Method of manufacturing rails

Details Method of manufacturing rails Method of manufacturing rails

1983-10-11

1984-12-04

Stallard, W.

Metal treatment

Compositions

Heat treating

148 124, 148146, 148156, C21D 904, C21D 906

Patent

active

044862431

ABSTRACT:
At the outlet of a hot rolling mill the temperature of a hot rolled rail is reduced to a value not lower than that at which the pearlitic transformation begins in the rail head. The continuously moving rail is then rapidly cooled to below 650.degree. C. so that at least 80% of the austenite-pearlite transformation has occurred at the end of rapid cooling. The rail is then cooled to ambient temperature.

REFERENCES:
patent: 2882191 (1959-04-01), Van Swaal
patent: 3497403 (1970-02-01), Rutherford et al.

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