Patent ID: 6220068
Filing Date: 2001-04-24
Classification: B21B

Abstract:
A method for reducing an edge drop of a rolled strip in a roll train, the roll train including at least one roll stand, the method comprising the steps of:controlling actuators of the at least one roll stand as a function of an edge drop of a rolled strip which exits the at least one roll stand, the actuators being controlled to reduce the edge drop;measuring the edge drop using at least one edge drop measuring device;determining the edge drop using a roll gap model to set the actuators at particular points of the rolled strip, the particular points being points at which the edge drop is not measured;when the rolled strip is rolled in the roll train, adapting the roll gap model to instantaneously applicable parameters of one of the at least one roll stand and the rolled strip; andmeasuring the edge drop at an number of predetermined points on the rolled strip, wherein the n number is less than or equal to a number of the at least one roll stand.