EN ISO 9717-2017 en Metallic and other inorganic coatings - Phosphate conversion coating of metals.pdf

1、BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06Metallic and other inorganic coatings - Phosphate conversion coating of metals (ISO 9717:2017)BS EN ISO 9717:2017National forewordThis British Standard is the UK implementation of EN ISO 9717:2017. It is identical to IS

2、O 9717:2017. It supersedes BS EN ISO 9717:2013, which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee STI/33, Electrodeposited and related coatings.A list of organizations represented on this committee can be obtained on request to its secretary.This publica

3、tion does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2017 Published by BSI Standards Limited 2017ISBN 978 0 580 89763 4ICS 25.220.20Compliance with a British Standard cannot confer immunity f

4、rom legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 November 2017.Amendments/corrigenda issued since publicationDate Text affectedBRITISH STANDARDBS EN ISO 9717:2017EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN ISO 97

5、17October 2017ICS 25.220.20 Supersedes EN ISO 9717:2013EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGCEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2017 CEN Ref. No. EN ISO 9717:2017: EAll rights of exploitation in any form and by

6、 any means reserved worldwide for CEN national MembersMetallic and other inorganic coatings - Phosphate conversion coating of metals (ISO 9717:2017)Revtements mtalliques et autres revtements inorganiques - Couches de conversion au phosphate sur mtaux (ISO 9717:2017)Metallische und andere anorganisch

7、e berzge - Phosphatberzge auf Metallen (ISO 9717:2017)This European Standard was approved by CEN on 21 September 2017.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without a

8、ny 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 Standard exists in three official versions (English, French, German). A version in any other langua

9、ge 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 national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark,

10、Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom.English VersionE

11、N ISO 9717:2017 (E)European forewordThis document (EN ISO 9717:2017) has been prepared by Technical Committee ISO/TC 107 “Metallic and other inorganic coatings” in collaboration with Technical Committee CEN/TC 262 “Metallic and other inorganic coatings, including for corrosion protection and corrosi

12、on testing of metals and alloys” the secretariat of which is held by BSI.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 April 2018, and conflicting national standards shall be withdrawn at the la

13、test by April 2018.Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN shall not be held responsible for identifying any or all such patent rights.This document supersedes EN ISO 9717:2013 .According to the CEN-CENELEC Internal Re

14、gulations, 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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland,

15、 Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.Endorsement noticeThe text of ISO 9717:2017 has been approved by CEN as EN ISO 9717:2017 without any modification.2BS EN

16、 ISO 9717:2017ISO 9717:2017(E)Foreword ivIntroduction v1 Scope . 12 Normative references 13 Terms and definitions . 14 Information to be supplied by the purchaser to the processor . 15 Coating types and their importance . 25.1 Coating types 25.2 Designation of conversion coating . 26 Requirements 36

17、.1 Appearance 36.2 Coating mass per unit area . 36.3 Post treatments 36.4 Correlation of coating thickness and area-related mass . 47 Heat treatment . 4Annex A (normative) Determination of phosphate conversion coating resistance to neutral salt spray test . 5Annex B (informative) General information

18、. 8Annex C (informative) Identification of phosphate conversion coating .11Bibliography .13 ISO 2017 All rights reserved iiiContents PageBS EN ISO 9717:2017ISO 9717:2017(E)ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO mem

19、ber 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 organizations, governmen

20、tal 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 further maintenance

21、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 (see www.iso.org/directives).Attention is

22、 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 Introduction and/or

23、 on the ISO list of patent declarations received (see 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.For an explanation on the voluntary nature of standards, the meaning of ISO specific terms and expr

24、essions related to conformity assessment, as well as information about ISOs adherence to the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the following URL: www.iso.org/iso/foreword.html.This document was prepared by Technical Committee ISO/TC 107, Metallic

25、and other inorganic coatings, Subcommittee SC 8, Chemical conversion coatings.This third edition cancels and replaces the second edition (ISO 9717:2010 ), which has been technically revised. The following changes have been made: the Scope has been clarified; the Normative references have been update

26、d; the Terms and definitions have been replaced by a reference to ISO 2080 ; Clause 4 has been revised; the terms in Clause 5 have been revised; requirements for the phosphate layer have been revised; statements on corrosion resistance have been shifted to a new Annex A; Annex B on salt spray testin

27、g has been revised; Annex C to the properties of the phosphate layers has been revised.iv ISO 2017 All rights reservedBS EN ISO 9717:2017ISO 9717:2017(E)IntroductionPhosphate conversion coatings are applied to ferrous metals, aluminium, zinc and their alloys (including zinc- and zinc-alloy-plated st

28、eel, cadmium and their alloys) either as an end finish or as an intermediate layer for other coatings. They are intended to impart corrosion resistance, improve adhesion to paints and other organic finishes, facilitate cold-forming operations, such as wire drawing, tube drawing and extrusion, and mo

29、dify surface frictional properties so as to facilitate sliding.Phosphate conversion coatings are produced by treatment with solutions, the main constituents of which are the appropriate dihydrogen orthophosphates. These coatings are applied principally to ferrous materials and zinc, and differ in co

30、ating mass per unit area and apparent density, depending on the construction material and surface condition of the components, previous mechanical and chemical treatment of the components, and processing conditions for phosphating.All phosphate conversion coatings are more or less porous but can be

31、sealed substantially by subsequent sealant processes. ISO 2017 All rights reserved vBS EN ISO 9717:2017This page deliberately left blankMetallic and other inorganic coatings - Phosphate conversion coating of metals (ISO 9717:2017)WARNING This document calls for the use of substances and/or procedure

32、s that could be injurious to health if adequate safety measures are not taken. This document does not address any health hazards, safety or environmental matters associated with its use. It is the responsibility of the producers, purchasers and/or users of this document to establish appropriate heal

33、th, safety and environmentally acceptable practices and take appropriate actions.1 ScopeThis document specifies a process for the confirmation of requirements for phosphate coatings which are usually destined for application on ferrous materials, zinc, cadmium and their alloys (see Annex B).2 Normat

34、ive referencesThe following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) ap

35、plies.ISO 2080 , Metallic and other inorganic coatings Surface treatment, metallic and other inorganic coatings VocabularyISO 3892 , Conversion coatings on metallic materials Determination of coating mass per unit area Gravimetric methodsISO 4519 , Electrodeposited metallic coatings and related fini

36、shes Sampling procedures for inspection by attributesISO 9227 , Corrosion tests in artificial atmospheres Salt spray tests3 Terms and definitionsFor the purposes of this document, the terms and definitions given in ISO 2080 apply.ISO and IEC maintain terminological databases for use in standardizati

37、on at the following addresses: IEC Electropedia: available at http:/www.electropedia.org/ ISO Online browsing platform: available at http:/www.iso.org/obp 4 Information to be supplied by the purchaser to the processorThe following information shall be provided by the purchaser.a) A description of th

38、e coating according to this document, i.e. ISO 9717 (see 5.2).b) In cases of phosphating steel parts with tensile strength 1 000 MPa, possibly also locally restricted, e.g. for case-hardened or cold-formed structures or in weld seam areas, the safety against brittle fracture (hydrogen embrittlement)

39、 is of primary importance. The phosphatising process shall be carried out in such a manner that any damage caused by hydrogen-induced brittleness is excluded. Technical measures to minimize the risk of hydrogen-induced brittleness shall be defined by the user and provided by the supplier/customer. H

40、eat treatment in accordance INTERNATIONAL STANDARD ISO 9717:2017(E) ISO 2017 All rights reserved 1BS EN ISO 9717:2017ISO 9717:2017(E)with any recommendations cannot guarantee full freedom from hydrogen embrittlement. The performance of the heat treatment shall be demonstrated by the supplier.c) The

41、sampling procedure, the acceptable quality limit or any other requirements and tests that deviate from ISO 4519 .d) The surface treatment or phosphating.e) The appearance of the surface.f) The corrosion resistance.g) The quality, appearance and condition of basis metal, if any of these properties af

42、fect the usability and/or appearance of coatings.h) Where applicable, technical measures to minimize the risk of hydrogen induced brittleness as defined by the user.5 Coating types and their importance5.1 Coating typesThe conversion coating shall be declared according to Table 1.Table 1 Declaration

43、of conversion coatingsElements detected Coating typeIron (II)ManganeseZinc (no Calcium)Zinc and CalciumFephMnphZnphZnCaphThere are other coating types of zinc phosphate that are altered because of the build-in of iron and/or nickel and/or manganese. This altered metal is usually present as a double

44、salt, such as Zn2ME(PO4)2x 4 H2O, whereby ME can be Fe(II), Ni or Mn. Zn will continue to be the main metal element of those coatings, which do not have separate markings in order to avoid confusion. It should also be noted that metal taken from the basis material is included in the conversion coati

45、ng.Information for coating characteristics can be found in Annex B and the identification methods can be found in Annex C.5.2 Designation of conversion coatingThe designation of the conversion coating shall consist of the following information:a) number of this document, i.e. ISO 9717, and the desig

46、nation “phosphate coating”;b) followed by a hyphen;c) designation of basis material: by means of the material chemical symbol (or the symbol of the primary alloy components);d) followed by a solidus(/);e) a symbol describing the type of coating;f) followed by a solidus (/);2 ISO 2017 All rights rese

47、rvedBS EN ISO 9717:2017ISO 9717:2017(E)g) a symbol, which indicates the function of the conversion coating as follows:1) r = adhesion promoter and/or corrosion protection;2) z = simplification of cold forming;3) g = reduction of friction;4) e = electrical insulation;h) followed by a solidus (/);i) a

48、 number, which indicates the surface-related mass per square metre with a measurement uncertainty of 30 %.If the phosphate coating receives a supplementary treatment, the following information shall be added to the designation:j) solidus (/)k) a symbol, which defines the supplementary treatment (see

49、 Table 2).Repeat this process if necessary.Solidi (/) shall be used to separate data fields in the designation corresponding to the different sequential processing steps. Double separators or solidi indicate that a step in the process is either not required or has been omitted (see ISO 27830 ).6 Requirements6.1 AppearanceZinc phosphate, zinc calcium phosphate and manganese phosphate coatings shall evenly cover the metal surface and shall not show any white stains, corrosion products or fingerprints.NOTE Slight fluctuat