EN 14587-1:2007

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Železniške naprave - Zgornji ustroj - Elektro uporovno varjenje tirnic - 1. del: Varjenje novih tirnic kakovosti R 220, R 260, R 260 Mn in R 350 HT v varilniciBahnanwendungen - Oberbau - Abbrennstumpfschweißen von Schienen -Teil 1: Abbrennstumpfschweißen neuer Schienen der Güte R220, R260, R260Mn und R350HT in einem SchweißwerkApplications ferroviaires - Voie - Soudage des rails par étincelage - Partie 1: Rails neufs de nuances R220, R260, R260Mn et R350HT dans une installation fixeRailway applications - Track - Flash butt welding of rails - Part 1: New R220, R260, R260Mn and R350HT grade rails in a fixed plant93.100Gradnja železnicConstruction of railways25.160.10Varilni postopki in varjenjeWelding processesICS:Ta slovenski standard je istoveten z:EN 14587-1:2007SIST EN 14587-1:2007en,fr,de01-september-2007SIST EN 14587-1:2007SLOVENSKI
STANDARD
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 14587-1June 2007ICS 25.160.10; 93.100 English VersionRailway applications - Track - Flash butt welding of rails - Part 1:New R220, R260, R260Mn and R350HT grade rails in a fixedplantApplications ferroviaires - Voie - Soudage des rails parétincelage - Partie 1: Rails neufs de nuances R220, R260,R260Mn et R350HT dans une installation fixeBahnanwendungen - Oberbau - Abbrennstumpfschweißenvon Schienen -Teil 1: Abbrennstumpfschweißen neuerSchienen der Güte R220, R260, R260Mn und R350HT ineinem SchweißwerkThis European Standard was approved by CEN on 3 May 2007.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the CEN 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 translationunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as theofficial versions.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2007 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 14587-1:2007: ESIST EN 14587-1:2007

Bend test requirements.21 Annex B (normative)
Test weld fracture faces – Recording of defects.23 Annex C (normative)
Fatigue test method for flash butt welds.25 C.1 Scope.25 C.2 Test equipment.25 C.3 Calibration procedure.27 C.3.1 General.27 C.3.2 Test piece.27 C.3.3 Test piece preparation.27 C.3.4 Instrumentation.27 C.3.5 Procedure.27 C.4 Fatigue test method.31 C.4.1 General.31 C.4.2 Staircase testing method.31 C.4.3 Example of the data analysis of a fatigue strength determination by the staircase method.33 C.4.4 Past-the-post testing method.34 Annex D (normative)
Macro examination and micro examination.36 D.1 Macro examination.36 D.2 Micro examination.36 Annex E (normative)
Hardness testing.37 Bibliography.38
NOTE Where the step arises from the rail dimensions the rail foot tips may be dressed locally to achieve this requirement. SIST EN 14587-1:2007

Detail Z Key A running surface B nibbed straight edge C weld upset centre line NOTE Step = |x-y| mm. Figure 1 — Measurement of the step 5.10 Removal of excess upset
5.10.1 Excess upset shall be automatically trimmed. 5.10.2 Removal of the excess upset shall not cause any mechanical or thermal damage to the rails. 5.10.3 The surface of the trimmed area shall be free from visible cracking. 5.10.4 The weld shall be in compression during the removal of excess upset. 5.10.5 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. 5.10.6 The maximum thickness of the trimmed upset shall be as set out in Table 2 below and shown in Figure 2. SIST EN 14587-1:2007

Full head profile from the lower corner on the gauge face to the lower corner on the opposite face 2
The fishing surface on the underside of the head 2,5
The web, including the top fillet radius and extending down to the start of the bottom fillet radius 2
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 1,5
Where there is a difference in the rail dimensions, the trimmed upset shall be measured in relation to the rail giving the maximum protruding surface. If the values of the trimmed upset are above the maximum values, the trimmed upset shall be dressed locally to the required values without damaging the parent rails. Dimensions in millimetres
Key
Zone
– rail head
Zone
- on the underside of the rail head
Zone
– web of the rail
Zone
– foot of the rail Figure 2 — Maximum permitted trimmed upset SIST EN 14587-1:2007

6.3 Sample preparation For the specified rail profile and grade, five welds in the as-welded conditions (see 3.1) shall be manufactured. SIST EN 14587-1:2007
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