ISO INTERNATIONAL STANDARD 16915 First edition 2003-12-15 Tools for moulding Sprue pullers Outillage de moulage - Arrache-carottes Reference number ISO16915:2003(E) ISO @ ISO 2003 ISO 16915:2003(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces which are embedded are licensed to and instailed on the computer performing the editing. In accepts no liability in this area. Adobe is a trademark of Adobe Systems Incorporated. Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by IsO member bodies. In the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below. @ISO2003 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 from either ISO at the address below or ISO's 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 [email protected] Web www.iso.org Published in Switzerland @ ISO 2003 - All rights reserved ISO 16915:2003(E) Foreword IsO (the International Organization for Standardization) is a worldwide federation of national standards bodies established has the right to be represented on that committee. International organizations, governmental and Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. 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. rights. IsO shall not be held responsible for identifying any or all such patent rights. pressing and moulding. ganizationforStand zation'ghts reservec ili Copvriaht International Oraanization for Standardizatior INTERNATIONAL STANDARD ISO 16915:2003(E) Tools for moulding Sprue pullers 1 Scope This International Standard specifies the main dimensions and tolerances, in millimetres, of sprue pullers, which are used mainly in injection moulds for plastics and rubbers. See the example of application in Figure 1. It also specifies the material, hardness and designation of sprue pullers conforming to this International Standard. 4 Key 1 ejector pin (ISO 6751) 2 sprue puller (ISO 16915) 3 locating ring (ISO 10907-1) 4 sprue bush (ISO 10072) 5 parallel pins (ISO 8734) Figure1-Application example of spruepullers 2 Normative 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. IsO 2768-1, General tolerances — Part 1: Tolerances for linear and angular dimensions without individual tolerance indications ISO 4957, Tool steels zation'ghtsreserved ISO 16915:2003(E) 3 Dimensions See Figure 2 and Table 1. Dimensions in millimetres, surface roughness values in micrometres General tolerance: ISO 2768-m 0 6 -0,1 Ra 0.8 @4H10 NOTE Chamfers are left to the manufacturer's discretion. Figure 2 - Sprue puller 4 Material and hardness Sprue pullers shall be made from tool steel in accordance with IsO 4957. The minimal hardness shall be 50 HRC. 5 Designation Sprue pullers in accordance with this International Standard shall be designated by: a)“"Sprue puller"; b) reference to this International Standard, i.e. IsO 16915; c) diameter D1, in millimetres; d) length l1, in millimetres. EXAMPLE A sprue puller with a diameter D, = 12 mm and a length of l1 = 50 mm is design