Method and plant for the energy-efficient production of hot steel strip
US9296027B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 11, 2011 |
| Grant date | Mar 29, 2016 |
| Priority date | — |
| Expiry date | Oct 11, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB21B45/004
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method is disclosed for continuously or semi-continuously producing hot steel strip which, starting from a slab guided through a slab-guiding device, is rolled in a roughing train having at least four-stands, the method comprising: casting a slab in a die, the slab being reduced to a thickness of between 60 and 95 mm in a liquid core reduction process by the adjoining slab-guiding device, a slab support length measured between the meniscus, i.e., the bath level, of the die and an end of the slab-guiding device facing the roughing train being between 12 m and 15.5 m, and a casting speed ranging from 3.8 to 7 m/min. The disclosed combination of casting parameters may ensure that the crater tip of the slab extends to the vicinity of the end of the slab-guiding device independently of the respective maximum casting speeds which are dependent on the particular grade of material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.