Method of flatness control of a strip and a control system therefor
US9399245B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 27, 2012 |
| Grant date | Jul 26, 2016 |
| Priority date | — |
| Expiry date | Jan 4, 2034 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB21B38/02
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A method of providing flatness control for rolling a strip in a mill including a plurality of rolls controllable by actuators. The method includes the steps of: receiving flatness measurement data pertaining to a flatness of the strip; determining a flatness error as a difference between a reference flatness of the strip and the flatness measurement data; determining an adjusted flatness error based on the flatness error and weights for actuator position combinations which provide a flatness effect below a threshold value; and utilizing the adjusted flatness error for the control units to control the actuators to thereby control the flatness of the strip. A computer program product and a control system for carrying out the above method are also presented herein.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.