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1、 Reference number ISO 5603:2007(E) ISO 2007 INTERNATIONAL STANDARD ISO 5603 Second edition 2007-07-01 Rubber, vulcanized Determination of adhesion to wire cord Caoutchouc vulcanis Dtermination de ladhrence un cble mtallique Copyright International Organization for Standardization Provided by IHS und
2、er license with ISO Licensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 07/16/2007 01:01:21 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 5603:2007(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobes licensing pol
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6、lication 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 ISOs member body in the country of the requester. ISO copyright office Case postale 56 CH-1211 Gen
7、eva 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 2007 All rights reserved Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=IHS Employees/1111111001, User=Wing, Bernie No
8、t for Resale, 07/16/2007 01:01:21 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 5603:2007(E) ISO 2007 All rights reserved iii Contents Page Foreword iv 1 Scope . 1 2 Normative references. 1 3 Principle. 1 4 Materials 2 5 Apparatus 2 6 Test piece 3 7 Procedure 5 8 Expr
9、ession of results . 5 9 Test report . 6 Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 07/16/2007 01:01:21 MDTNo reproduction or networking permitted without license from IHS -,-,- I
10、SO 5603:2007(E) iv ISO 2007 All rights reserved Foreword 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. Each m
11、ember 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 International
12、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 Standards a
13、dopted 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 of p
14、atent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 5603 was prepared by Technical Committee ISO/TC 45, Rubber and rubber products, Subcommittee SC 2, Testing and analysis. This second edition cancels and replaces the first edition (ISO 5603:1986), whic
15、h has been revised to update the normative references (ISO 471 has been replaced by ISO 23529). In addition, for the tensile-testing machine in 5.3, specific reference has been made to class 2 of ISO 5893. The text has also been clarified in places. Copyright International Organization for Standardi
16、zation Provided by IHS under license with ISO Licensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 07/16/2007 01:01:21 MDTNo reproduction or networking permitted without license from IHS -,-,- INTERNATIONAL STANDARD ISO 5603:2007(E) ISO 2007 All rights reserved 1 Rubber, vulcanized D
17、etermination of adhesion to wire cord WARNING Persons using this International Standard should be familiar with normal laboratory practice. This standard does not purport to address all of the safety problems, if any, associated with its use. It is the responsibility of the user to establish appropr
18、iate safety and health practices and to ensure compliance with any national regulatory conditions. CAUTION Certain procedures specified in this International Standard may involve the use or generation of substances, or the generation of waste, that could constitute a local environmental hazard. Refe
19、rence should be made to appropriate documentation on safe handling and disposal after use. 1 Scope This International Standard specifies two methods for determining the adhesion strength of vulcanized rubber to wire cord which is embedded in the rubber. The two methods do not necessarily give the sa
20、me results. They are applicable primarily to test pieces prepared in the laboratory under standard conditions and used for the development and control of materials and processes utilized in the manufacture of products reinforced with wire cord. NOTE The methods can also be used for single wire, for
21、example bead wire. Method 1 reduces the dependence of the measured adhesion on the modulus and strength properties of the rubber. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. Fo
22、r undated references, the latest edition of the referenced document (including any amendments) applies. ISO 2393, Rubber test mixes Preparation, mixing and vulcanization Equipment and procedures ISO 5893:2002, Rubber and plastics test equipment Tensile, flexural and compression types (constant rate
23、of traverse) Specification ISO 23529, Rubber General procedures for preparing and conditioning test pieces for physical test methods 3 Principle The adhesion stength is determined by measuring the force required to pull out a single cord from the surrounding rubber of a prepared test piece. The forc
24、e is directed along the axis of the cord, using a test jig containing a suitably chosen circular- or square-shaped hole to ensure uniformity of stress. Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=IHS Employees/1111111001, User=Wing, Bernie
25、 Not for Resale, 07/16/2007 01:01:21 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 5603:2007(E) 2 ISO 2007 All rights reserved Test pieces of cord and rubber are prepared together by vulcanizing them under pressure. In method 1, the exterior surface of the rubber is s
26、uitably reinforced. In method 2, such reinforcement is not employed. 4 Materials 4.1 Wire cord, conforming to the specification of the bonding system to be investigated. If no specification is given, brass-plated steel cord of construction 1 3 0,15 mm + 6 0,27 mm or of construction 7 4 0,22 mm shall
27、 be used. NOTE The sizes of the cords are defined here in terms of their diameter and the number of component wires, starting from the centre core of the cord. For qualilty control of cord, it shall be tested in the condition received, i.e. neither cleaned nor dried. It is essential that the wire co
28、rd is stored in a dry atmosphere to prevent any surface deterioriation. Storage can conveniently be carried out in an airtight container which also contains a desiccating material (for example silica, SiO2). The container shall only be opened when removing wire cord and shall then be closed immediat
29、ely. It is also essential that the cord is not contaminated with dust from the desiccating material. 4.2 Unvulcanized rubber compound, conforming to the specification of the bonding system to be investigated. Whenever possible, the rubber shall be freshly milled. If for any reason the rubber cannot
30、be remilled, the surface shall be freshened by wiping with a solvent and allowed to dry. The preferred solvent is heptane, but a suitable alternative could be a petroleum solvent with a distillation range of about 65 C to 125 C; these solvents shall possess a maximum residue on evaporation of 3 mg p
31、er 100 cm3 of solvent. The compound shall be stored at a standard laboratory temperature of (23 2) C or (27 2) C prior to use. It can be in the form of calendered sheet of suitable thickness and shall be protected by a dark-coloured polyethylene film. 4.3 Reinforcement material, to stiffen the rubbe
32、r block. This applies only to method 1. The reinforcement can either be a sheet metal strip treated with adhesive promoter (when the thickness t is at least 0,5 mm) or a strip of rigid rubberized steel cord fabric. A suitable fabric is one containing steel cords of high bending stiffness, for exampl
33、e one of construction 1 3 0,30 mm + 6 0,38 mm when the thickness t is (2,5 0,1) mm maximum. 5 Apparatus 5.1 Mould, capable of producing a test piece in which a multiplicity of cords is embedded equally spaced along its length. Different moulds are employed for the two methods. a) Method 1 The mould
34、is of a semi-follow-on type to obtain maximum consolidation of rubber around the cord during the pressing stage, but thereafter becomes a fixed-cavity mould. One suitable mould designed to accommodate steel cord fabric reinforcement is shown in Figure 1. This mould produces test pieces of length 310
35、 mm containing 21 cords, but similar moulds employing other numbers of cords greater that nine are acceptable. The mould dimension x will depend on the embedded length of test piece required (which is governed by the diameter of wire cord used, see 6.2). The mould shall be provided with pairs of ins
36、erts or spacers to obtain the different lengths of cord embedment. Dimension y is sufficiently great to allow the incorporation of excess rubber during moulding (see 6.3.1). Another suitable mould designed to accommodate steel strip reinforcement is shown in Figure 2. A tensioning device for the cor
37、ds can be used with this mould. Figure 3 details some mould dimensions and describes the Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 07/16/2007 01:01:21 MDTNo reproduction or netw
38、orking permitted without license from IHS -,-,- ISO 5603:2007(E) ISO 2007 All rights reserved 3 exchangeable steel spacers which are required for different cord sizes for the moulds shown in Figures 1 and 2. Any mould producing test pieces of the correct dimensions and applying the moulding force di
39、rectly on to the rubber, for example by use of a suitable spring, is also acceptable. If desired, the moulds can impart suitable features on to the moulded test piece to facilitate cord centring during subsequent testing. b) Method 2 The mould is described in Figures 4 and 5. The mould is designed t
40、o produce four test blocks (each of length 200 mm) with the preferred dimensions (see 6.2), each containing 15 steel cords. When testing cords with a diameter equal to or less than 1,7 mm, the mould in Figures 4 and 5 shall be used to produce blocks and, when testing cords with a diameter greater th
41、an 1,7 mm, the mould shall be suitably modifed. If more than one-third of the cords break at the 12,5 mm embedment, it is advisable to reduce the embedment by use of a suitable mould insert. Moulds designed to produce any other number of test blocks of the required dimensions are acceptable, and mou
42、lds designed to produce blocks with different embedded cord lengths are permitted. 5.2 Vulcanizing press, large enough to take the mould. It shall conform to the requirements of ISO 2393 and shall be capable of applying a force of at least 100 kN. 5.3 Tensile-testing machine, conforming to the requi
43、rements of class 2 as defined in ISO 5893:2002. It shall be capable of maintaining a rate of separation of the jaws at a constant value within the range 50 mm/min to 150 mm/min. 5.4 Fixture, for holding the test piece in the test machine. It shall possess a suitable slot to allow the test cord to re
44、ach the test hole: the hole dimensions shall depend on the test piece type (see 6.2). The fixture shall laterally support the test piece in a slide-fit and shall permit accurate centring of the applied load (i.e. cord position) during testing. If desired, the fixture can possess particular features
45、to facilitate the centring of the test cord in the test hole. Suitable types of fixture are depicted in Figure 6. 5.5 Jaws, for gripping the cord to be extracted in the test machine. These can be of the wedge, pneumatic, pneumatic/hydraulic or bollard type, arranged so that the force applied to the
46、cord during testing is normal to the face of the test piece. 6 Test piece 6.1 Form The test piece shall have one of the general forms shown in Figure 7. 6.2 Dimensions Two types of test pieces are specified for method 1, depending on the wire cord diameter. Their dimensions shall comply with Table 1
47、. The dimensions of the test piece for method 2 shall comply with Table 2. For both methods, for cords with diameters below 0,5 mm or above 1,7 mm, or for smaller cords which experience cord breakages with rubber compounds showing very high adhesion strength, the same form of test piece shall be use
48、d, with the dimensions h and L suitably scaled. Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 07/16/2007 01:01:21 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 5603:2007(E) 4 ISO 2007 All rights reserved Table 1 Dimensions of test piece for method 1 Dimensions in millimetres Embedded length, L Type Cord diameter, d Using steel plate reinforcement U