Hot tandem rolling mill
US5950478A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 26, 1998 |
| Grant date | Sep 14, 1999 |
| Priority date | — |
| Expiry date | May 26, 2018 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB21B1/26
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
There are provided an even number of paired roll-shift type rolling mills 12a, 12b and a controller 16 for controlling the rolling mills 12a, 12b. Each of upper and lower work rolls 13 of each of the roll-shift type rolling mills has a predetermined crown curve and has a roll shifting mechanism 14 for axially shifting the upper and lower work rolls relative to each other. The controller 16 determines a shift amount of each rolling mill in order to obtain a predetermined cross section shape of a steel plate, shifts the work rolls of the rolling mill on the upstream side paired every rolling coil to thereby disperse wear on the roll surface, and moves the work rolls of the rolling mill on the downstream side of the pair in a predetermined direction by the same distance, thereby canceling the change in the cross section shape of the plate caused by the shifting operation for the wear dispersion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.