Method and system for thermal treatment of rails

Details Method and system for thermal treatment of rails Method and system for thermal treatment of rails

2002-09-19

2008-08-26

Yee, Deborah (Department: 1793)

Metal treatment

Process of modifying or maintaining internal physical...

Heating or cooling of solid metal

C148S584000, C148S569000

Reexamination Certificate

active

07416622

ABSTRACT:
In order to obtain a fine-lamellar perlite structure in the edge region of the heads of rails (1), especially hot-rolled rails for carriageways or railways, by specific thermal treatment during cooling from the rolling heat without the formation of bainite, precooling (12) occurs in order to achieve a core temperature of approximately 750-850° C., and the temperature of the more intensively cooled edge region is raised by intermediate heating (13) to at least said core temperature and finally cooled (14).

REFERENCES:
patent: 468788 (1892-02-01), Cloud
patent: 4375995 (1983-03-01), Sugino et al.
patent: 4611789 (1986-09-01), Ackert et al.
patent: 4933024 (1990-06-01), Fukuda et al.
patent: 2919156 (1979-11-01), None
patent: 30 06 695 (1984-03-01), None
patent: 42 37 991 (1994-05-01), None
patent: 0 187 904 (1985-10-01), None
patent: 0 187 904 (1986-07-01), None
patent: 0 612 852 (1994-02-01), None
patent: 0 693 562 (1996-01-01), None
patent: 57137425 (1982-08-01), None
patent: 08252602 (1996-10-01), None

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