1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS ISO 4384-2:2011Plain bearings Hardnesstesting of bearing metalsPart 2: Solid materialsBS ISO 4384-2:2011 BRITISH STANDARDNational forewordThis British Standard is the UK imple
2、mentation of ISO 4384-2:2011.The UK participation in its preparation was entrusted to TechnicalCommittee MCE/12, Plain bearings.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of
3、 a contract. Users are responsible for its correctapplication. BSI 2011ISBN 978 0 580 73840 1ICS 21.100.10Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 31 May 20
4、11.Amendments issued since publicationDate Text affectedBS ISO 4384-2:2011Reference numberISO 4384-2:2011(E)ISO 2011INTERNATIONAL STANDARD ISO4384-2Second edition2011-05-01Plain bearings Hardness testing of bearing metals Part 2: Solid materials Paliers lisses Essai de duret des matriaux antifrictio
5、n Partie 2: Matriaux massifs BS ISO 4384-2:2011ISO 4384-2:2011(E) COPYRIGHT PROTECTED DOCUMENT ISO 2011 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfi
6、lm, without permission in writing from either ISO at the address below or ISOs member body in the country of the requester. ISO copyright office Case postale 56 CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyrightiso.org Web www.iso.org Published in Switzerland ii ISO 2011
7、 All rights reservedBS ISO 4384-2:2011ISO 4384-2:2011(E) ISO 2011 All rights reserved iiiForeword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out
8、 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, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO col
9、laborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare International S
10、tandards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements
11、 of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 4384-2 was prepared by Technical Committee ISO/TC 123, Plain bearings, Subcommittee SC 2, Materials and lubricants, their properties, characteristics, test meth
12、ods and testing conditions. This second edition cancels and replaces the first edition (ISO 4384-2:1982), of which it constitutes a minor revision. ISO 4384 consists of the following parts, under the general title Plain bearings Hardness testing of bearing metals: Part 1: Multilayer bearings materia
13、ls Part 2: Solid materials BS ISO 4384-2:2011BS ISO 4384-2:2011INTERNATIONAL STANDARD ISO 4384-2:2011(E) ISO 2011 All rights reserved 1Plain bearings Hardness testing of bearing metals Part 2: Solid materials 1 Scope This International Standard specifies parameters for the hardness testing of solid
14、materials for plain bearings made from cast and wrought copper and aluminium alloys by machining and forming their wrought products and ingots, and of tin-based ingots. It represents a supplement to existing International Standards on hardness testing and, therefore, includes only the extensions and
15、 restrictions for observation compared to those publications. Owing to the heterogeneous structural composition of the majority of these bearing metals, a Brinell test is used. 2 Specimen The surface of the specimen in the test area shall be metallic bright and conditioned in such a way that a satis
16、factory measurement of the test impression is possible. During the preparation of the specimens, it shall be ensured that the material is not heated. The testing of cast and wrought copper and aluminium alloys shall always be carried out on turned or flied and subsequently prepared surfaces, with th
17、e exception of hot-pressed parts. If the manufacturing method permits, the specimens shall be carefully polished. In the case of lead and tin alloys with a roughness value of Rt 6 m, the polishing may be carried out with abrasive paper of grain size 240 and in the case of copper and aluminium alloys
18、 with a roughness value of Rt 4 m, with abrasive paper of grain size 320 and with a suitable lubricant. BS ISO 4384-2:2011ISO 4384-2:2011(E) 2 ISO 2011 All rights reserved3 Procedure The test conditions shall be in accordance with Table 1. Table 1 Test conditions Thickness of bearing material Test t
19、emperature Form and nature of bearing material mm Test conditionaC Bars, tubes based on Cu and Al Preferably: HBW 2,5/62,5/10 Or, if the test surface is too small: HBW 1/10/10 In the case of cast alloys with larger porosity: HBW 5/250/10 Ingots based on Sn 7 HBW 10/250/180 Ingots based on Cu and Al
20、7 HBW 10/1000/10 18 to 24 a EXAMPLE HBW 5/250/10 = Brinell hardness determined with a ball of 5 mm in diameter and with a test force of 2 452 N applied for 10 s.BS ISO 4384-2:2011ISO 4384-2:2011(E) ISO 2011 All rights reserved 3Bibliography 1 ISO 6506-1, Metallic materials Brinell hardness test Part
21、 1: Test method BS ISO 4384-2:2011ISO 4384-2:2011(E) ICS 21.100.10 Price based on 3 pages ISO 2011 All rights reserved This page deliberately left blankBSI is the independent national body responsible for preparing British Standardsand other standards-related publications, information and services.
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