BS EN ISO 294-3-2003 Plastics - Injection moulding of test specimens of thermoplastic materials - Small plates《塑料 热塑性材料试样的注射模塑法 小板》.pdf

1、BRITISH STANDARD BS EN ISO 294-3:2003 Plastics Injection moulding of test specimens of thermoplastic materials Part 3: Small plates The European Standard EN ISO 294-3:2003 has the status of a British Standard ICS 83.080.20 BS EN ISO 294-3:2003 This British Standard was published under the authority

2、of the Standards Policy and Strategy Committee on 7 August 2003 BSI 7 August 2003 ISBN 0 580 42401 4 National foreword This British Standard is the official English language version of EN ISO 294-3:2003. It is identical with ISO 294-3:2002. It supersedes BS EN ISO 294-3:1998 which is withdrawn. The

3、UK participation in its preparation was entrusted to Technical Committee PRI/21, Plastics test methods, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement internati

4、onal or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport

5、to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee an

6、y enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN ISO title page, the EN ISO fore

7、word page, the ISO title page, pages ii to iv, pages 1 to 8, the annex ZA page and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date CommentsEUROPEANSTANDARD NORMEEUROPENNE EUROPISCHENORM E

8、NISO2943 July2003 ICS83.080.20 SupersedesENISO2943:1998 Englishversion PlasticsInjectionmouldingoftestspecimensofthermoplastic materialsPart3:Smallplates(ISO2943:2002) PlastiquesMoulageparinjectiondesprouvettesde matriauxthermoplastiquesPartie3:Plaquesdepetites dimensions(ISO2943:2002) KunststoffeSp

9、ritzgieenvonProbekrpernaus ThermoplastenTeil3:KleinePlatten(ISO2943:2002) ThisEuropeanStandardwasapprovedbyCENon26June2003. CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEurope an Standardthestatusofanationalstandardwithoutanyalteration.Uptoda

10、telistsandbibliographicalreferencesconcernings uchnational standardsmaybeobtainedonapplicationtotheManagementCentreortoanyCENmember. ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).Aversioninanyotherlanguagemadebytra nslation undertheresponsibilityofaCENmemberintoitsownlangu

11、ageandnotifiedtotheManagementCentrehasthesamestatusasthe official versions. CENmembersarethenationalstandardsbodiesofAustria,Belgium,CzechRepublic,Denmark,Finland,France,Germany,Greece, Hungary,Iceland,Ireland,Italy,Luxembourg,Malta,Netherlands,Norway,Portugal,Slovakia,Spain,Sweden,SwitzerlandandUn

12、ited Kingdom. EUROPEANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG ManagementCentre:ruedeStassart,36B1050Brussels 2003CEN Allrightsofexploitationinanyformandbyanymeansreserved worldwideforCENnationalMembers. Ref.No.ENISO2943:2003EINESO924:302(30E) 2 Foreword Th

13、etextofISO2943:2002hasbeenpreparedbyTechnicalCommitteeISO/TC6“Plastics”of theInternationalOrganizationforStandardization(ISO)andhasbeentakenoverasENISO 2943:2003byTechnicalCommitteeCEN/TC249“Plastics“,thesecretariatofwhichisheldby IBN. ThisEuropeanStandardshallbegiventhestatusofanationalstandard,eit

14、herbypublicationof anidenticaltextorbyendorsement,atthelatestbyJanuary2004,andconflictingnational standardsshallbewithdrawnatthelatestbyJanuary2004. ThisdocumentsupersedesENISO2943:1998. AccordingtotheCEN/CENELECInternalRegulations,thenationalstandardsorganizationsof thefollowingcountriesareboundtoi

15、mplementthisEuropeanStandard:Austria,Belgium,Czech Republic,Denmark,Finland,France,Germany,Greece,Hungary,Iceland,Ireland,Italy, Luxembourg,Malta,Netherlands,Norway,Portugal,Slovakia,Spain,Sweden,Switzerlandand theUnitedKingdom. Endorsementnotice ThetextofISO2943:2002hasbeenapprovedbyCENasENISO2943:

16、2003withoutany modifications. NOTENormativereferencestoInternationalStandardsarelistedinAnnexZA(normative). ENISO2943:2003 Reference number ISO 294-3:2002(E) OSI 2002INTERNATIONAL STANDARD ISO 294-3 Second edition 2002-06-01 Plastics Injection moulding of test specimens of thermoplastic materials Pa

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22、coirypthgis.oc h Web ww.wiso.ch ii ISO 2002 Allr ithgsr esedevrENISO2943:2003IS-492 O3:(2002)E I SO 2002 All irthgs ersedevr iiiContents Page Foreword.iv 1 Scope1 2 Normative references1 3 Terms and definitions .1 4 Apparatus.2 5 Procedure.4 6 Report on test-specimen preparation5 Annex A (informativ

23、e) Weld lines 6 Bibliography8 ENISO2943:2003IS-492 O3:(2002)E I SO 2002 All irthgs ersedevr ivForeword 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 carrie

24、d 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, in liaison with ISO, also take part in the work. IS

25、O 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. The main task of technical committees is to prepare Internatio

26、nal Standards. 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. Attention is drawn to the possibility that some of the ele

27、ments of this part of ISO 294 may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 294-3 was prepared by Technical Committee ISO/TC 61, Plastics, Subcommittee SC 9, Thermoplastic materials. This second edition cancels and replaces

28、the first edition (ISO 294-3:1996), which has been technically revised. ISO 294 consists of the following parts, under the general title Plastics Injection moulding of test specimens of thermoplastic materials: Part 1: General principles, and moulding of multipurpose and bar test specimens Part 2: S

29、mall tensile bars Part 3: Small plates Part 4: Determination of moulding shrinkage Part 5: Preparation of standard specimens for investigating anisotropy Annex A of this part of ISO 294 is for information only. ENISO2943:2003INTENRATIONAL TSANDADR IS-492 O3:(2002)EI SO 2002 All irthgs ersedevr 1Plas

30、tics Injection moulding of test specimens of thermoplastic materials Part 3: Small plates 1 Scope This part of ISO 294 specifies two two-cavity moulds, the type D1 and D2 ISO moulds, for the injection moulding of small plates measuring 60 mm 60 mm with a preferred thickness of 1 mm (type D1) or 2 mm

31、 (type D2), which can be used for a variety of tests. The moulds may additionally be fitted with inserts for studying the effects of weld lines on the mechanical properties (see annex A). 2 Normative references The following normative documents contain provisions which, through reference in this tex

32、t, constitute provisions of this part of ISO 294. 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 294 are encouraged to investigate the possibility of applying the most recent editions o

33、f 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 294-1:1996, Plastics Injection moulding of test specimens of thermoplastic ma

34、terials Part 1: General principles, and moulding of multipurpose and bar test specimens ISO 294-4:2001, Plastics Injection moulding of test specimens of thermoplastic materials Part 4: Determination of moulding shrinkage ISO 6603-1:2000, Plastics Determination of puncture impact behaviour of rigid p

35、lastics Part 1: Non- instrumented impact testing ISO 6603-2:2000, Plastics Determination of puncture impact behaviour of rigid plastics Part 2: Instrumented impact testing 3 Terms and definitions For the purposes of this part of ISO 294, the terms and definitions given in ISO 294-1:1996 apply. ENISO

36、2943:2003IS-492 O3:(2002)E 2 I SO 2002 All irthgs ersedevr4 Apparatus 4.1 Type D1 and D2 ISO moulds Type D1 and D2 ISO moulds are two-cavity moulds (see Figure 1) intended for the preparation of plates measuring 60 mm 60 mm. The plates produced using these moulds shall have the dimensions shown in F

37、igure 2 and given in Table 1. The main constructional details of type D1 and D2 ISO moulds shall be as shown in Figures 1 and 2 and shall meet the following requirements: a) See ISO 294-1:1996, subclause 4.1.1.4, item a). b) Not applicable. c) See ISO 294-1:1996, subclause 4.1.1.4, item c). d) and e

38、) Not applicable. f) See ISO 294-1:1996, subclause 4.1.1.4, item f). g) See ISO 294-1:1996, subclause 4.1.1.4, item g), but with reference to ISO 6603. The main dimensions, in millimetres, of the cavities shall be as follows (see also Figure 2): length: 60 to 62; width: 60 to 62; depth: type D2 moul

39、d 2,0 to 2,1 type D1 mould 1,0 to 1,1. h) to j) See ISO 294-1:1996, subclause 4.1.1.4, items h) to j). k) Figure 2 shows the position of a pressure sensor P within the cavity, which is mandatory for the measurement of moulding shrinkage only (see ISO 294-4). It may be useful, however, in controlling

40、 the injection period with any ISO mould see ISO 294-1:1996, subclause 4.1.1.4, item k). The pressure sensor shall be flush with the cavity surface in order to avoid interference of the melt flow. I) to n) See ISO 294-1:1996, subclause 4.1.1.4, items l) to n). NOTE 1 Gates which are severely limited

41、 in height have a great influence on the orientation of the material within the cavity, even at large distances from the gate. The change in height at the gate has therefore been fixed at a value which facilitates subsequent measurement of the moulding shrinkage (see ISO 294-4). NOTE 2 The height an

42、d length of the gate strongly influence the process of solidification of the melt as it flows into the cavity, and hence the moulding shrinkage (see ISO 294-4). The dimensions of the gate are therefore defined with tight tolerances. NOTE 3 The value specified for the gate length l Gallows the two te

43、st specimens to be cut from the runners with a fixed distance l Cbetween the cuts (see Figure 1), even when the moulding shrinkage varies from one material to another. NOTE 4 The distance l Cbetween the lines along which the test specimens are cut from the runners (see Figure 1) is given by l C= 2(l

44、 G+ l R+ l*) (see Figure 2). Taking this distance as 80 mm gives the advantage that the same cutting machine can be used to cut 80 mm 10 mm 4 mm bars from the central sections of multipurpose test specimens see ISO 294-1:1996, subclause 4.1.1.4, item l). ENISO2943:2003IS-492 O3:(2002)E I SO 2002 All

45、 irthgs ersedevr 3Key Sp Sprue G Gate l Cis the distance between the lines along which the test specimens are cut from the runners (see 4.1, notes 3 and 4) Moulding volume V M 23 000 mm 3(at 2 mm thickness) Projected area A P 11 000 mm 2Figure 1 Cavity plate for type D1 and D2 ISO moulds Table 1 Dim

46、ensions of plates produced with type D1 and D2 ISO moulds Dimensions in millimetres l Length of plate 60 2 ab Width of plate 60 2 ah Thickness of plate: type D1 mould 1,0 0,1 type D2 mould 2,0 0,1 al GLength of gate 4,0 0,1 bh GHeight of gate (0,75 0,05) h cl RLength of runner 25 to 30 db RWidth of

47、runner at gate W (b + 6) h RDepth of runner h l* Unspecified distance l PDistance of pressure sensor from gate 5 2 l P+ r Pu 10 el P r PW 0 NOTE The dimensions of the plates given in this table differ from the cavity dimensions given in 4.1 g), because shrinkage may be accounted for by larger mould dimensions compared to the final part dimensions. aThese dimensions are for the preferred test specimen used in ISO 6603. bSee 4.1, notes 2 and 3. cSee 4.1, notes 1 and 2. dSee 4.1, note 4. eWhere r Pis the radius of the sensor.ENISO2943:2003IS-492 O3:(2002