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1、INTERNATIONAL STANDARD ISO 1268-5 First edition 2001-06-01 Reference number ISO 1268-5:2001(E) ISO 2001 Fibre-reinforced plastics Methods of producing test plates Part 5: Filament winding Plastiques renforcs de fibres Mthodes de fabrication de plaques dessai Partie 5: Moulage par enroulement filamen
2、taire ISO 1268-5:2001(E) ii ISO 2001 All rights reserved PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobes licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces which are embedded are licensed to and installed on the co
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5、he Central Secretariat at the address given below. ISO 2001 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, elec- tronic or mechanical, including photocopying and microfilm, without permission in writing from eit
6、her ISO at the address below or ISOs mem- ber 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.ch Web www.iso.ch Printed in Switzerland ISO 1268-5:2001(E) ISO 2001 All rights reserved iii Con
7、tentsPage 1Scope .1 2Normative reference .1 3Health and safety 1 4Principle 1 5Materials .2 6Plate dimensions 2 7Reinforcement content .2 8Apparatus .2 9Procedure .6 10Verification of the characteristics of the plates obtained .7 11Test plate preparation report 8 Annexes AExamples of winding paramet
8、ers9 BCalculation of winding parameters for preparing unidirectional plates by winding10 -,-,- ISO 1268-5:2001(E) iv ISO 2001 All rights reserved Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of
9、preparing International Standards is normally carried out 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,
10、 in liaison with ISO, also take part in the work. ISO collaborates 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 3. Draft Inte
11、rnational 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 of this part of ISO
12、 1268 may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. International Standard ISO 1268-5 was prepared by Technical Committee ISO/TC 61,Plastics, Subcommittee SC 13,Composites and reinforcement fibres. This first edition cancels and
13、 replaces ISO 9291:1996, which has been technically revised. ISO 1268 consists of the following parts, under the general titleFibre-reinforced plastics Methods of producing test plates: Part 1: General conditions Part 2: Contact and spray-up moulding Part 3: Wet compression moulding Part 4: Moulding
14、 of prepregs Part 5: Filament winding Part 6: Pultrusion moulding Part 7: Resin transfer moulding Part 8: Compression moulding of SMC and BMC Part 9: Moulding of GMT/STC The following additional parts are in preparation: Part 10: Injection moulding of SMC and BMC General principles and moulding of m
15、ultipurpose test specimens Part 11: Injection moulding of SMC and BMC Small plates Annexes A and B of this part of ISO 1268 are for information only. -,-,- INTERNATIONAL STANDARDISO 1268-5:2001(E) ISO 2001 All rights reserved 1 Fibre-reinforced plastics Methods of producing test plates Part 5: Filam
16、ent winding 1Scope This part of ISO 1268 specifies a method of preparing reinforced-plastic test plates by the filament winding process, using textile glass rovings and themoset resins (preimpregnated fibres are excluded). It specifies the preparation, under optimum industrial conditions, of unidire
17、ctionally reinforced plates, from which test specimens for various static mechanical tests can be cut. This part of ISO 1268 has been established for glass-reinforced plastics made of polyester or epoxy resin, but it can be extended to other types of resin and reinforcement. It is intended to be rea
18、d in conjunction with ISO 1268-1. NOTETo aid understanding of the method, the word “roving” is used throughout the text and is taken to include yarns, unless specifically mentioned to the contrary. 2Normative reference The following normative document contains provisions which, through reference in
19、this text, constitute provisions of this part of ISO 1268. For dated references, subsequent amendments to, or revisions of, any of these publications do not apply. However, parties to agreements based on this part of ISO 1268 are encouraged to investigate the possibility of applying the most recent
20、edition of the normative document indicated below. For undated references, the latest edition of the normative document referred to applies. Members of ISO and IEC maintain registers of currently valid International Standards. ISO 1268-1,Fibre-reinforced plastics Methods of producing test plates Par
21、t 1: General conditions. 3Health and safety See ISO 1268-1. 4Principle A roving (or a number of rovings together) impregnated with resin is wound, in several successive layers, onto a former. The required final thickness of the plates is obtained by strapping outer-mould pieces onto the former. Poly
22、merization can be carried out either in a press with heated platens or in an oven. This method leads to the preparation of two similar plates simultaneously. -,-,- ISO 1268-5:2001(E) 2 ISO 2001 All rights reserved 5Materials 5.1Roving This method applies to all rovings having a linear density betwee
23、nand. For lower linear densities, use several rovings in combination to reach a linear density betweenand(for example, 10 yarns of to obtain). 5.2Resin system It is recommended that the resin system used (polyester or epoxy resin + catalyst or hardener system) has the following characteristics: visc
24、osity: less thanat the winding temperature; minimum pot life: the minimum pot life of the resin system at the operating temperature should be such that the increase in viscosity of the resin at the end of the winding operation is less thanof the initial value. If a resin system that does not have th
25、e above characteristics is chosen, the viscosity and minimum pot life of the resin system used shall be stated in the test plate preparation report (clause 11). 6Plate dimensions The minimum dimensions of the plates produced arein length andin width. 7Reinforcement content The glass content shall be
26、 specified by the person requesting the plate. The glass content of this type of laminate is typicallyby mass. NOTEA glass content ofby mass corresponds toby volume. 8Apparatus 8.1Reel (optional) The reel shall be fitted with a tension-regulating system permitting adjustment of the roving tension be
27、tweenand (tension measured before the roving enters the impregnating bath). 8.2Winding machine(see Figure 1) The winding machine shall have the following characteristics: speed of spindle: continuously variable fromto; pitch: adjustable fromto(the pitch is equal to the travel of the thread guide whe
28、n the former makes a complete revolution); when necessary, a radiant panel permitting winding of the roving on to the former at a nearly constant temperature. 200 tex4 800 tex 200 tex4 800 tex 22 tex220 tex 0,4 Pas 40 % 300 mm220 mm 70 % 70 %52 % 0 N 15 N 0 r/min70 r/min 0,5 mm5 mm -,-,- ISO 1268-5:
29、2001(E) ISO 2001 All rights reserved 3 Key 1Exit guide 2Foam-retaining devices 3Entrance guide (eye-type) 4Roving 5Impregnating bath with double wall 6Grooved guide rod 7Flat guide rod 8Radiant panel 9Former 10Impregnating bath 11Movable arm 12Winding machine 13Tension-regulating system 14Roving bob
30、bin or package Figure 1 Impregnating bath and winding machine ISO 1268-5:2001(E) 4 ISO 2001 All rights reserved 8.3Impregnating devices 8.3.1General One of the impregnation devices described in 8.3.2 and 8.3.3 may be used. If a different system is used, details shall be given in the test plate prepa
31、ration report (clause 11). 8.3.2Impregnating bath (see Figure 1) The temperature of the resin system in the bath shall be monitored to maintain its viscosity (see 5.2) as nearly constant as possible in order to ensure uniform and complete impregnation of the roving. It is therefore recommended that
32、the impregnating bath should have a double wall permitting the circulation of a temperature-regulating liquid, and that the dimensions of the bath allow an impregnation length of at least and provide a resin capacity of about. The type of bath shown in Figure 1 is given as an example. It is recommen
33、ded that the bath have the following characteristics: an eye-type thread guide at the entrance to prevent abrasion (made of e.g. polytetrafluoroethylene or chromium- plated metal); a thread guide at the exit, ensuring complete impregnation without drying; devices for retaining resin foam; guide rods
34、 under the resin surface (alternating sets of flat and grooved). 8.3.3Impregnating roller (see Figure 2) The roller shall be corrosion- and wear-resistant. It shall be free-wheeling and have a minimum diameter of. The length of the area of contact between the roving and the roller shall be not less
35、thanof the roller circumference, and the roller shall be immersed in the resin to a depth of approximatelytoof its diameter. A doctor blade shall be used to control the amount of resin on the roller. The distance between this blade and the roller shall be variable betweenand. The setting of this bla
36、de shall be determined by preliminary tests. A scraper blade shall be used to remove the resin the roving does not pick up. Key 1Roving 2Roller 3Resin 4Guide 5Doctor blade Figure 2 Impregnating roller 400 mm 1 l 120 mm 20 % 20 %30 % 0 mm3 mm -,-,- ISO 1268-5:2001(E) ISO 2001 All rights reserved 5 8.
37、4Former(see Figure 3) This shall consist of a former frame, ground flat on both sides, onto which the roving is wound and outer-mould pieces designed to be placed over both faces of the winding and press onto the sides of the former, thus accurately defining the thickness of the winding. The faces o
38、f the outer-mould pieces shall be perfectly flat, and parallel to the former faces. Rod-shaped silicone-rubber end pieces are required to seal the gap between the former and the outer-mould pieces and prevent resin loss during curing. Key 1Former frame 2Outer-mould pieces 3Spindle mounting 4Notch 5T
39、hickness of winding 6Silicone-rubber end piece 7Roving Figure 3 Winding and curing former ISO 1268-5:2001(E) 6 ISO 2001 All rights reserved 8.5Press with heated platens The press shall have the following characteristics: minimum force:; temperature adjustable according to the curing cycle required b
40、y the resin and its catalyst system. If a press with heated platens is not available, the following may be used: a system for clamping the outer-mould pieces in place; an oven capable of maintaining the curing-cycle temperature required by the resin system. 9Procedure Unless otherwise specified, the
41、 rovings shall be processed without previous conditioning. Mount the former on the spindle of the winding machine. When the impregnating bath has to be kept at a temperature higher than, it is recommended that the former be maintained at as nearly constant a temperature as possible (by means of a ra
42、diant panel for example). Adjust the speed of rotation of the spindle to obtain a roving speed of betweenand; the speed shall be selected such that the winding operation can be completed during the pot life of the resin (see 5.2). Choose the winding parameters as follows: Winding pitch,: Number of l
43、ayers,: See annex A for examples of convenient winding parameters and annex B for calculation if needed. Place the roving bobbin(s) on the unwinding reel, if applicable. Unwind a suitable length of roving by tangential or overhead take-off, feed it through the tension-regulating system, the guide ro
44、ds in the bath and the thread guide, and attach it to the former. By means of the tension-regulating system, adjust the tension in the roving to ensure the roving will be wound uniformly on the former. Pour the resin system into the impregnating bath. Maintain the temperature of the bath at the chos
45、en temperature. Coat the outer-mould pieces with a release agent which is stable at the operating temperature, or cover with a heat- resistant film. If using a former without the notches that permit the winding to be cut off, fix to each end of the former a plastic rod to facilitate removal of the p
46、lates and to prevent damage to the former when cutting the winding. Place the silicone-rubber end pieces at each end of the two sides of the former as shown in Figure 3. These rods are intended to keep the roving in tension during winding and to avoid any loss of resin at the mould closure. Their po
47、sition and diameter shall be such that the part of the winding between them is flat. Coat the outer-mould pieces with a thin layer of the resin system. Wind a layer of roving. If necessary, remove the resin appearing on the surface with a flexible spatula or a roller. Repeat for each layer of windin
48、g. When winding has been completed, fix the outer-mould pieces on the former (see Figure 3). 20 kN 50 C 5 m/min15 m/min p0,5 mm p 4 mm n26 n 612 -,-,- ISO 1268-5:2001(E) ISO 2001 All rights reserved 7 Place the assembly either between the hot platens of a press, or in an oven with the outer-mould pieces clamped in place. Cure the moulding under the time and temperature conditions that are recommended for the resin system used. Proceed to post-curing of the moulding (this may be done with or without the outer-mou