Thickness control method and apparatus for a rolling mill
US4187707A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 25, 1978 |
| Grant date | Feb 12, 1980 |
| Priority date | — |
| Expiry date | Sep 25, 1998 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB21B1/26
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
This disclosure relates to a process for the regulation of the thickness of a flat product such as a strip, sheet or plate, being rolled in a hot tandem rolling mill, and the corresponding regulation device for carrying out the process. Regarding each stand of the rolling mill on which the adjustment is being performed, a constant rolling pressure is maintained, the gap is measured, the deviation between the measured gap and a set value corresponding to a desired thickness of the product is determined, and the necessary correction of the value of the tensile force applied on the product between the stand under consideration and the upstream stand in order to bring the gap back to its set value is determined. Finally, this correction of the tensile force between the stand under consideration and the upstream stand is performed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.