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CEN
EN 14730-1:2017

EN 14730-1:2017

Current

Current

The latest, up-to-date edition.

Railway applications - Track - Aluminothermic welding of rails - Part 1: Approval of welding processes

Published date

01-03-2017

Publisher

Comite Europeen de Normalisation

European Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Information to be supplied by the railway authority
5 Approval procedure
6 Re-approval following process changes
7 Laboratory tests
Annex A (informative) - Steps in approval
Annex B (informative) - Suggested sequence of laboratory
        Tests
Annex C (normative) - Procedure for Fry etching
Annex D (informative) - Procedure for measurement of
        surface hardness
Annex E (normative) - Procedure for slow bend test
Annex F (normative) - Procedure for recording test
        weld fracture face defects
Annex G (normative) - Ultrasonic inspection procedure
        on aluminothermic welds to be Sectioned
Annex H (normative) - Procedure for microscopic
        examination of the visible heat affected
        zone and fusion zone of welds
Annex I (normative) - Procedure for measurement
        of the heat softened zone width
Annex J (normative) - Fatigue test methods for
        aluminothermic welds
Annex K (informative) - Adeviations
Bibliography

This European Standard defines the laboratory tests and requirements for approval of an aluminothermic welding process using welds produced in workshop conditions.It applies to the joining of new, Vignole rails as described in EN 13674 1 of the same profile and steel grade.Compliance with the requirements of this standard does not of itself ensure the suitability of a welding process for specific conditions of track and traffic.The standard does not cover welds made between different rail sections, differently worn rails and different rail grades.In addition to the definitive requirements this standard also requires the items detailed in Clause 4 to be documented. For compliance with this standard, it is important that both the definitive requirements and the documented items be satisfied.

Committee
CEN/TC 256
DocumentType
Standard
PublisherName
Comite Europeen de Normalisation
Status
Current

EN 14730-2 : 2006 RAILWAY APPLICATIONS - TRACK - ALUMINOTHERMIC WELDING OF RAILS - PART 2: QUALIFICATION OF ALUMINOTHERMIC WELDERS, APPROVAL OF CONTRACTORS AND ACCEPTANCE OF WELDS
BS EN 14730-2:2006 Railway applications. Track. Aluminothermic welding of rails Qualifications of aluminothermic welders, approval of contractors and acceptance of welds
ONORM EN 13231-2 : 2006 RAILWAY APPLICATIONS - TRACK - ACCEPTANCE OF WORKS - PART 2: WORKS ON BALLASTED TRACK - SWITCHES AND CROSSINGS
I.S. EN 14730-2:2006 RAILWAY APPLICATIONS - TRACK - ALUMINOTHERMIC WELDING OF RAILS - PART 2: QUALIFICATION OF ALUMINOTHERMIC WELDERS, APPROVAL OF CONTRACTORS AND ACCEPTANCE OF WELDS

ISO 6507-1:2005 Metallic materials Vickers hardness test Part 1: Test method
EN ISO 6506-1:2014 Metallic materials - Brinell hardness test - Part 1: Test method (ISO 6506-1:2014)
ISO 6506-1:2014 Metallic materials Brinell hardness test Part 1: Test method
ISO 9712:2012 Non-destructive testing Qualification and certification of NDT personnel
EN ISO 9712:2012 Non-destructive testing - Qualification and certification of NDT personnel (ISO 9712:2012)
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

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