Process damping of self-excited third octave mill vibration
US10166584B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 15, 2015 |
| Grant date | Jan 1, 2019 |
| Priority date | — |
| Expiry date | Feb 6, 2036 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB21B2203/44
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
Control of self-excited third octave vibration in a metal rolling mill can be achieved by adjusting the tension of the metal strip as it enters a stand. Self-excited third octave vibration can be detected and/or measured by one or more sensors. A high-speed tension adjustor can rapidly adjust the entry tension of the metal strip (e.g., as the metal strip enters a mill stand) to compensate for the detected self-excited third octave vibration. High-speed tension adjustors can include any combination of hydraulic or piezoelectric actuators coupled to the center roll of a bridle roll to rapidly raise or lower the roll and thus induce rapid tension adjustments in the strip. Other high-speed tension adjustors can be used.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.