Steel sheet shape control method and steel sheet shape control apparatus
US9551056B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 2, 2013 |
| Grant date | Jan 24, 2017 |
| Priority date | — |
| Expiry date | Nov 21, 2033 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H2701/173
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A steel sheet shape control method includes, (A) setting a target correction shape of the steel sheet at a position of an electromagnet to a curved shape, (B) measuring a steel sheet shape when electromagnetic correction is performed, (C) calculating the steel sheet shape in a nozzle position based on the steel sheet shape, (D) repeating (B) and (C) by resetting the target correction shape to a curved shape having a smaller amount of warp, (E) when the amount of warp of the steel sheet shape at the position of the nozzle is less than the upper limit value, (F) calculating vibration of the steel sheet at the position of the nozzle, and (G) adjusting a control gain of the electromagnet until amplitude of vibration is less than a second upper limit value when the amplitude of the vibration is equal to or more than the second upper limit value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.