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1、BRITISH STANDARD BS ISO 1268-6:2002 Fibre-reinforced plastics Methods of producing test plates Part 6: Pultrusion moulding ICS 83.120 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 27 08:14:57 GMT+00:00 2006, Uncontrolled Co
2、py, (c) BSI BS ISO 1268-6:2002 This British Standard, having been prepared under the direction of the Materials and Chemicals Sector Policy and Strategy Committee, was published under the authority of the Standards Policy and Strategy Committee on 27 May 2002 BSI 27 May 2002 ISBN 0 580 39704 1 Natio
3、nal foreword This British Standard reproduces verbatim ISO 1268-6:2002 and implements it as the UK national standard. The UK participation in its preparation was entrusted to Technical Committee PRI/42, Fibre-reinforced thermosetting plastics and prepregs, which has the responsibility to: A list of
4、organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled “International St
5、andards Correspondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Sta
6、ndard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and Europ
7、ean developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the ISO title page, pages ii and iii, a blank page, pages 1 to 3 and a back cover. The BSI copyright date displayed in this document indicates when the document was last iss
8、ued. Amendments issued since publication Amd. No. DateComments Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 27 08:14:57 GMT+00:00 2006, Uncontrolled Copy, (c) BSI INTERNATIONAL STANDARD ISO 1268-6 First edition 2002-04-15 Reference number ISO 1268-6:2002(E) Fibre-reinforced plastics Methods o
9、f producing test plates Part 6: Pultrusion moulding Plastiques renforcs de fibres Mthodes de fabrication de plaques dessai Partie 6: Moulage par pultrusion Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 27 08:14:57 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ISO 1268-6:2002(E) ii ISO 2002 Ar lli
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15、 iii 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 member body interested in a subject for whic
16、h 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 Electrotechnical Commission (IEC) on all ma
17、tters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 3. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Stand
18、ard 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 1268 may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. International Sta
19、ndard ISO 1268-6 was prepared by Technical Committee ISO/TC 61, Plastics, Subcommittee SC 13, Composites and reinforcement fibres. ISO 1268 consists of the following parts, under the general title Fibre-reinforced plastics Methods of producing test plates: Part 1: General conditions Part 2: Contact
20、and spray-up moulding Part 3: Wet compression moulding Part 4: Moulding 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 Part 10: Injection moulding of BMC and other long-fibre mou
21、lding compounds General principles and moulding of multipurpose test specimens Part 11: Injection moulding of BMC and other long-fibre moulding compounds Small plates Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 27 08:14:57 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Licensed Copy: sheffieldun
22、 sheffieldun, na, Mon Nov 27 08:14:57 GMT+00:00 2006, Uncontrolled Copy, (c) BSI INTERNATIONAL STANDARDISO 1268-6:2002(E) 1 Fibre-reinforced plastics Methods of producing test plates Part 6: Pultrusion moulding 1Scope This part of ISO 1268 specifies a pultrusion-moulding method for preparing reinfor
23、ced plastics test plates to be used for the preparation of test specimens to determine the mechanical and physical properties of the laminate. The method is applicable to laminates made from thermosetting or thermoplastic resins reinforced with glass, carbon or aramid fibres alone or in combination
24、and in any form suitable for the pultrusion process (continuous rovings, tows, mats, fabrics or combinations of these). This part of ISO 1268 is intended to be read in conjunction with ISO 1268-1. 2Normative references The following normative documents contain provisions which, through reference in
25、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
26、editions of the normative documents 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 1172, Textile-glass-reinforced plastics Prepregs, moulding compound
27、s and laminates Determination of the textile-glass and mineral-filler content Calcination methods ISO 1268-1, Fibre-reinforced plastics Methods of producing test plates Part 1: General conditions 3Health and safety See ISO 1268-1. 4Principle 4.1The pultrusion process is unique among processes for th
28、e manufacture of fibre-reinforced composites in being able to produce continuous lengths of profile with complex geometry and different fibre content, orientation and type of reinforcement material within the profile. Satisfactory performance in service can depend on the properties of parts of the p
29、rofile which are too small or of an unsuitable shape for their properties to be verified by cutting test specimens from the profile. If test specimens meeting the required test conditions cannot be obtained from the production profile, it is necessary to produce a representative flat strip laminate
30、made from the same materials and under the same processing conditions as the production laminate. Test specimens may then be cut from the representative flat strip in accordance with the relevant mechanical test method. This part of ISO 1268 defines a procedure for the manufacture of such representa
31、tive laminates. The method may also be used to compare the performance of alternative input materials and alternative profile production conditions. 4.2The reinforcement is impregnated with a suitable resin and pulled through a forming die, under specified conditions, to consolidate the matrix syste
32、m and form a flat strip profile. Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 27 08:14:57 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ISO 1268-6:2002(E) 2 The flat strip profile has to be of sufficient width to allow test specimens of the requisite length to be cut perpendicular to the directi
33、on of production or in other specified directions. 5 Materials 5.1Reinforcement materials, in any form suitable for the pultrusion process, in most cases continuous rovings, tows or strands, mats and woven fabrics, with surface treatment compatible with the resin system used. 5.2Either a thermosetti
34、ng resin system, formulated in accordance with the suppliers instructions, that will perform adequately at the selected processing conditions of temperature, production speed, etc., resulting in a cured matrix system, or a thermoplastic matrix, in which case the nature and form of both the matrix po
35、lymer and the reinforcement may be specific to the system being used to make the test plates. 6Shape and dimensions For the purposes of this part of ISO 1268, only flat strip profiles are acceptable for the production of test plates. The permitted width and thickness of the plate will depend on the
36、purpose for which the plate is made. In all cases, the thickness shall be the thickness required in the final test specimens. The width of the plate shall be sufficient to allow test specimens of a length suitable for the test being undertaken to be cut perpendicular to the direction of production.
37、7Reinforcement content The reinforcement content, the nature of the reinforcement and the orientation of individual layers in the laminate shall be as defined in the specification for the test plate or by the person ordering the production of the test plate. In all cases, there shall be sufficient r
38、einforcement included to completely fill the die cavity. 8Apparatus 8.1Pultrusion equipment consisting of the following. 8.1.1Reinforcement rack or creel to hold the required number of roving ends and, optionally, the required rolls of mat, fabric, etc. 8.1.2Impregnating unit. 8.1.3Forming die for t
39、he selected profile, equipped with a suitable heating system (it is sometimes possible to combine the forming die and the impregnating unit). 8.1.4Pulling section, designed to adequately pull the selected profile at constant speed. 8.1.5Cutting section. 8.1.6Clamp or press, suitable for holding the
40、test plates while they stabilize and/or while they are post-cured. 9Procedure For general conditions, see ISO 1268-1. The equipment shall be set up in accordance with the manufacturers instructions. The reinforcement content, the nature of the reinforcement and the orientation of individual layers i
41、n the laminate shall be as defined in the specification for the test plate or by the person ordering the production of the test plate. The Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 27 08:14:57 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ISO 1268-6:2002(E) 3 process conditions shall be chose
42、n in accordance with the recommendations of the resin supplier, to obtain a cured product free of defects, reflecting the standard production quality for such pultruded products. The test specimens shall be cut from the profile only when stable process conditions have been achieved. 10Stabilization
43、The test plate shall be flat and fully cured to enable satisfactory test specimens to be cut from it. Depending on the resin being used and the process conditions, the flat profile produced by the pultrusion machine may require a period of stabilization and/or post-cure. The test plate shall be cut
44、to approximately the right length on the pultrusion machine and (if stabilization is required to prevent warping) the plates shall be held flat in a suitable clamp or press. If post-curing is required, this shall be done while the plates are held in the press. The time and temperature of the post-cu
45、re shall be as defined in the process specification or by the person ordering the production of the test plate. 11Verification of the characteristics of the test plate The fibre content shall be determined by the method given in ISO 1172 for glass fibre, or by a method agreed between the interested
46、parties for carbon fibre, and compared to the requirement given in the specification. The void content shall be assessed visually before submitting the test specimens for testing. 12Test plate preparation report The test plate preparation report shall include the following information: a)a reference
47、 to this part of ISO 1268; b)a full description of the constituents used, including the resin system, the reinforcement and any addivities (product codes and/or generic descriptions may be used as applicable); c)identification of the plates, using a suitable numbering or code system; d)a record of t
48、he production process conditions, including as a minimum the peak die temperature and the pull speed; e)details of the conditions of any post-cure; f)the reinforcement content; g)any modifications to the procedure which might influence the properties of test specimens taken from the test plate. Lice
49、nsed Copy: sheffieldun sheffieldun, na, Mon Nov 27 08:14:57 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS ISO 1268-6:2002 BSI 389 Chiswick High Road London W4 4AL BSI British Standards Institution BSI is the independent national body responsible for preparing British Standards. It presents the UK view on standards in Europe and at the international level. It is incorporated by Royal Charter. Revisions British Standards are updated by amendment or revision. Users of British Standards should make sure that they possess