1、raising standards worldwide NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW BSI Standards Publication BS ISO 8693:2011 Tools for moulding Flat ejector pinsBS ISO 8693:2011 BRITISH STANDARD National foreword This British Standard is the UK implementation of ISO 8693:2011. It su
2、persedes BS ISO 8693:1998 which is withdrawn. The UK participation in its preparation was entrusted to Technical Committee MTE/12, Tools for pressing and moulding. A list of organizations represented on this committee can be obtained on request to its secretary. This publication does not purport to
3、include all the necessary provisions of a contract. Users are responsible for its correct application. BSI 2011 ISBN 978 0 580 73921 7 ICS 25.120.30 Compliance with a British Standard cannot confer immunity from legal obligations. This British Standard was published under the authority of the Standa
4、rds Policy and Strategy Committee on 30 September 2011. Amendments issued since publication Date Text affectedBS ISO 8693:2011Reference number ISO 8693:2011(E) ISO 2011INTERNATIONAL STANDARD ISO 8693 Third edition 2011-09-15 Tools for moulding Flat ejector pins Outillage de moulage jecteurs lames BS
5、 ISO 8693:2011 ISO 8693:2011(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 microfilm, without permission in writing
6、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 All rights reservedBS ISO 8693:20
7、11 ISO 8693:2011(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 through ISO technical committees. Ea
8、ch 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 collaborates closely with the Internatio
9、nal 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 Standards. Draft International Standar
10、ds 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 of this document may be the subject
11、of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 8693 was prepared by Technical Committee ISO/TC 29, Small tools, Subcommittee SC 8, Tools for pressing and moulding. This third edition cancels and replaces the second edition (ISO 8693:1998), of w
12、hich it constitutes a minor revision. In particular, the indication of surface textures has been updated in accordance with ISO 1302:2002. BS ISO 8693:2011BS ISO 8693:2011 INTERNATIONAL STANDARD ISO 8693:2011(E) ISO 2011 All rights reserved 1Tools for moulding Flat ejector pins 1 Scope This Internat
13、ional Standard specifies the dimensions and tolerances, in millimetres, of flat ejector pins which are used in compression and injection moulds and in die casting dies. It also gives material guidelines and hardness requirements, and specifies the designation of flat ejector pins. Ejector pins with
14、cylindrical head are specified in ISO 6751; shouldered ejector pins are specified in ISO 8694. 2 Dimensions The dimensions of flat ejector pins shall be in accordance with the indications of Figure 1 and Tables 1 and 2. BS ISO 8693:2011 ISO 8693:2011(E) 2 ISO 2011 All rights reservedSurface roughnes
15、s values in micrometres Key 1 edges without burrs 2 gauge plane 2 3 gauge plane 1 aRa 0,8 for hot worked steel. Ra 0,4 for alloyed cold worked steel. bIt is permitted to provide the ejector pin with an alternative surface roughness or a small variation on the diameter, D 1 , for a certain length. cS
16、ee note a to Tables 1 and 2. Figure 1 Flat ejector pins BS ISO 8693:2011 ISO 8693:2011(E) ISO 2011 All rights reserved 3Table 1 Flat ejector pins of hot worked steel Dimensions in millimetres D 1h11 D 20 0,2 a a0 0,015 b a0 0,015 L 1 2 0 H 0 0,05 R 0,2 0 63 80 100 125 160 200 250 315 400 L 2 1 2 32
17、40 50 63 80 100 125 160 200 4 8 0,8 3,5 X X X X 3 0,3 1 X X X X 4,2 3,8 X X X X 4 1,2 3,5 X X X X 4,2 3,8 X X X X 5 10 1 4,5 X X X X 1,2 X X X 6 12 1,5 5,5 X X X X 5 0,5 2 X X X 8 14 1,5 7,5 X X X X 2 X X X 10 16 1,5 9,5 X X X 2 X X X X 12 18 2 11,5 X X X X 7 0,8 2,5 X X X X 16 22 2 15,5 X X X X 2,5
18、 X X X X aThese limit dimensions apply to 100 mm length. For lengths greater than 100 mm, the limit deviations shall be multiplied by (L 1 L 2 ) 10 -2 . The dimensional tolerance is at its maximum at gauge plane 2. BS ISO 8693:2011 ISO 8693:2011(E) 4 ISO 2011 All rights reservedTable 2 Flat ejector
19、pins of alloyed cold worked steel Dimensions in millimetres D 1h11 D 2 0 0,2 a a0 0,015 b a0 0,015 L 1 2 0 H 0 0,05 R 0,2 0 63 80 100 125 160 200 250 315 L 2 1 2 32 40 50 63 80 100 125 160 4 8 0,8 3,5 X X X X 3 0,3 1 X X X X 4,2 3,8 X X X X 4 1,2 3,5 X X X X 4,2 3,8 X X X X 5 10 1 4,5 X X X X 1,2 X
20、X X 6 12 1,5 5,5 X X X X 5 0,5 2 X X X 8 14 1,5 7,5 X X X X 2 X X X 10 16 1,5 9,5 X X X 2 X X X 12 18 2 11,5 X X X 7 0,8 2,5 X X X aThese limit dimensions apply to 100 mm length. For lengths greater than 100 mm, the limit deviations shall be multiplied by (L 1 L 2 ) 10 -2 . The dimensional tolerance
21、 is at its maximum at gauge plane 2. 3 Material and hardness Flat ejector pins shall be made of hot worked steel or alloyed cold worked steel. The hardness of the shaft and head shall conform to the indication of Table 3. BS ISO 8693:2011 ISO 8693:2011(E) ISO 2011 All rights reserved 5Table 3 Materi
22、al and hardness Material Hardness aShaft Head Hot worked steel Min. 1 400 MPa core strength min. 950 HV 0,3 (45 5) HRC hot-forged Alloyed cold worked steel (60 2) HRC aThe point at which hardness is measured is left to the manufacturers discretion. 4 Designation Flat ejector pins according to this I
23、nternational Standard shall be designated by: a) “Flat ejector pin”; b) reference to this International Standard, i.e. ISO 8693; c) the width, a, and thickness, b, in millimetres; d) the length, L 1 , in millimetres; e) the material. EXAMPLE A flat ejector pin with width a = 0,8 mm, thickness b = 3,
24、5 mm, length L 1= 63 mm and made of hot worked steel is designated as follows: Flat ejector pin ISO 8693 - 0,8 3,5 - 63 - Hot worked steel BS ISO 8693:2011 ISO 8693:2011(E) 6 ISO 2011 All rights reservedBibliography 1 ISO 1302:2002, Geometrical Product Specifications (GPS) Indication of surface text
25、ure in technical product documentation 2 ISO 6751, Tools for moulding Ejector pins with cylindrical head 3 ISO 8694, Tools for moulding Shouldered ejector pins BS ISO 8693:2011BS ISO 8693:2011 ISO 8693:2011(E) ICS 25.120.30 Price based on 6 pages ISO 2011 All rights reserved This page deliberately l
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