1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN 2133:2010Aerospace series Cadmium plating of steels with specified tensile strength null 1 450 MPa, copper, copper alloys and nickel alloysBS EN 2133:2010 BRITISH STANDARDN
2、ational forewordThis British Standard is the UK implementation of EN 2133:2010. Itsupersedes BS EN 2133:1998, which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee ACE/65/-/4, Surface Finish and Protective Treatments forAerospace Purposes.A list of organizati
3、ons represented 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 2011 ISBN 978 0 580 71361 3 ICS 49.040 Compliance with a British Standard cannot
4、confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 28 February 2011. Amendments issued since publicationDate Text affectedBS EN 2133:2010EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 2133 October 2010
5、ICS 49.040 Supersedes EN 2133:1997English Version Aerospace series - Cadmium plating of steels with specified tensile strength 1 450 MPa, copper, copper alloys and nickel alloys Srie arospatiale - Cadmiage lectrolytique des aciers de rsistance 1 450 MPa, du cuivre, des alliages de cuivre et des alli
6、ages de nickel Luft- und Raumfahrt - Kadmieren von Sthlen mit einer Zugfestigkeit 1 450 MPa, von Kupfer, von Kupferlegierungen und von Nickellegierungen This European Standard was approved by CEN on 30 July 2010. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipula
7、te 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 to any CEN member. This European Standard ex
8、ists 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 versions. CEN members are the national standards
9、 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, Slovenia, Spain, Sweden, Switzerland and Unite
10、d 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 CEN national Members. Ref. No. EN 2133:2010: EB
11、S EN 2133:2010EN 2133:2010 (E) 2 Contents Page Foreword 31 Scope 42 Normative references 43 Purpose of process .44 Limitations of process use .55 Terms and definitions .56 Coating thickness 57 Symbols 58 Information for the processor 59 Condition of parts prior to the treatment 610 Process schedule
12、611 Post-treatment 712 Removal of the plating 713 Required characteristics .714 Test methods 815 Quality assurance 916 Designation . 10BS EN 2133:2010EN 2133:2010 (E) 3 Foreword This document (EN 2133:2010) has been prepared by the Aerospace and Defence Industries Association of Europe - Standardiza
13、tion (ASD-STAN). After enquiries and votes carried out in accordance with the rules of this Association, this Standard has received the approval of the National Associations and the Official Services of the member countries of ASD, prior to its presentation to CEN. This European Standard shall be gi
14、ven the status of a national standard, either by publication of an identical text or by endorsement, at the latest by April 2011, and conflicting national standards shall be withdrawn at the latest by April 2011. Attention is drawn to the possibility that some of the elements of this document may be
15、 the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 2133:1997. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implem
16、ent this European Standard: 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, Slovenia, Spain, Sweden, Swit
17、zerland and the United Kingdom. BS EN 2133:2010EN 2133:2010 (E) 4 1 Scope This European standard specifies the electrolytic cadmium plating of parts in steel of tensile strength Rm(max.) 1 450 MPa, copper, copper alloys and nickel alloys, whose temperature in service does not exceed 235 C. 2 Normati
18、ve references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 2828, Aerospace series Adhesion
19、test for metallic coatings by burnishing EN 2831, Aerospace series Hydrogen embrittlement of steels Test by slow bending EN 2832, Aerospace series Hydrogen embrittlement of steels Notched specimen test EN 9100, Quality management systems Requirements for Aviation, Space and Defense Organizations EN
20、ISO 1463, Metallic and oxide coatings Measurement of coating thickness Microscopical method (ISO 1463:2003) EN ISO 2082, Metallic and other inorganic coatings Electroplated coatings of cadmium with supplementary treatments on iron or steel (ISO 2082:2008) EN ISO 2177, Metallic coatings Measurement o
21、f coating thickness Coulometric method by anodic dissolution (ISO 2177:2003) EN ISO 2178, Non-magnetic coatings on magnetic substrates Measurement of coating thickness Magnetic method (ISO 2178:1982) EN ISO 2819, Metallic coatings on metallic substrates Electrodeposited and chemically deposited coat
22、ings Review of methods available for testing adhesion (ISO 2819:1980) EN ISO 3497, Metallic coatings Measurement of coating thickness X-ray spectrometric methods (ISO 3497:2000) EN ISO 9227, Corrosion tests in artificial atmospheres Salt spray tests (ISO 9227:2006) ISO 2859-1, Sampling procedures fo
23、r inspection by attributes Part 1: Sampling schemes indexed by acceptance quality limit (AQL) for lot-by-lot inspection ISO 4520, Chromate conversion coatings on electroplated zinc and cadmium coatings 3 Purpose of process To ensure protection against corrosion or to reduce the effects of galvanic c
24、oupling when assembling different materials, e.g. steel, aluminium or magnesium. BS EN 2133:2010EN 2133:2010 (E) 5 4 Limitations of process use Contact of cadmium plated parts with titanium, titanium alloys, fuels and fuel lines shall be avoided at temperatures 1 100 and 1 450 (190 to 230) 10 C, 1 h
25、 min. Carburized parts (130 to 150) 10 C, 6 h min. aStress relief is not required for fasteners which havent been cold worked or machined after the heat treatment operation. A slight discoloration of the surface by oxidation is admissible. When shot peening is specified, it shall be performed after
26、the stress relief operations. 10 Process schedule 10.1 Covering Component areas which according to the purchasers information must not be cadmium plated shall be covered by suitable means. 10.2 Surface pre-treatment Surface preparation means any method able to completely eliminate all surface contam
27、inations. Methods which may result in hydrogen loading of the material shall be avoided. 10.3 Nickel strike In order to ensure adhesion of the cadmium. nickel striking is applicable to corrosion resistant parts in steel, copper and copper alloys, nickel and nickel alloys. 10.4 Cadmium plating Cadmiu
28、m plating is performed without the addition of brighteners. The composition of the bath as well as the process parameters shall be chosen such that the requirements for the cadmium coating specified by this standard (see Clause 13) are met with the addition of wetting agents being permissible. Wetti
29、ng agents shall have no negative effect on the embrittlement behaviour. BS EN 2133:2010EN 2133:2010 (E) 7 11 Post-treatment 11.1 De-embrittlement De-embrittlement shall be carried out within 4 h after cadmium plating, in accordance with Table 2. Table 2 De-embrittlement Substrate Temperature aC Mini
30、mum duration ah Steels 1 100 MPa Rm(max.) 1 450 MPa (190 to 230) 10 C 23 Carburized parts (130 to 150) 10 C 23 Other materials Not required aOther conditions may be used subject to agreement between the processor and the purchaser.11.2 Chromating Unless otherwise specified, chromating shall be appli
31、ed. It shall be carried out after de-embrittlement, in accordance with ISO 4520, type B (yellow), class 2C. 12 Removal of the plating Both electrochemical and chemical processes may be applied. The de-metallizing variants used, however, shall not result in any roughening, pitting or embrittling of t
32、he base material or have a negative influence on its dimensions. NOTE No chemical de-metallizing processes should be chosen which could result in hydrogen loading of the workpieces. Unless this can be ensured, de-embrittlement in accordance with the provisions of Table 2 is required after de-metalli
33、zing. 13 Required characteristics 13.1 Appearance The surface shall be satin, uniform and free from rough, burnt or powdery areas; pits; exfoliations; blisters. In the case of chromate coating, the surface shall be of iridescent, gold or brass colour. BS EN 2133:2010EN 2133:2010 (E) 8 13.2 Adhesion
34、See 14.1.2. 13.3 Coating thickness See Clause 6. 13.4 Hydrogen embrittlement of steels Unless otherwise specified, these tests are applicable to steels of tensile strength Rm 1 100 MPa. No rupture within 200 h (EN 2832) or final ductility 94 % of the initial ductility (EN 2831). 13.5 Corrosion resis
35、tance After exposure to salt spray (EN ISO 9227): on chromated cadmium plated parts, white cadmium salts shall not appear within 96 h. Corrosion of the substrate shall not occur within 336 h; on non-chromated cadmium plated parts, corrosion of the substrate shall not occur within 240 h. 14 Test meth
36、ods 14.1 For process approval 14.1.1 Appearance Visual inspection 14.1.2 Adhesion See EN 2828 or EN ISO 2819 (grid test). 14.1.3 Coating thickness See EN ISO 1463, EN ISO 2082, EN ISO 2177, EN ISO 2178 and EN ISO 3497 (X-ray). The choice of the method shall be agreed between the processor and the pu
37、rchaser. In cases of dispute, the method specified in EN ISO 1463 is the reference method. 14.1.4 Hydrogen embrittlement See EN 2832 and EN 2831. The choice of the method shall be agreed between the processor and the purchaser. BS EN 2133:2010EN 2133:2010 (E) 9 If agreed with the purchaser, the tens
38、ile strength of the samples may differ from that of the parts to be treated and from Rm 1 450 MPa. Other methods may be used subject to the purchasers agreement. 14.1.5 Corrosion resistance EN ISO 9227, in a 5 % solution of sodium chloride, on the following samples: a) Material: heat-treated steel w
39、ith a mass fraction of carbon of between 0,1 % and 0,18 % 2 samples. b) Minimum dimensions Thickness: 0,8 mm; Length: 120 mm; Width: 60 mm. c) Coating thickness 10 m to 20 m. 14.2 For acceptance of parts 14.2.1 Appearance See 14.1.1. 14.2.2 Adhesion (if agreed) See 14.1.2. 14.2.3 Coating thickness S
40、ee 14.1.3. 15 Quality assurance 15.1 Approval of the processor See EN 9100. 15.2 Process approval The processor shall carry out the plating on pre-production parts and/or samples determined by agreement between the processor and the purchaser; the tests specified in this standard, unless otherwise a
41、greed between the processor and the purchaser. The process schedule shall not be changed without the previous agreement from the purchaser. BS EN 2133:2010EN 2133:2010 (E) 10 15.3 Acceptance During production, the tests may be carried out on parts and/or samples coated under the same conditions as t
42、he parts. The appearance test (see 14.2.1) shall be performed on the whole batch, unless otherwise specified. Unless otherwise specified, the adhesion tests (see 14.2.2) shall be carried out on one part or one sample per batch. Unless otherwise specified, the coating thickness (see 14.2.3) shall be
43、measured by sampling in accordance with ISO 2859-1: code letter of the sample size, Table 1, special inspection level S-3; single sampling plan for more stringent inspection; acceptable quality level (AQL) 1,5. The frequency and nature of the other tests shall be determined by agreement between the
44、processor and the purchaser. 15.4 Reprocessing Reprocessing of parts depends on the material and may only be carried out following confirmation by the purchaser. 16 Designation EXAMPLE Description block CADMIUM PLATING Identity block EN2133C Number of this standard Coating thickness class (see Claus
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