Method of shape control of rail during accelerated cooling

Details Method of shape control of rail during accelerated cooling Method of shape control of rail during accelerated cooling

C - Chemistry, Metallurgy

21

D

38/30, 148/54

C21D 9/04 (2006.01) C21D 1/667 (2006.01) C21D 9/06 (2006.01)

Patent

CA 2029467

ABSTRACT A method and apparatus for controlling the shape of a hot railroad rail during accelerated cooling of the rail head. The railroad rail is cooled along its web-base junction at a rate which achieves a pre-selected degree of shape control, while avoiding over-cooling of the upper portion of the web or the tips of the rail base. The apparatus comprises spray means for applying selected volumes of coolant to the web-base junction of the rail oriented about the periphery of the rail. Such apparatus may be used to shape a rail during the accelerated cooling thereof in line with a rolling mill.

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