Process and plant for cold rolling with compensation for ovalization of the rolling rolls
US5799526A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 10, 1996 |
| Grant date | Sep 1, 1998 |
| Priority date | — |
| Expiry date | Jun 10, 2016 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB21B1/40
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A process for the cold rolling of a metal strip between rollers of rolling stands arranged sequentially is provided, along with a plant for its implementation, wherein the process involves: PA1 analyzing, as a function of frequency, a signal from an inter-stand tension measurement sensor corresponding to a level of tension of the metal strip to determine periodic variations in the signal having frequencies corresponding to a speed of rotation of the pair of rollers in a downstream rolling stand and proportional to out-of-roundness defects present in the rollers of the downstream rolling stand; and PA1 compensating for the out-of-roundness defects in the rollers in the downstream rolling stand by adjusting the clamping setting of the rollers in the downstream rolling stand in accordance with a compensation signal, produced by the means for compensating, that is proportional to the periodic variations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.