Method of dynamically controlling the withdrawal speed during a healing cycle following sticking in a process for the continuous casting of steel
US5449034A · kind A · utility
0Cited by
2References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 8, 1993 |
| Grant date | Sep 12, 1995 |
| Priority date | — |
| Expiry date | Oct 8, 2013 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22D11/20
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
On detection of an occurrence of skin sticking in the mould, the withdrawal speed is subjected to a cyclic variation which comprises a ramp from the cruising speed to a reduced, decelerated speed, a healing plateau, and an acceleration ramp from the reduced speed to the cruising speed, measures are taken to determine the ferritic potential (PF) of the steel which is being cast, to determine the gradients (d, a) of one of the two ramps as a function of this ferritic potential, and to determine the length (t.sub.r) of the healing plateau as a function of the difference between the liquidus and solidus temperatures of said steel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.