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UNI EN 14587-2 : 2009

Current
Current

The latest, up-to-date edition.

RAILWAY APPLICATIONS - TRACK - FLASH BUTT WELDING OF RAILS - PART 2: NEW R220, R260, R260MN AND R350HT GRADE RAILS BY MOBILE WELDING MACHINES AT SITES OTHER THAN A FIXED PLANT
Published date

10-08-2009

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Requirements for the welding process
  4.1 General
  4.2 Clamping force
  4.3 Pre-heating - flashing
  4.4 Progressive flashing
  4.5 Upsetting
  4.6 Upset current
  4.7 Unclamping
  4.8 Welding program and records
  4.9 Step across the weld
  4.10 Weld trimming
  4.11 Post-weld heat treatment
5 Procedure approval of a MFBW machine
  5.1 General
  5.2 Sample preparation
  5.3 Approval tests
  5.4 Test result report
6 Approval of other rail profiles or grade
  6.1 General
  6.2 Approval tests
7 Approval of the Welding Contractor
  7.1 General
  7.2 Requirements for initial approval
  7.3 Field approval of the welding contractor
  7.4 Audits
8 Weld production and acceptance requirements
  8.1 Information from the purchaser
  8.2 Site preparation of rail ends
  8.3 Rail alignment
  8.4 Weld parameter monitoring
  8.5 Weld identification
  8.6 Visual inspection
  8.7 Steps across the weld
  8.8 Profile finishing of the rail head
  8.9 Geometrical acceptance criteria
  8.10 Weld production testing
  8.11 Documentation
Annex A (normative) - Bend test requirements
Annex B (normative) - Test weld fracture faces - Recording
        of defects
Annex C (normative) - Fatigue test method for flash butt welds
Annex D (normative) - Macro examination and micro
        examination
Annex E (normative) - Hardness testing
Annex ZA (informative) - Relationship between this European
         Standard and the Essential Requirements of EU
         Directive 2008/57/EC
Bibliography

Describes requirements for the approval of a welding process by a MFBW machine at sites other than fixed plant, as well as the welding contractor together with the requirements for subsequent welding production.

Committee
CT 50
DocumentType
Standard
PublisherName
Ente Nazionale Italiano di Unificazione (UNI)
Status
Current

Standards Relationship
EN 14587-2:2009 Identical

ISO 6507-1:2005 Metallic materials Vickers hardness test Part 1: Test method
EN ISO 9001:2015 Quality management systems - Requirements (ISO 9001:2015)
EN 13674-1:2011+A1:2017 Railway applications - Track - Rail - Part 1: Vignole railway rails 46 kg/m and above
ISO 7500-1:2015 Metallic materials Calibration and verification of static uniaxial testing machines Part 1: Tension/compression testing machines Calibration and verification of the force-measuring system
EN 14587-1:2007 Railway applications - Track - Flash butt welding of rails - Part 1: New R220, R260, R260Mn and R350HT grade rails in a fixed plant
EN 571-1:1997 Non destructive testing - Penetrant testing - Part 1: General principles
EN 1290:1998/A2:2003 NON-DESTRUCTIVE EXAMINATION OF WELDS - MAGNETIC PARTICLE EXAMINATION OF WELDS

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