ДСТУ EN 14587-1:2022 Железные дороги. Инфраструктура. Стыковая сварка новых рельсов. Часть 1. Рельсы класса R220, R260, R260Mn, R320Cr, R350HT, R350LHT, R370CrHT и R400HT на стационарной установке (EN 14587-1...



 ДСТУ EN 14587-1:2022
(EN 14587-1:2018, IDT)

Залізниці. Інфраструктура. Стикове зварювання
нових рейок. Частина 1. Рейки класу R220, R260,
R260Mn, R320Cr, R350HT, R350LHT, R370CrHT і
R400HT на стаціонарній установці

 
   
 
 
     
Не є офіційним виданням.
Офіційне видання розповсюджує національний орган стандартизації
(ДП «УкрНДНЦ» http://uas.gov.ua)

Contents

European foreword

Introduction

1 Scope

2 Normative references

3 Terms and definitions

4 Requirements for the welding process

4.1 General

4.2 Rail end preparation and horizontal alignment requirements

4.3 Clamping force

4.4 Pre-heating

4.5 Final flashing

4.6 Upsetting

4.7 Unclamping

4.8 Slippage

4.9 Welding parameters

4.10 Steps across the weld

4.11 Removal of excess upset

4.12 Post-weld thermal treatment

5 Procedure approval

5.1 General

5.2 Information to be supplied by the purchaser

5.3 Sample preparation

5.4 Approval tests

5.5 Test report

6 Approval of other rail profiles and grades

6.1 General

6.2 Sample preparation

6.3 Approval tests

6.4 Test report

7 Approval of the contractor

7.1 General

7.2 Welding procedure

7.3 Operators

7.4 Supervision

7.5 Weld testing

7.6 Equipment

8 Weld production following procedure approval

8.1 Weld production

8.2 Information supplied by the purchaser

8.3 Rail end preparation and horizontal rail alignment requirements

8.4 Weld parameter monitoring

8.5 Weld identification

8.6 Visual examination

8.7 Steps across the weld

8.8 Finishing

8.9 Weld straightness and flatness

8.10 Bend test

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

Bibliography