Method for measuring the flatness of a metal product and associated device
US11235365B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 7, 2016 |
| Grant date | Feb 1, 2022 |
| Priority date | — |
| Expiry date | Jan 31, 2038 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB21B2263/04
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method and a device that performs the method for measuring the flatness of a metal product traveling on a path, the method includes measuring a first longitudinal tension measurement value (T1) with a measuring roller, determining a model of stress over the thickness of the metal product as a function of plastic or elastoplastic deformation of the product, calculating a correction factor for the longitudinal deformation according to the stress model, calculating a corrective value (T1′, T2′) for the first longitudinal tension measurement value (T1) at at least one evaluation point (M1, M2) as a function of the longitudinal deformation correction factor (Z1), and calculating a corrected flatness measurement value (PC) at at least one of the evaluation points.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.