Method for continuously casting a steel beam blank
US6883584B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 30, 2002 |
| Grant date | Apr 26, 2005 |
| Priority date | — |
| Expiry date | Jul 30, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22D11/1213
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method for producing a steel beam blank includes continuously casting a steel beam blank strand and cooling the steel beam blank strand in a secondary cooling zone. The steel beam blank strand is guided in a vertical casting plane along a curved path having its web perpendicular to the vertical casting plane, so that each of the lateral flanges has an intrados flange tip and an extrados flange tip. The method further includes straightening the steel beam blank strand behind the secondary cooling zone. When being straightened, the intrados flange tips are selectively reheated between the secondary cooling and the straightening of the steel beam blank strand via an external energy supply focused on the intrados flange tips. In this manner, transverse cracks in the intrados flange tips may be reliably avoided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.