Apparatus for quenching butt-welded portion of rail

Details Apparatus for quenching butt-welded portion of rail Apparatus for quenching butt-welded portion of rail

1984-07-16

1986-03-04

Brody, Christopher W.

Metallurgical apparatus

With control means responsive to sensed condition

With analyzer or computation means

266 87, 266259, 228 46, C21D 162

Patent

active

045736669

ABSTRACT:
An apparatus for quenching a butt-welded portion of a rail, includes an inverse U-shaped cooling box for covering from above and throughout a butt-welded portion of a rail, and for quenching the butt-welded portion by cooling air. The cooling box is divided into a head cooling chamber, a web left cooling chamber, and a web right cooling chamber each having a plurality of cooling air nozzles directed toward the butt-welded portion. A cooling air supply mechanism supplies cooling air to the cooling box, the cooling air supply mechanism including a cooling air source, a solenoid valve operatively arranged in a cooling air supply pipe, a head cooling air regulating valve, a web cooling air regulating valve, and a valve opening controlling mechanism which opens each of the head cooling air regulating valve and the web cooling air regulating valve according to a predetermined program. A cooling box holding mechanism releasably holds the cooling box at a prescribed position so as to cover the rail throughout the butt-welded portion.

REFERENCES:
patent: 1704410 (1929-03-01), Stedefeld
patent: 2480573 (1949-08-01), Hall
patent: 2538366 (1951-01-01), Kerwin
patent: 3110277 (1963-11-01), Dixon et al.
patent: 3275481 (1966-09-01), Adams, Jr.
patent: 3456333 (1969-07-01), Meier et al.
patent: 4243441 (1981-01-01), Wilson
patent: 4440584 (1984-03-01), Takeshige et al.
patent: 4486248 (1984-12-01), Ackert et al.

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