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Application filed by Закрытое Акционерное Общество "Вея"filedCriticalЗакрытое Акционерное Общество "Вея"
Priority to UAA200810140ApriorityCriticalpatent/UA87084C2/en
Publication of UA87084C2publicationCriticalpatent/UA87084C2/en
The invention relates to ferrous metallurgy and concerns a method for high-speed electro-thermal treatment of rails in linearly elastic stress state. The rails are heated at a speed of 1-50 °C/c to 780-, maintained 10-30 c, a railhead is cooled to 400-, whereupon the rails are cooled through all the cross-section to the temperature not higher . Then they are heated on the tempering to the temperature of 400-, hold not more than 200 c and cooled. A method provides the straightness of rails, increasing of resistance of contact tired destructions and extends the service life of the rails.
UAA200810140A2008-08-062008-08-06Method for heat treatment of rails
UA87084C2
(en)
Pearlite steel rail of high internal hardness type excellent in wear resistance, fatigue failure resistance and delayed fracture resistance and process for production of the same