APPLICATION OF WELDS ON THE HIGH-CARBON STEEL RAILS

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

APPLICATION OF WELDS ON THE HIGH-CARBON STEEL RAILS

Popis výsledku v původním jazyce

This paper deals with welding on high-carbon steel that is used for the production of tram and railway tracks. The high-quality and efficient maintenance of the track superstructure, especially the refurbishing of worn rails, is an integral part of the operation of rail transport. The rails are subjected to wear and tear and their overall replacement is wasteful and time-consuming, too. Therefore, refurbishing technologies are used that enable us to extend the lifetime of parts applied in technical practice. During the actual operation, the rails are worn out considerably in exposed places, such as the tramway curves in city transport or railway turnouts and frogs of both tram and railway lines. When welding the rails, the aim is to achieve better wear resistance and, at the same time, to comply with all conditions and regulations for rail transport. This article presents new findings concerning the application of an interlayer with additional material that is different from the additional weld deposit material itself. Furthermore, it deals with the study of transition areas and their influence on the structure in the areas of weld metal, the interlayer, the heat affected zone and base material and mapping the influence on hardness and microhardness. Welding on worn rails using suitable technology can guarantee the unlimited repeatability of welding on further worn weld deposits. The paper evaluates the weld deposits with various additional materials under different welding conditions with the aim of improving the quality of rail refurbishing.

Název v anglickém jazyce

APPLICATION OF WELDS ON THE HIGH-CARBON STEEL RAILS

Popis výsledku anglicky

This paper deals with welding on high-carbon steel that is used for the production of tram and railway tracks. The high-quality and efficient maintenance of the track superstructure, especially the refurbishing of worn rails, is an integral part of the operation of rail transport. The rails are subjected to wear and tear and their overall replacement is wasteful and time-consuming, too. Therefore, refurbishing technologies are used that enable us to extend the lifetime of parts applied in technical practice. During the actual operation, the rails are worn out considerably in exposed places, such as the tramway curves in city transport or railway turnouts and frogs of both tram and railway lines. When welding the rails, the aim is to achieve better wear resistance and, at the same time, to comply with all conditions and regulations for rail transport. This article presents new findings concerning the application of an interlayer with additional material that is different from the additional weld deposit material itself. Furthermore, it deals with the study of transition areas and their influence on the structure in the areas of weld metal, the interlayer, the heat affected zone and base material and mapping the influence on hardness and microhardness. Welding on worn rails using suitable technology can guarantee the unlimited repeatability of welding on further worn weld deposits. The paper evaluates the weld deposits with various additional materials under different welding conditions with the aim of improving the quality of rail refurbishing.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20301 - Mechanical engineering

Projekt

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Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2019

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

METAL 2019 : conference proceedings : peer reviewed : 28th International Conference on Metallurgy and Materials : May 22nd-24th 2019, Hotel Voronez I, Brno, Czech Republic, EU

ISBN

978-80-87294-92-5

ISSN

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e-ISSN

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Počet stran výsledku

7

Strana od-do

1003-1009

Název nakladatele

Tanger

Místo vydání

Ostrava

Místo konání akce

Brno

Datum konání akce

22. 5. 2019

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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