SIST EN ISO 10724-2:2001
(Main)Plastics - Injection moulding of test specimens of thermosetting powder moulding compounds (PMCs) - Part 2: Small plates (ISO 10724-2:1998)
Plastics - Injection moulding of test specimens of thermosetting powder moulding compounds (PMCs) - Part 2: Small plates (ISO 10724-2:1998)
Kunststoffe - Spritzgießen von Probekörpern aus duroplastischen rieselfähigen Formmassen (PMC) - Teil 2: Kleine Platten (ISO 10724-2:1998)
Dieser Teil von ISO 10724 legt Zweifachwerkzeuge fest, die ISO-Typ-D1- und -D2-Werkzeuge zum Spritzgießen kleiner Platten 60 mm x 60 mm mit den Vorzugsdicken von 1 mm (Typ D1) und 2 mm (Typ D2), die für eine Vielzahl von Prüfungen verwendet werden können (Anhang A). Die Werkzeuge können zusätzlich mit Einsätzen versehen werden zur Untersuchung der Wirkung von Fließnähten auf mechanische Eigenschaften (siehe Anhang B).
Plastiques - Moulage par injection d'éprouvettes en compositions de poudre a mouler (PMC) thermodurcissables -Partie 2: Petites plaques (ISO 10724-2:1998)
La présente partie de l'ISO 10724 spécifie deux types de moules à deux empreintes, les moules ISO Dl et D2, pour le moulage par injection de petites plaques mesurant 60 mm x 60 mm avec des épaisseurs préférentielles de 1 mm (type D1) ou 2 mm (type D2) pouvant être utilisées pour un grand nombre d'essais (voir annexe A). Les moules peuvent en outre être équipés d'inserts pour étudier les effets des lignes de soudure sur les caractéristiques mécaniques (voir annexe B).
Polimerni materiali - Vbrizgavanje duromernih preskušancev iz praškastih snovi za oblikovanje (PMC) -2. del: Ploščice (ISO 10724-2:1998)
General Information
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Kunststoffe - Spritzgießen von Probekörpern aus duroplastischen rieselfähigen Formmassen (PMC) - Teil 2: Kleine Platten (ISO 10724-2:1998)Plastiques - Moulage par injection d'éprouvettes en compositions de poudre a mouler (PMC) thermodurcissables -Partie 2: Petites plaques (ISO 10724-2:1998)Plastics - Injection moulding of test specimens of thermosetting powder moulding compounds (PMCs) - Part 2: Small plates (ISO 10724-2:1998)83.080.10DuromeriThermosetting materialsICS:Ta slovenski standard je istoveten z:EN ISO 10724-2:2000SIST EN ISO 10724-2:2001en01-junij-2001SIST EN ISO 10724-2:2001SLOVENSKI
STANDARD
SIST EN ISO 10724-2:2001
SIST EN ISO 10724-2:2001
SIST EN ISO 10724-2:2001
SIST EN ISO 10724-2:2001
SIST EN ISO 10724-2:2001
AReference numberISO 10724-2:1998(E)INTERNATIONALSTANDARDISO10724-2First edition1998-11-15Plastics — Injection moulding of testspecimens of thermosetting powdermoulding compounds (PMCs) —Part 2:Small platesPlastiques — Moulage par injection d’éprouvettes en compositions de poudreà mouler (PMC) thermodurcissables —Partie 2: Petites plaquesSIST EN ISO 10724-2:2001
ISO 10724-2:1998(E)©
ISO 1998All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronicor mechanical, including photocopying and microfilm, without permission in writing from the publisher.International Organization for StandardizationCase postale 56 · CH-1211 Genève 20 · SwitzerlandInternet
iso@iso.chPrinted in SwitzerlandiiForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISOmember bodies). The work of preparing International Standards is normally carried out through ISO technicalcommittees. Each member body interested in a subject for which a technical committee has been established hasthe right to be represented on that committee. International organizations, governmental and non-governmental, inliaison with ISO, also take part in the work. ISO collaborates closely with the International ElectrotechnicalCommission (IEC) on all matters of electrotechnical standardization.Draft International 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.International Standard ISO 10724-2 was prepared by Technical Committee ISO/TC 61, Plastics, SubcommitteeSC 12, Thermosetting materials.Together with part 1, this part of ISO 10724 cancels and replaces ISO 10724:1994, which has been revised toimprove the definition of the injection-moulding parameters and has been restructured to specify two types of ISOmould for the production of the basic specimen types required for the acquisition of comparable test data.Care has been taken to ensure that the ISO moulds described can all be fitted in existing injection-mouldingequipment and have interchangeable cavity plates.As far as possible, the wording of this part of ISO 10724 and its definitions corresponds to that in its counterpart forthermoplastic materials, ISO 294:1996, Plastics — Injection moulding of test specimens of thermoplastic materials.Unlike the latter, however, there is no need for the separate moulding of rectangular bars (80 mm ´ 10 mm ´ 4 mm,which should be taken from the central portion of the multipurpose test specimen) and the moulding of small tensilebars (> 60 mm ´ 10 mm ´ 3 mm). Therefore the type B and type C ISO moulds specified in ISO 294 were notincluded in this part of ISO 10724. Regardless of this, and to avoid confusion, the designation of the different mouldtypes in this part of ISO 10724 and in ISO 294 correspond to each other.ISO 10724 consists of the following parts, under the general title Plastics — Injection moulding of test specimens ofthermosetting powder moulding compounds (PMCs):—
Part 1: General principles and moulding of multipurpose test specimens—
Part 2: Small platesAnnexes A to D of this part of ISO 10724 are for information only.SIST EN ISO 10724-2:2001
© ISOISO 10724-2:1998(E)iiiIntroductionMany factors in the injection-moulding process which can influence the properties of moulded test specimens andhence the measured values obtained when the specimens are used in a test method. The thermal and mechanicalproperties of such specimens are in fact strongly dependent on the conditions of the moulding process used toprepare the specimens. Exact definition of each of the main parameters of the moulding process is a basicrequirement for reproducible and comparable operating conditions.It is important in defining moulding conditions to consider any influence the conditions may have on the properties tobe determined. Thermosets may show differences in orientation of anisotropic fillers such as short fibres and incuring. Residual ("frozen-in") stresses in the moulded test specimens may also influence properties. Due to thecrosslinking of thermosets, molecular orientation is of less influence on mechanical properties than it is forthermoplastics. Each of these phenomena must be controlled to avoid fluctuation of the numerical values of themeasured properties.SIST EN ISO 10724-2:2001
SIST EN ISO 10724-2:2001
INTERNATIONAL STANDARD
© ISOISO 10724-2:1998(E)1Plastics — Injection moulding of test specimens of thermosettingpowder moulding compounds (PMCs) —Part 2:Small plates1
ScopeThis part of ISO 10724 specifies two two-cavity moulds, designated the type D1 and type D2 ISO moulds, for theinjection moulding of small plates measuring 60 mm ´ 60 mm with preferred thicknesses of 1 mm (type D1) or 2 mm(type D2) which can be used for a variety of tests (see annex A). The moulds may additionally be fitted with insertsfor studying the effects of weld lines on the mechanical properties (see annex B).2
Normative referencesThe following standards contain provisions which, through reference in this text, constitute provisions of this part ofISO 10724. At the time of publication, the editions indicated were valid. All standards are subject to revision, andparties to agreements based on this part of ISO 10724 are encouraged to investigate the possibility of applying themost recent editions of the standards indicated below. Members of IEC and ISO maintain registers of currently validInternational Standards.ISO 472:—1), Plastics — Vocabulary.ISO 2577:1984, Plastics — Thermosetting moulding materials — Determination of shrinkage.ISO 6603-1:— 2), Plastics — Determination of puncture impact behaviour of rigid plastics — Part 1: Non-instrumented impact test.ISO 6603-2:— 3), Plastics — Determination of puncture impact behaviour of rigid plastics — Part 2: Instrumentedimpact test.ISO 10724-1:1998, Plastics — Injection moulding of test specimens of thermosetting materials — Part 1: Generalprinciples and moulding of multipurpose test specimens.3
DefinitionsFor the purposes of this part of ISO 10724, the definitions given in ISO 472 as well as those in ISO 10724-1 apply.4
Apparatus4.1
Type D1 and D2 ISO mouldsType D1 and D2 moulds are two-cavity moulds (see Figure 2) intended for the preparation of plates measuring60 mm ´ 60 mm. The plates produced using these moulds shall have the dimensions given in Figure 1.
1)
To be published. (Revision of ISO 472:1988)2)
To be published. (Revision of ISO 6603-1:1985)3)
To be published. (Revision of ISO 6603-2:1989)SIST EN ISO 10724-2:2001
ISO 10724-2:1998(E)© ISO2KeySp SprueG GateR RunnerP Pressure sensorDimensions in mml Length of plate60 ± 2 1)b Width of plate60 ± 2 1)h Thickness of plate:
type D1 mould1,0 ± 0,1
type D2 mould2,0 ± 0,1 1)lG Length of gate4,0 ± 0,1 2)hG Height of gate(0,75 ± 0,05) ´ h 2) 3)lR Length of runner25 to 30 4)bR Width of runner at gate> (b + 6)hR Depth of runner at gateh + (1,5 ± 0,5)l* Unspecified distance
—lP Distance of pressure sensor from gate5 ± 2 5)1)These dimensions are for the preferred testspecimen used in ISO 6603.2)See note 1 to subclause 4.1.3)See note 2 to subclause 4.1.4)See note 3 to subclause 4.1.5)The position of the pressure sensor shall befurther limited by the following conditions:
lP + rP < 10
lP - rP > 0where rP is the radius of the sensor.Figure 1 — Details of type D1 and D2 ISO mouldsSIST EN ISO 10724-2:2001
© ISOISO 10724-2:1998(E)3KeySpSprueMoulding volume VM » 30 000 mm3 (at 2 mm thickness)GGateProjected area AP » 11 000 mm2lCis the distance between the lines along which the test specimens are cutfrom the runners (see notes 4 and 5 to subclause 4.1)Figure 2 — Cavity plate for type D1 and D2 ISO mouldsThe main constructional details of type D1 and D2 ISO moulds shall be as shown in Figures 1 and 2 and shall meetthe following requirements:a)See ISO 10724-1:1998, subclause 4.1.4, item a).b)Not applicable.c)See ISO 10724-1:1998, subclause 4.1.4, item c).d) and e)Not applicable.f)See ISO 10724-1:1998, subclause 4.1.4, item f), but without the last part of the second sentence.g)See ISO 10724-1:1998, subclause 4.1.4, item g), but with reference to ISO 6603.The main dimensions, in millimetres, of the cavities shall be as follows (see also Figure 1):—Length:60 to 62;—Width:60 to 62;—Depth:type D1 mould1,0 to 1,1type D2 mould2,0 to 2,1.h) to j)See ISO 10724-1:1998, subclause 4.1.4, items h) to j).SIST EN ISO 10724-2:2001
ISO 10724-2:1998(E)© ISO4k)Figure 1 shows the position of a pressure sensor P within the cavity, which is mandatory for themeasurement of moulding shrinkage only (see ISO 2577). It may be useful, however, in controllingthe injection period with any ISO mould [see ISO 10724-1:1998, subclause 4.1.4, item k)]. Thepressure sensor shall be flush with the cavity surface in order to avoid interference of the melt flow.l)See ISO 10724-1:1998, subclause 4.1.4, item l).m)See ISO 10724-1:1998, subclause 4.1.4, item m), and annex C of this part of ISO 10724.n)See ISO 10724-1:1998, sub
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