Rolling mill strip thickness controller
US4691547A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 11, 1985 |
| Grant date | Sep 8, 1987 |
| Priority date | — |
| Expiry date | Apr 11, 2005 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB21B37/66
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A method for automatically controlling the thickness of product emerging from a rolling mill. Signals indicative of total roll force (F), rollgap position (S), angular position of one mill roll (v) and downstream product thickness (h) are utilized to obtain an output signal indicative of roll eccentricity affecting the true instantaneous rollgap position as a function of the measured mill roll angular position. The output signal may be use to compensate an estimate of instantaneous thickness of the product for the purpose of controlling the gap between work rolls. If preferred the output signal may be further processed to obtain an output signal indicative of the periodic roll eccentricity of a set of rolls having a common period of rotation or of a plurality of such sets.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.