1、January 2012 Translation by DIN-Sprachendienst.English price group 19No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).IC
2、S 83.080.20!$y+_“1860860www.din.deDDIN EN 15860Plastics Thermoplastic semi-finished products for machining Requirements and test methodsEnglish translation of DIN EN 15860:2012-01Kunststoffe Thermoplastische Halbzeuge fr die spanende Verarbeitung Anforderungen und PrfverfahrenEnglische bersetzung vo
3、n DIN EN 15860:2012-01Plastiques Produits semi-finis thermoplastiques pour usinage Exigences et mthodes dessaiTraduction anglaise de DIN EN 15860:2012-01SupersedesDIN EN 15860:2010-11www.beuth.deIn case of doubt, the German-language original shall be considered authoritative.Document comprises 52 pa
4、ges12.11 DIN EN 15860:2012-01 2 A comma is used as the decimal marker. National foreword This standard has been prepared by Technical Committee CEN/TC 249 “Plastics” (Secretariat: NBN, Belgium). The responsible German body involved in its preparation was the Normenausschuss Kunststoffe (Plastics Sta
5、ndards Committee), Working Committee NA 054-04-02 AA Halbzeuge aus Thermoplasten. This document (EN 15860:2010) is, in terms of content, the continuation of the European draft standard prEN 1549 published in 1994 under the title “General requirements of thermoplastic profiles for machining”, which h
6、as since been withdrawn. This document supersedes the following German Standards: DIN 16809, Hollow rods of circular cross-section of polyester (PETP and PBTP) Dimensions DIN 16978, Polyacetale hollow rods of circular cross-section Dimensions DIN 16980, Thermoplastics rods Dimensions DIN 16983, Holl
7、ow rods of circular cross-section of polyamide (PA) Dimensions DIN 16985, Semi-finished thermoplastics products Technical delivery conditions DIN 16986, Thermoplastics flat bars Dimensions The tables on materials have been updated, including the following modifications to the previous standards list
8、ed above: a) new materials are included; b) the melt flow index (MFI) is now the melt volume-flow rate (MVR); c) impact strength has been deleted; d) technical values have been determined for semi-finished products with defined dimensions to exclude any effects due to crystallinity or geometry; e) t
9、echnical values are average values which manufacturers of semi-finished products continuously determined during production; f) guideline values serve as a basis for the material properties of semi-finished products to be specified by the customer and supplier; g) the following values are given as gu
10、ideline values: 1) density; 2) tensile stress at yield, elongation at break, tensile modulus of elasticity; 3) melting temperature / glass transition temperature; h) guideline values were necessary because these properties are heavily influenced by crystallinity and geometry; i) the following values
11、 have been specified as required values: 1) MVR; 2) viscosity number; j) the MVR and viscosity number are not dependent on the geometry of the product and can be considered as being material-specific. They give a direct indication of the quality of the product; DIN EN 15860:2012-01 3 k) conversion t
12、ables: 1) in the past the conversion of deflection values was not done using the intercept theorem, but using the rule of three, for example; 2) these tables are included in Annex B for better orientation and as an aid; l) determining microporosity: 1) for POM-H and PP, this was based on the definit
13、ion, procedure and limit values as specified in ASTM D 6100; 2) figures and examples are included in Annex A; 3) the limit value is 4 %, as in ASTM D 6100; 4) the limit value applies to the width of the porosity line in relation to the cross-section of the sample, measured on a 100 mm-long specimen;
14、 m) examples: 1) deviation from straightness; 2) dimensional stability; 3) specimen length; n) dimensional stability: 1) modified specimen geometries; 2) modified test temperatures; 3) modified heating time; 4) systematics; 5) results, deviations from old values; 6) examples. The determination of di
15、mensional stability as in the present standard differs considerably from that specified in the previous standards. Specimen geometry has been simplified and measuring points have been relocated to the centre. This seemed expedient in order to simplify production as well as to lay down more specific
16、measuring points. The defined distance from the external diameter (in the case of rods) as previously specified would almost be situated in the edge zone of thicker rods and would be located in the centre of thinner rods. The test temperatures were partially based on those in the ASTM standard. Ther
17、e were no recommendations for the new materials to be included in the present standard, however. These needed to be specified separately. The Working Group considered the most practical solution to be taking the short-term temperatures described in the literature as a basis. This ensured that there
18、would be no thermal damage to specimens during heat treatment despite the longer heating time (equal to the heating time of 6 hours specified in the ASTM standard), which was necessary (as were the heating up and cooling down rates specified here) because the one hour specified in the previous stand
19、ards was insufficient for thicker specimens. All these modifications meant that the previously known values for post-shrinkage were no longer comparable with those determined using the new parameters. In a cooperative test it was established that the latter are sometimes considerably higher than the
20、 older values. Because there was neither enough time nor a significant number of specimens (for various materials, batches, machining parameters, etc.) for fundamental investigations to be carried out, it was decided that the new standard should only give guideline values and that binding values wil
21、l be specified in the next revision if there are a sufficient number of proven values by then. Please note that there is an error in Subclause 5.1, paragraph 9: Microporosity in the centre of the cross-section may occur in semi-finished products made from POM-H and PP. It should read “POM” instead o
22、f “POM-H”. CEN has been informed of the error, and a proposal for a revision of the English version has been submitted to the responsible CEN/TC 249 Secretariat. DIN EN 15860:2012-01 4 Amendments This standard differs from DIN 16809:1980-05, DIN 16978:1975-08, DIN 16980:1987-05, DIN 16983:1980-05, D
23、IN 16985:1989-06 and DIN 16986:1987-05 as follows: a) requirements for the semi-finished products “rods”, “hollow rods”, “sheets” and “strips” (called “rods, hollow bars, and panels/plates” in this standard) are now combined in one document; b) the different forms of semi-finished product are now de
24、fined; c) tolerances have been modified to reflect current technology, diameter and thickness ranges have been extended; d) new materials are now included, as are modified/fibre-reinforced materials, including their dimensional tolerances, straightness tolerances, physical properties (guideline / sp
25、ecified values) and dimensional stability; e) material tables have been updated. Compared with DIN EN 15860:2010-11, the following corrections have been made to the German version only and therefore do not affect the English text: a) DIN 16941:1986-05 has been deleted from the superseding note; b) C
26、lause 1 “Scope”: Prfmethoden fr Rund- Hohl- und Flachstbe has been replaced by Prfverfahren fr Halbzeuge, wie Rund-, Hohl- und Flachstbe (test methods that apply to semi-finished products such as rods, hollow bars and plates); c) Subclause 5.1 “As-delivered condition”: Die Prfung erfolgt nach 6.4 ha
27、s been replaced by Die Prfung des Lieferzustands erfolgt nach 6.4 (The testing of the as-delivered condition shall be performed according to 6.4); d) Subclause 5.2 “Surface appearance”: Die Prfung erfolgt nach 6.5 has been replaced by Die Prfung der Oberflchenbeschaffenheit erfolgt nach 6.5 (Testing
28、 of the surface appearance shall be performed accord-ing to 6.5); e) the terms Durchmessergruppen and Auendurchmessergruppen have been replaced throughout the document by Durchmesserbereiche and Auendurchmesserbereiche (diameter ranges and outside diameter ranges); f) Figures 1, 2, 4a), 4c) and 7 ha
29、ve been replaced; g) Table 3 “Straightness requirements for rods”, column 1: PPS has been added; h) the term Warmlagerung has been replaced throughout the document by Wrmebehandlung (heat treat-ment); i) the German title of Clause 6 “Test methods”, Prfungen has been replaced by Prfverfahren; j) the
30、German title of Subclause 6.6 “Accuracy of the dimension measuring instruments”, Messgenauigkeit fr Halbzeugmae has been replaced by Fehlergrenze der Messgerte; k) the standard has been editorially revised. DIN EN 15860:2012-01 5 Previous editions DIN 16800: 1980-04 DIN 16802: 1980-05 DIN 16807: 198
31、0-05 DIN 16809: 1980-05 DIN 16811: 1980-05 DIN 16813: 1980-03 DIN 16814: 1980-05 DIN 16818: 1984-02 DIN 16974: 1980-05 DIN 16975: 1972-10, 1974-09 DIN 16977: 1973-10, 1980-05 DIN 16978: 1975-08 DIN 16979: 1977-09 DIN 16980: 1971-06, 1974-09, 1980-05, 1987-05 DIN 16983: 1974-08, 1980-05 DIN 16985: 19
32、78-03, 1989-06 DIN 16986: 1980-05, 1987-05 DIN EN 15860: 2010-11 DIN EN 15860:2012-01 6 This page is intentionally blank EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 15860 June 2010 ICS 83.080.20 English Version Plastics - Thermoplastic semi-finished products for machining - Requirements and
33、 test methods Plastiques - Produits semi-finis thermoplastiques pour usinage - Exigences et mthodes dessai Kunststoffe - Thermoplastische Halbzeuge fr die spanende Verarbeitung - Anforderungen und PrfmethodenThis European Standard was approved by CEN on 19 May 2010. CEN members are bound to comply w
34、ith the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN Management
35、Centre or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as the off
36、icial versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Sl
37、ovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. Management Centre: Avenue Marnix 17, B-1000 Brussels 2010 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 15860:2010: EEUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EU
38、ROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG 2 Contents Page Foreword .4 1 Scope 5 2 Normative references5 3 Terms and definitions .6 4 Materials .6 5 Requirements.8 5.1 As-delivered condition8 5.2 Surface appearance.8 5.3 Dimensions and tolerances for rods .8 5.3.1 Diameter .8 5.3.2 Length
39、.10 5.3.3 Roundness .10 5.3.4 Straightness .11 5.4 Dimensions and tolerances for hollow bars.12 5.4.1 Diameters .12 5.4.2 Length.14 5.4.3 Roundness .14 5.4.4 Straightness .14 5.4.5 Concentricity15 5.5 Dimensions and tolerances for panels/plates 16 5.5.1 Thickness .16 5.5.2 Length and width.17 5.5.3
40、Straightness .17 5.6 Properties .20 5.6.1 Physical properties20 5.6.2 Dimensional stability after heat treatment24 5.6.3 Physiological behaviour .26 6 Test methods .26 6.1 Test conditions 26 6.2 Sampling size.26 6.3 Test specimen preparation.26 6.3.1 Mechanical properties.26 6.3.2 Density28 6.3.3 Me
41、lt volume-flow rate, viscosity number, melting temperature/glass transition temperature 28 6.3.4 Dimensional stability after heat treatment28 6.4 As-delivered condition29 6.5 Surface appearance.29 6.6 Accuracy of the dimension measuring instruments29 6.7 Density29 6.8 Tensile stress at yield and elo
42、ngation at break29 6.9 Tensile modulus of elasticity .30 6.10 Vicat softening temperature .30 6.11 Melt volume-flow rate (MVR) 30 6.12 Melting temperature/glass transition temperature.31 6.13 Viscosity number.31 6.14 Dimensional stability after heat treatment31 6.15 Preparation of test results 35 EN
43、 15860:2010 (E)DIN EN 15860:2012-01 3 7 Designation 35 7.1 Rods35 7.2 Hollow bars 35 7.3 Panels/plates36 8 Marking.36 Annex A (normative) Procedure for the determination of microporosity in semi-finished products .37 Annex B (normative) Tables for the conversion of deflection values (straightness)41
44、 Annex C (informative) Examples of calculation of dimensional stability after heat treatment.44 C.1 Rods44 C.2 Hollow bars 44 C.3 Panels/plates45 Bibliography46 EN 15860:2010 (E)DIN EN 15860:2012-014 Foreword This document (EN 15860:2010) has been prepared by Technical Committee CEN/TC 249 “Plastics
45、”, the secretariat of which is held by NBN. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by December 2010, and conflicting national standards shall be withdrawn at the latest by December 2010. Att
46、ention is drawn to the possibility that some of the elements of this document may be the subject of patent rights other than those identified above. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. According to the CEN/CENELEC Internal Regulations, the
47、national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherla
48、nds, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. EN 15860:2010 (E)DIN EN 15860:2012-01 5 1 Scope This European Standard specifies the requirements and associated test methods that apply to semi-finished products such as rods, hollow bars and plates made from thermoplastic materials. These semi-finished products are used predominantly for the manufacture of finished parts by means of machining. 2 Normative references The following referenced docume
