Method for rolling steel sheet and method for manufacturing steel sheet
US12090533B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 26, 2019 |
| Grant date | Sep 17, 2024 |
| Priority date | — |
| Expiry date | Aug 13, 2041 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB21B2263/08
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
Provided is a method for rolling a steel sheet and a method for manufacturing a steel sheet capable of preventing occurrence of defects in appearance of a steel sheet caused by oil spots of a coolant and preventing occurrence of defects in shape of a steel sheet by appropriately controlling thermal deformation of work rolls. The method for rolling a steel sheet according to the present invention is a method for rolling a steel sheet involving feeding of a coolant to rolls that form a rolling mill during the rolling. The method includes keeping a coolant feeding rate at or lower than a predetermined rate lower than an upper constant rate at a start of operation of the rolling mill, and increasing the coolant feeding rate to the upper constant rate in response to an amount of center buckles of the steel sheet reaching or exceeding an upper target value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.