SIST EN 14587-1:2019

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Železniške naprave - Infrastruktura - Elektrouporovno varjenje novih tirnic - 1. del: Varjenje tirnic kakovosti R220, R260, R260Mn, R320Cr, R350HT, R350LHT, R370CrHT in R400HT v varilniciBahnanwendungen - Infrastruktur - Abbrennstumpfschweißen von Schienen - Teil 1: Schweißen neuer Schienen der Stahlsorte R220, R260, R260Mn, R320Cr, R350HT, R350LHT, R370CrHT und R400HT in einer stationären AnlageApplications ferroviaires - Voie - Soudage des rails neufs par étincelage - Partie 1 : R220, R260, R260Mn, R320Cr, R350HT, R350LHT, R370CrHT et R400HT dans une installation fixeRailway applications - Infrastructure - Flash butt welding of new rails - Part 1: R220, R260, R260Mn, R320Cr, R350HT, R350LHT, R370CrHT and R400HT grade rails in a fixed plant93.100Gradnja železnicConstruction of railways45.080Rails and railway components25.160.10Varilni postopki in varjenjeWelding processesICS:Ta slovenski standard je istoveten z:EN 14587-1:2018SIST EN 14587-1:2019en,fr,de01-februar-2019SIST EN 14587-1:2019SLOVENSKI
STANDARDSIST EN 14587-1:20071DGRPHãþD

EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 14587-1
December
t r s z ICS
t wä s x rä s râ
{ uä s r r Supersedes EN
s v w z yæ sã t r r yEnglish Version
Railway applications æ Infrastructure æ Flash butt welding of new rails æ Part
sã R t t rá R t x rá R t x rMná R u t rCrá R u w rHTá R u w rLHTá R u y rCrHT and R v r rHT grade rails in a fixed plant Applications ferroviaires æ Infrastructure æ Soudage des rails neufs par ßtincelage æ Partie
sã Rails de nuances R t t rá R t x rá R t x rMná R u t rCrá R u w rHTá R u w rLHTá R u y rCrHT et R v r rHT dans une installation fixe
Bahnanwendungen æ Infrastruktur æ Abbrennstumpfschweißen von Schienen æ Teil
sã Schweißen neuer Schienen der Stahlsorte R t t rá R t x rá R t x rMná R u t rCrá R u w rHTá R u w rLHTá R u y rCrHT und R v r rHT in einer stationären Anlage This European Standard was approved by CEN on
s y September
t r s zä
egulations which stipulate the conditions for giving this European Standard the status of a national standard without any alterationä Upætoædate lists and bibliographical references concerning such national standards may be obtained on application to the CENæCENELEC Management Centre or to any CEN memberä
translation under the responsibility of a CEN member into its own language and notified to the CENæCENELEC Management Centre has the same status as the official versionsä
CEN members are the national standards bodies of Austriaá Belgiumá Bulgariaá Croatiaá Cyprusá Czech Republicá Denmarká Estoniaá Finlandá Former Yugoslav Republic of Macedoniaá Franceá Germanyá Greeceá Hungaryá Icelandá Irelandá Italyá Latviaá Lithuaniaá Luxembourgá Maltaá Netherlandsá Norwayá Polandá Portugalá Romaniaá Serbiaá Slovakiaá Sloveniaá Spainá Swedená Switzerlandá Turkey and United Kingdomä
EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
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Rue de la Science 23,
B-1040 Brussels
t r s z CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Membersä Refä Noä EN
s v w z yæ sã t r s z ESIST EN 14587-1:2019

Bend test requirements . 23 Annex B (normative)
Test weld fracture faces – Recording of defects . 25 Annex C (normative)
Fatigue test method for flash butt welds . 27 C.1 General . 27 C.2 Test equipment . 27 C.3 Calibration . 29 C.3.1 General . 29 C.3.2 Test piece . 29 C.4 Fatigue test method . 29 C.4.1 General . 29 C.4.2 Staircase test method . 29 C.4.3 Example of the data analysis of a fatigue strength determination by the staircase method . 32 C.4.4 Past-the-post test method . 32 Annex D (normative)
Macro examination and micro examination . 34 D.1 Macro examination . 34 D.2 Micro examination . 34 Annex E (normative)
Hardness testing . 36 Bibliography . 37
IEC Electropedia: available at http://www.electropedia.org/
ISO Online browsing platform: available at http://www.iso.org/obp
3.1 as-welded condition rails that have been welded and trimmed only 3.2 contractor company approved by a railway authority to provide staff and machinery to execute the production of flash butt welds in a fixed plant, which may include staff and machinery from within the railway authority 3.3 die burn damage caused by localized overheating (arcing) on the surface of the rail due to poor contact between the rail and electrode during welding SIST EN 14587-1:2019

Where the step arises from the rail dimensions the rail foot tips may be dressed locally to achieve this requirement. SIST EN 14587-1:2019

a)
b) Key A running surface B nibbed straight edge C weld upset centreline Z detail view of the step NOTE Step = [x-y] mm. Figure 1 — Measurement of the step with nibbed straight edge SIST EN 14587-1:2019

Figure 2 — Gauge for measuring the step 4.11 Removal of excess upset a) Excess upset should be automatically trimmed. If not possible, the upset shall be removed by grinding. b) Removal of the excess upset shall not cause any mechanical or thermal damage to the rails. c) The surface of the trimmed area shall be free from visible transverse cracking. d) Removal of the excess upset shall be completed in such a manner to keep the joint in compression. e) Any dressing of the weld following the removal of upset shall not cause damage to the rail or weld nor reduce either to a dimension below the original rail profile. f) The maximum thickness of the trimmed upset shall be as set out in Table 2 below and shown in Figure 3. A suggested measurement gauge is shown in Figure 4. Table 2 — Maximum permitted trimmed upset Zone Position of trimmed upset about the weld Maximum permitted upset (in millimetres) A Full head profile from the lower corner on the gauge face to the lower corner on the opposite face 2,5 B The fishing surface on the underside of the head 3,0 C The web, including the top fillet radius and extending down to the start of the bottom fillet radius 2,5 D The foot, including the start of the bottom fillet radii in the web and extending to the foot tips and completely across the underside of the rail foot 2,0 SIST EN 14587-1:2019

Key A zone A – rail head B zone B – on the underside of the rail head C zone C – web of the rail D zone D – foot of the rail Figure 3 — Maximum permitted trimmed upset SIST EN 14587-1:2019

Key A zone A – rail head B zone B – on the underside of the rail head C zone C – web of the rail D zone D – foot of the rail Figure 4 — Gauge for measuring upset 4.12 Post-weld thermal treatment With the exception of R220 and R260 rail grades it may be necessary to conduct a post-weld thermal treatment. This may involve either an accelerated (forced) cooling process or additional heat input. 5 Procedure approval 5.1 General Procedure approval shall be carried out by testing weld samples produced in accordance with this European Standard. Procedure approval testing shall be carried out on the rail profile and grade specified by the purchaser, see 5.2. All test results and weld fracture faces shall be made available for inspection. 5.2 Information to be supplied by the purchaser The following information shall be supplied by the purchaser: a) the rail profile; b) the rail grade; c) the straightness class as in EN 13674-1; d) running edge requirements and identification – left, right or centre alignment; e) alignment class/classes, according to Table 4; f) the type of fatigue test. SIST EN 14587-1:2019
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