DIN EN 12814-3-2014 Testing of welded joints of thermoplastics semi-finished products - Part 3 Tensile creep test German version EN 12814-3 2014《热塑性半成品的焊接接头试验 第3部分 拉伸蠕变试验》.pdf
《DIN EN 12814-3-2014 Testing of welded joints of thermoplastics semi-finished products - Part 3 Tensile creep test German version EN 12814-3 2014《热塑性半成品的焊接接头试验 第3部分 拉伸蠕变试验》.pdf》由会员分享,可在线阅读,更多相关《DIN EN 12814-3-2014 Testing of welded joints of thermoplastics semi-finished products - Part 3 Tensile creep test German version EN 12814-3 2014《热塑性半成品的焊接接头试验 第3部分 拉伸蠕变试验》.pdf(27页珍藏版)》请在麦多课文档分享上搜索。
1、July 2014 Translation by DIN-Sprachendienst.English price group 13No 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).ICS 2
2、5.160.40!%7?“2202891www.din.deDDIN EN 12814-3Testing of welded joints of thermoplastics semi-finished products Part 3: Tensile creep test;English version EN 12814-3:2014,English translation of DIN EN 12814-3:2014-07Prfen von Schweiverbindungen aus thermoplastischen Kunststoffen Teil 3: Zeitstand-Zug
3、versuch;Englische Fassung EN 12814-3:2014,Englische bersetzung von DIN EN 12814-3:2014-07Essais des assemblages souds sur produits semi-finis en thermoplastiques Partie 3: Essai de fluage en traction;Version anglaise EN 12814-3:2014,Traduction anglaise de DIN EN 12814-3:2014-07SupersedesDIN EN 12814
4、-3:2005-10www.beuth.deDocument comprises 27 pagesIn case of doubt, the German-language original shall be considered authoritative.06.14 DIN EN 12814-3:2014-07 2 A comma is used as the decimal marker. National foreword This document (EN 12814-3:2014) has been prepared by Technical Committee CEN/TC 24
5、9 “Plastics” (Secretariat: NBN, Belgium). The responsible German body involved in its preparation was the Normenausschuss Schweien und verwandte Verfahren (Welding and Allied Processes Standards Committee), Working Committee NA 092-00-32 AA Fgen von Kunststoffen. Amendments This standard differs fro
6、m DIN EN 12814-3:2005-10 as follows: a) a NOTE has been added for an alternative test using a whole pipe welded sample (Clause 5) making reference to Annex B (informative) “Whole pipe tensile creep rupture test”; b) a NOTE has been added for the sampling procedures (Clause 6) in case of socket joint
7、s with reference to Annex D (informative) “Testing of socket joints”. Previous editions DIN EN 12814-3: 2000-03, 2005-10 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 12814-3 February 2014 ICS 25.160.40 Supersedes EN 12814-3:2000English Version Testing of welded joints in thermoplastics semi-
8、finished products - Part 3: Tensile creep test Essais des assemblages souds sur produits semi-finis en thermoplastiques - Partie 3: Essai de fluage en traction Prfen von Schweiverbindungen aus thermoplastischen Kunststoffen - Teil 3: Zeitstand-Zugversuch This European Standard was approved by CEN on
9、 30 November 2013. CEN members are bound to comply with 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 m
10、ay be obtained on application to the CEN-CENELEC Management 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
11、 to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Icelan
12、d, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Managem
13、ent Centre: Avenue Marnix 17, B-1000 Brussels 2014 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 12814-3:2014 E2 Contents Page Foreword 3 Introduction .4 1 Scope 5 2 Normative references 5 3 Terms and definitions .5 4 Symbols and
14、 designations .5 5 Principle of the test6 6 Sampling procedures 7 7 Dimensions of test specimens .7 8 Cutting and preparation of test specimens 9 9 Mechanical testing 10 10 Test equipment . 10 11 Determination of the long-term welding factor 11 12 Test report . 13 Annex A (informative) Resistance to
15、 slow crack growth . 15 Annex B (informative) Whole pipe tensile creep rupture test 18 Annex C (informative) Minimum creep rupture time of the parent material (ttm) for applicability of the long-term welding factor . 21 Annex D (informative) Testing of socket joints . 22 Bibliography . 25 DIN EN 128
16、14-3:2014-07 EN 12814-3:2014 (E) 3 Foreword This document (EN 12814-3:2014) has been prepared by Technical Committee CEN/TC 249 “Plastics”, 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
17、by endorsement, at the latest by August 2014, and conflicting national standards shall be withdrawn at the latest by August 2014. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for
18、 identifying any or all such patent rights. This document supersedes EN 12814-3:2000. The main changes with respect to the previous edition are listed below: a) addition of a NOTE for an alternative test using a whole pipe welded sample (Clause 5) making reference to Annex B (informative), Whole pip
19、e tensile creep rupture test; b) addition of a NOTE for the sampling procedures (Clause 6) in case of socket joints with reference to Annex D (informative), Testing of socket joints. EN 12814, Testing of welded joints of thermoplastics semi-finished products, is divided into the following parts: Par
20、t 1: Bend test; Part 2: Tensile test; Part 3: Tensile creep test (the present document); Part 4: Peel test; Part 5: Macroscopic examination; Part 6: Low temperature tensile test; Part 7: Tensile test with waisted test specimens; Part 8: Requirements. According to the CEN-CENELEC Internal Regulations
21、, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, L
22、atvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. DIN EN 12814-3:2014-07 EN 12814-3:2014 (E) 4 Introduction The design of welded thermoplastics constructions under static load is based o
23、n the long-term creep rupture with behaviour, specifically the resistance to slow crack growth of the thermoplastics material and the welds. For design purposes, the relevant characteristic values for the welded joints are the “long-term tensile welding factors” to which this European Standard provi
24、des the test method. The long-term tensile welding factors are normally used in conjunction with the creep rupture curve of the parent material, given for example in EN 1778, when designing welded semi-finished products under static load. The long-term tensile welding factor(s), the crack behaviour
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