Method and apparatus of stably controlling rolling mill
US6082161A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 21, 1999 |
| Grant date | Jul 4, 2000 |
| Priority date | — |
| Expiry date | Jul 21, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB21B37/68
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
In a stabilization control of rolling, proportional differential control of snake motion of a to-be-rolled material caused during a rolling process, is achieved on the basis of a lateral deviation of loads which are detected by load sensors disposed on a rolling mill, an instruction value for lateral deviation leveling is calculated from the lateral deviation and given to a draft device, and a roll gap is adjusted on the basis of the instruction value to stabilize the snake motion of the to-be-rolled material. A stabilization low-pass filter having a pole time constant substantially equal to a zero-point time constant of operation frequency characteristics of the rolling mill is employed in the proportional control.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.