1、BRITISH STANDARD BS EN 10244-6:2001 Steel wire and wire products - Non-ferrous metallic coatings on steel wire - Part 6: Copper, bronze or brass coatings The European Standard EN 10244-6:2001 has the status of a British Standard ICs 25.220.40; 77.140.65 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PE
2、RMITTED BY COPYRIGHT LAW STD-BSI BS EN 10294-6-ENGL 2001 Lb24bb9 090932b 357 BS EN 10244-62001 Amd. No. National foreword Date Comments This British Standard is the official English language version of The UK participation in its preparation was entrusted to Technical Committee ISE/26, Steel wire, w
3、hich has the responsibility to: EN 10244-62001. - - aid enquirers to understand the text; present to the responsible European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promul
4、gate them in the UK. - A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the s
5、ection entitled “International Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue . A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct applicat
6、ion, Compliance with a British Standard does not of itself confer immunity from legal obligations. This British Standard, having been prepared under the direction of the Engineering Sector Committee. was Summary Of pages This document comprises a front cover, an inside front cover, the EN title page
7、, published under the authority of the Standards Committee and comes into effect on pages 2 to 7 and a back cover. The BSI copyright date displayed in this document indicates when the 15 May 2001 document was last issued. 8 BSI 05-2001 I I ISBN O 580 37147 6 STD.BSI BS EN 10244-b-ENGL 2001 1624669 0
8、909327 293 EUROPEAN STANDARD EN 10244-6 NORME EUROPENNE EUROPISCHE NORM March 2001 ICs 25.220.40 English version Steel wire and wire products - Non-ferrous metallic coatings on steel wire - Part 6: Copper, bronze or brass coatings Fils et produits trfils en acier - Revtements mtalliques non ferreux
9、sur fils dacier - Pare 6: Revtements de cuivre, bronze ou laiton Stahldraht und Drahterzeugnisse - berzge aus Nichteisenmetall auf Stahldraht - Teil 6: Uberzge aus Kupfer, Bronze oder Messing This European Standard was approved by CEN on 21 January 2001. CEN members are bound to comply with the CEWC
10、ENELEC 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 Management Centre or to any
11、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 Management Centre has the same status as the official versions. CEN m
12、embers are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMITE EUROPEEN DE NORMAL
13、ISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels O 2001 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 10244-6:2001 E Page 2 EN 10244-612001 Contents Page Foreword . 3 1 2 3 4 4.1 4.2 4
14、.3 4.4 5 5.1 5.1.1 5.1.2 5.2 5.2.1 5.2.2 5.2.3 5.3 5.3.1 5.3.2 Scope 4 Normative reference 4 Terms and definitions . 4 Requirements relating to coating 5 Coating mass . 5 General . 5 Porosity 5 Test conditions 5 Samples 5 General . 5 Length of samples . 5 Determination of mass of coating . 5 General
15、 . 5 Gravimetric method 5 Porosity 6 Material . 5 Use of chemical methods for determining coating mass . 6 Principle . 6 Determination of the porosity 6 STDOBSI BS EN 10244-h-ENGL 2001 Lb24b69 0909329 Obb Page 3 EN 10244-612001 Foreword This European Standard has been prepared by Technical Committee
16、 ECISSTTC 30 “Steel wires“, 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 September 2001, and conflicting national standards shall be withdrawn at the la
17、test by September 2001. This European Standard for non-ferrous metallic coating on steel wire is made up of the following parts: Part 1 : General principles Part 2 : Zinc and zinc alloy coatings Part 3 : Aluminium coatings Part 4 : Tin coatings Patt 5 : Nickel coatings Part 6 : Copper, bronze and br
18、ass coatings According to the CENKENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands,
19、 Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. STD-BSI BS EN 10244-h-ENGL 2001 1624hh9 0909330 BBB Page 4 EN 10244-612001 1 Scope This part of this European Standard specifies the requirements for mass; other properties and testing of copper, bronze and brass coatings on steel
20、 wire and steel wire products. 2 Normative reference This European Standard incorporates by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subs
21、equent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies (including amendments). EN 10244-1, Steel wire and wire products - No
22、n-ferrous metallic coatings on steel wire - Part 1: General principles EN 10244-4, Steel wire and wire products - Non ferrous metallic coatings on steel wire - Part 4: Tin coatings on steel wire 3 Terms and definitions For the purposes of this European standard the following terms and definitions ap
23、ply. 3.1 wire with copper, bronze or brass coating wire to which a copper, bronze or brass coating has been applied either by chemical conversion by electrolysis or by an extrusion or by cladding process 3.1.1 wire with copper coating wire coated with essentially pure unalloyed copper 3.1.2 wire wit
24、h bronze coating wire coated with an alloy consisting essentially of copper and tin in specified proportions 3.1.3 wire with brass coating wire coated with an alloy consisting essentially of copper and zinc in specified proportions 3.2 mass of coating the mass of copper, bronze or brass coating per
25、unit of surface area is expressed in grams per square meter. In some cases the mass of coating is characterised by its thickness measured in radial direction STD-BSI BS EN 10244-h-ENGL 2001 1624669 0909331 714 Page 5 EN 10244-612001 4 Requirements relating to coating 4.1 Material Copper coating shal
26、l contain at least 98 % copper. For bronze or brass material the permissible variation of the alloy composition shall be specified at the enquiry and order. 4.2 Coating mass The coating mass, when required, shall be agreed at the time of enquiry and order or according to the product standard. 4.3 Ge
27、neral See requirements in EN 10244-1. 4.4 Porosity If the order specifications require it, a test shall be carried out to establish the presence of small areas of porosity in the coating. In this case porosity does not mean a degree of surface roughness but extremely fine discontinuities in the coat
28、ing giving direct access to the base metal. 5 Test conditions 5.1 Samples 5.1.1 General See the general requirements in EN 10244-1. 5.1.2 Length of samples The length of the samples shall be sufficient to allow the various tests to be carried out. 5.2 Determination of mass of coating 5.2.1 General T
29、he mass of the coating shall be determined by first stripping the coating. Then the amount of coating is determined by measuring the difference in weight (gravimetric method) before and after stripping or by determining chemically the amount of coating in the stripping solution. The sample length sh
30、all be in accordance with Table 1 in EN 10244-4. 5.2.2 Gravimetric method 5.2.2.1 Procedure for determining the coating mass If necessary, degrease the sample with a suitable solvent. Weigh the sample to an accuracy of 0,l mg (mass m,). STDSBSI BS EN L0244-b-ENGL 2001 Lb24bb9 0909332 b50 = Page 6 EN
31、 10244-612001 Strip the samples in concentrated ammonia (NH3) diluted directly before use with an equal volume of (NH4)&08 1 O % analytic purity (ammonium thiosulfate). After stripping, rinse the samples, dry them and once again weigh them to the same accuracy (mass Q). If the mass difference is les
32、s than 10 mg, repeat the test with a suitably longer sample. Determine the diameter d of the wire. 5.2.2.2 The calculation shall be carried out in accordance with EN 10244-1 or determined using the following formula : Calculation of mass of coating (m, -rn,)xdx1962 m2 Coating mass (g /m2)= 5.2.3 Use
33、 of chemical methods for determining coating mass Using a know volume of stripping solution, it is possible to determine i, ,e amount of coating in the solution after stripping, which enables the determination of the mass of coating dissolved and hence the mass of coating per unit of surface area. T
34、his can be done by the atomic absorption spectrometer, by colorimetry or any other appropriate method. Some of these methods also permit the checking of the type of alloy coating on the wire. 5.3 Porosity 5.3.1 Principle Copper and copper alloys covering the steel provide a good protection against c
35、hemical attack. Therefore porosities in the coating, leaving the bare steel in contact with the outside atmosphere, are weak points against corrosion. The porosity test is designed to give an indication of the quality of the coating and the degree of porosity of the material. This is achieved by imm
36、ersing a sample of the coated wire in a solution of diluted hydrochloric acid. In doing so, the acid coming in contact with the bare steel surface will dissolve the iron. 5.3.2 Determination of the porosity Bend samples of 30 cm long so that they can easily be immersed in a recipient of 1 litre. In
37、the case of wire of a size 0,50 mm or finer use a continuous length of 2 m wound to a coil of about 10 cm diameter. Degrease the samples with a suitable organic solvent, dry for 10 min at 75 OC, cool to ambient temperature and weigh to 0,l mg precision (m, in 9). Cover the cut ends of the sample wit
38、h a protective layer. Prepare a solution of 500 ml HCI 1 N in a beaker of 800 ml and heat gently to 40 OC f 5 OC in waterbath. Stir with a magnetic stirrer at 500 Vmin and introduce the samples. After 15 min remove the samples and rinse with deionized water. STD-BSI BS EN 10244-6-ENGL 2003 9 Lb24669
39、 0909333 597 9 Page 7 EN 10244-612001 Pour the solution into a graduated beaker of 1 I. Rinse the empty beaker with some deionized water, then add to the solution. Add 50 ml pure acetic acid, let cool to 20 “C 5 OC and add deionized water to the mark of 1 I. Shake thoroughly and determine the amount
40、 of Fe ppm by atomic absorption spectrometer (a). The degree of porosity of the coating is expressed by the ratio mg Fe/m2 wire. The concentration of Fe in the solution correlates to the surface of the samples. ax d x 1962 The porosity factor (Pl is P = Where a : The concentration of iron in ppm d:
41、wire diameter in mm ml : The mass of the sample before the test in grams STD-BSI BS EN L0244-b-ENGL 2001 Lb24bb9 0909334 423 = BS EN 10244-6:2 O O 1 BSI 389 Chiswick High Road London w4 4AL BSI - British Standards Institution BSI is the independent national body responsible for preparing British Sta
42、ndards. It presents the UK view on standards in Europe and at the international level. It is incorporated by Royal Charter. Revisions British Standards are updated by amendment or revision. Users of British Standards should make sure that they possess the latest amendments or editions. It is the con
43、stant aim of BSI to improve the quality of our products and services. We would be grateful if anyone finding an inaccuracy or ambiguity while using this British Standard would inform the Secretary of the technical committee responsible, the identity of which can be found on the inside front cover. T
44、el: 020 8996 9000. Fax: 020 8996 7400. BSI offers members an individual updating service called PLUS which ensures that subscribers automatically receive the latest editions of standards. Buying standards Orders for all BSI, international and foreign standards publications should be addressed to Cus
45、tomer Services. Tel: 020 8996 9001. Fax: 020 8996 7001. Standards are also available from the BSI website at httu:/www.bsi-. In response to orders for international standards, it is BSI policy to supply the BSI implementation of those that have been published as British Standards, unless otherwise r
46、equested. Information on standards BSI provides a wide range of information on national, European and international standards through its Library and its Technical Help to Exporters Service. Various BSI electronic information services are also available which give details on all its products and ser
47、vices. Contact the Information Centre. Tel: 020 8996 7111. Fax: 020 8996 7048. Subscribing members of BSI are kept up to date with standards developments and receive substantial discounts on the purchase price of standards. For details of these and other benefits contact Membership Administration. T
48、el: 020 8996 7002. Fax: 020 8996 7001. Further information about BSI is available on the BSI website at httD:/www.bsi-. Copyright Copyright subsists in all BSI publications. BSI also holds the copyright, in the UK, of the publications of the international standardization bodies. Except as permitted
49、under the Copyright, Designs and Patents Act 1988 no extract may be reproduced, stored in a retrieval system or transmitted in any form or by any means - electronic, photocopying, recording or otherwise - without prior written permission from BSI. This does not preclude the free use, in the course of implementing the standard, of necessary details such as symbols, and size, type or grade designations. If these details are to be used for any other purpose than implementation then the prior written permission of BSI must be obtained. If permission
copyright@ 2008-2019 麦多课文库（www.mydoc123.com）网站版权所有
备案/许可证编号：苏ICP备17064731号-1