Slab manufacturing method and control device
US11858019B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 21, 2019 |
| Grant date | Jan 2, 2024 |
| Priority date | — |
| Expiry date | Sep 23, 2040 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB21B2001/028
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A slab manufacturing method in which casting drum housing screw-down system deformation characteristics which have been acquired prior to the start of slab casting and which indicate deformation characteristics of a housing configured to support a casting drum and deformation characteristics of a screw-down system configured to screw down the casting drum is used to calculate an estimated plate thickness at both end portions of a slab in a width direction thereof from Expression 1 ((estimated plate thickness on entry side of rolling mill)=(screw-down position of casting cylinder)+(elastic deformation of casting drum)+(casting drum housing screw-down system deformation)+(drum profile of casting drum)−(elastic deformation of casting drum at time of screw-down position zero-point adjustment)), an entry-side wedge ratio and an exit-side wedge ratio are calculated on the basis of the estimated plate thickness calculated from Expression 1.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.