Procedure for the thermal treatment of rails
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United States of America Patent
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Jun 18, 2002
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N/A
app pub date -
Sep 26, 1995
filing date -
Jul 15, 1992
priority date (Note) -
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Abstract
A method for the thermal treatment of rails, in particular of the rail head, in which cooling is carried out in a cooling agent that contains a synthetic cooling agent additive, starting at temperatures above 720.degree. C. The treatment is carried out by immersion in the cooling agent until withdrawl of the immersed areas, courses, at a surface temperature between 450 and 550.degree. C. results without temperature equalization across the whole of the cross-section, section, there by avoiding hardening of the rail web whilst maintaining an optimal cooling rate for the rail head.
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