METHOD AND APPARATUS FOR HEAT TREATING RAILS

The invention relates to the iron and steel industry. In order to improve the physical and mechanical properties and ensure the straightness of a rail, the rail is preheated from the austenitization start temperature to the austenitization end temperature, then postheated by thermal cycling in the r...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	SHESTAKOV, ANDREY NIKOLAEVICH, GALITSYN, GEORGY ALEXANDROVICH, KHLYST, SERGEY VASILIEVICH, KIRICHKOV, ANATOLY ALEXANDROVICH, PSHENICHNIKOV, PAVEL ALEXANDROVICH, KHLYST, ILYA SERGEEVICH, SERGEEV, SERGEY MIKHAYLOVICH, KOZHEVNIKOV, KONTANTIN GENNADIEVICH, KIRICHENKO, MIKHAIL NIKOLAEVICH, GONTAR, ALEXEY VLADIMIROVICH, IVANOV, ALEXEY GENNADIEVICH, KUSHNAREV, ALEXEY VLADISLAVOVICH, KUZMICHENKO, VLADIMIR MIKHAYLOVICH
Format:	Patent
Sprache:	eng ; fre ; rus
Schlagworte:	CHEMISTRY GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS METALLURGY METALLURGY OF IRON MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	The invention relates to the iron and steel industry. In order to improve the physical and mechanical properties and ensure the straightness of a rail, the rail is preheated from the austenitization start temperature to the austenitization end temperature, then postheated by thermal cycling in the region of alpha-gamma phase transformations and subsequently cooled over its cross section to a temperature that ensures that a fine-grained pearlite structure is produced, wherein heating is controlled continuously and/or discontinuously. After cooling, self-tempering is carried out to relieve stresses, and the rail is cooled first to a temperature of