Patent ID: 8365562
Filing Date: 2013-02-05
Classification: B21B,Y10T

Abstract:
1. A method of producing thin cast strip with a controlled strip geometry by continuous casting comprising: (a) assembling a thin strip caster having a pair of casting rolls having a nip therebetween; (b) assembling a metal delivery system capable of forming a casting pool between the casting rolls above the nip with side dams adjacent the ends of the nip to confine the casting pool; (c) assembling a hot rolling mill downstream of the thin strip caster having work rolls with work surfaces forming a roll gap between them through which incoming hot strip from the thin strip caster is rolled, the work rolls having work roll surfaces relating to a desired shape across the work rolls; (d) assembling a device capable of affecting the geometry of the strip exiting the hot rolling mill in response to control signals; (e) assembling a control system capable of calculating a differential strain feed-back from longitudinal strain in the strip by comparing an exit thickness profile with a target thickness profile derived from a measured entry thickness profile and generating control signals in response to at least the calculated differential strain feed-back; and (f) connecting the control system to the device capable of affecting the geometry of the strip exiting the hot rolling mill in response to the generated control signals from the control system.