Method for identifying thrust counterforce working point positions and method for rolling rolled material
US11819896B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 8, 2019 |
| Grant date | Nov 21, 2023 |
| Priority date | — |
| Expiry date | Apr 15, 2040 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB21B2038/002
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
There is provided a method for identifying thrust counterforce working point positions of backup rolls of a rolling mill, the method including: changing at least either friction coefficients and inter-roll cross angles between the rolls with an unchanged kiss roll load to cause thrust forces at a plurality of levels to act between the rolls, and measuring thrust counterforces in a roll-axis direction acting on rolls forming at least one of roll pairs other than a roll pair of the backup rolls and measuring backup roll counterforces acting in a vertical direction on the backup rolls at reduction support positions in a kiss roll state; and identifying, based on the measured thrust counterforces, thrust counterforce working point positions of thrust counterforces acting on the backup rolls, using first equilibrium conditional expressions relating to forces acting on the rolls and second equilibrium conditional expressions relating to moments acting on the rolls.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.