US 5,706,882 A · Control process for twin-roll continuous casting

Abstract

Control process for twin-roll continuous casting, in which, during casting, the roll separation force (RSF) is measured and the position of the bearings of at least one of the rolls is varied in order to increase or decrease the center-to-center spacing of the rolls, with a view to keeping the force substantially constant, a band (.DELTA.RSF) of force values bracketing a desired nominal force (RSF.sub.0) is predetermined and the position of the bearings is varied more sharply when the value of the measured force lies outside the band than when it lies within the band. Application especially to the twin-roll continuous casting of thin steel strip.

Claims12

Dependent claims

A process for maintaining a substantially constant roll separation force for a continuous casting operation in which a product is cast between two spaced rolls, each of which is rotatably supported on a set of roll bearings, comprising:

providing a predetermined roll separation force band bracketing a desired nominal roll separation force;
measuring a value of the roll separation force as a function of the spacing between the rolls;
and
altering a position of at least one set of roll bearings to vary a center-to-center spacing of the rolls so as to attempt to cause an actual roll separation force to equal the desired nominal roll separation force, wherein the position of the set of roll bearings is altered by a higher rate if the value of the measured separation force lies outside the force band than if the value of the measured separation force lies within the force band.

1 more element

Dependencies are inferred from the claim text.

Control process for twin-roll continuous casting

Life of this patent

Control process for twin-roll continuous casting

Life of this patent

Abstract

Claims12