Hot strip mill cooling system
AssigneeEven Flow Products, Inc.
InventorRichard D. Irwin
Life of this patent
Estimating the term…
Abstract
An apparatus and method for cooling a strip of moving metal in a hot strip mill, or the like, is disclosed. The apparatus utilizes an infrared sensor for measuring a temperature profile across a transverse section of the strip. A coolant manifold is utilized to apply coolant to the metal strip after the temperature is measured from a plurality of independently controllable outlets in the manifold transversely spaced across the strip. A controller adjusts the flow of coolant of the outlets in response to the transverse temperature measurements to selectively cool the strip in order to establish an uniform temperature profile.
Claims25
An apparatus for applying coolant to a segment of a longitudinally moving strip, said apparatus comprising:
- an infrared sensor for measuring the temperature of a segment of the strip at a plurality of locations spaced transversely across the strip;
- a coolant manifold for applying coolant to the segment of strip after the temperature is sensed from a plurality of independently controllable outlets spaced transversely across the strip;
- and
- control means for adjusting the coolant flow rate of each of the outlets in response to the temperature measurement, selectively cooling the strip in order to establish a desired transverse temperature profile.
An apparatus for applying a coolant to a segment of a longitudinally moving metal strip in a hot strip rolling mill, said apparatus comprising:
- an infrared sensor for measuring the temperature of a plurality of transversely spaced apart points on a segment of the metal strip to establish an internal temperature profile across the width of the strip;
- a first coolant manifold for applying cooling to a segment of metal strip after the temperature is sensed from a plurality of independently controllable outlets spaced transversely across the strip;
- control means for adjusting the coolant flow rate of each of the first manifold outlets in response to the temperature sensed, to selectively cool the metal strip in order to establish a desired uniform temperature across the strip, above the critical temperature;
- and
- a second coolant manifold longitudinally spaced after the first manifold for applying additional coolant to the strip to uniformly cool the strip to a selected coiling temperature.
A method of cooling a segment of longitudinally moving strip, comprising:
- sensing the temperature of a segment of moving strip at a plurality of locations transversely spaced thereacross;
- providing a coolant manifold for applying coolant to the segment strip after the temperature is sensed from a plurality of independently controllable outlets space transversely across the strip;
- and
- automatically regulating the coolant flow rate of each of the outlets in response to the sensed temperature to selectively cool the strip in order to establish a desired transverse temperature profile.
A method of cooling a segment of metal strip in a hot strip rolling mill, comprising:
- sensing the temperature of a segment of the metal strip at a plurality of locations spaced transversely thereacross;
- providing a first coolant manifold for applying coolant to the segment of metal strip after the temperature is sensed from a plurality of independently controllable outlets transversely spaced thereacross;
- automatically regulating the coolant flow rate of the first manifold outlets in response to the sensed temperatures to selectively cool the strip to establish a substantially uniform temperature profile above the upper critical temperature of the metal;
- providing a second coolant manifold longitudinally spaced after the first coolant manifold;
- and
- supplying additional coolant to the metal strip using the second coolant manifold to uniformly cool the strip to a selected coiling temperature.
Dependencies are inferred from the claim text.