US 2015/0027599 A1 · RAIL COOLING METHOD AND RAIL COOLING DEVICE

Abstract

A rail cooling method for forcibly cooling a rail by jetting a coolant includes jetting the coolant to a foot back part of the rail from a porous plate nozzle in which a nozzle hole at an end in a width direction is smaller than a nozzle hole at a central part in the width direction and causes a cooling capacity for the end in the width direction of the underside of the base of the rail to be lower than a cooling capacity for the central part in the width direction of the underside of the base of the rail.

Claims4

Dependent claims

A rail cooling method for forcibly cooling a rail by jetting a coolant, the rail cooling method comprising:

jetting the coolant to an underside of the base of the rail from a porous plate nozzle in which a nozzle hole at an end in a width direction is smaller than a nozzle hole at a central part in the width direction and causes a cooling capacity for the end in the width direction of the underside of the base of the rail to be lower than a cooling capacity for the central part in the width direction of the underside of the base of the rail.

Dependencies are inferred from the claim text.

Facts

Application

14/376,236Filed 1 Feb 2013

Priority

JP PCT/JP2012/0523452 Feb 2012

Published

29 Jan 2015

Term ends

Not estimatedThe source records don’t support an estimate.

Classification8 codes

C21D 1/667
Quenching devices: for spray quenching
C21D 1/18
General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering: hardening ; Quenching with or without subsequent…
C21D 9/04
Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor: for rails
C21D 2211/001
Microstructure comprising significant phases: austenite

Rail cooling method and rail cooling device

Life of this patent

Rail cooling method and rail cooling device

Life of this patent

Abstract

Claims4