Cross angle identification method, cross angle identification device, and rolling mill
US11192157B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 28, 2018 |
| Grant date | Dec 7, 2021 |
| Priority date | — |
| Expiry date | Oct 1, 2038 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB21B2269/04
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
The present invention provides a method for identifying an inter-roll cross angle in a rolling mill of four-high or more including at least a pair of work rolls and a pair of backup rolls by, when rolling is not performed, applying a roll bending force to apply a load between rolls of an upper roll assembly including the work roll on the upper side and between rolls of a lower roll assembly including the work roll on the lower side, in a state where a roll gap between the work rolls is put into an open state, detecting vertical roll loads that act in the vertical direction on the rolling support positions on the working side and the driving side of at least one of the backup roll on the upper side or the backup roll on the lower side, and calculating a load difference between the vertical roll loads on the working side and the driving side.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.