the first two of which shall be separated by an oblique stroke, as follows: a/b c where a indicates the chemical symbol for the basis metal (or for the main constituent if an alloy); b indicates the chemical symbol for the und
