Heat transfer-based width adjustment method for continuous casting mold
US11141782B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 21, 2017 |
| Grant date | Oct 12, 2021 |
| Priority date | — |
| Expiry date | Sep 21, 2037 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22D11/168
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The present invention provides a heat transfer-based width adjustment method for a continuous casting mold. A boundary condition of a horizontal acceleration velocity α used in heat transfer-based width adjustment of a continuous casting mold is set to a minimum value subject to constraints of a maximum air gap and shell strength. The present invention can constrain a maximum air gap between a copper plate of a narrow mold wall and a casting billet in a heat transfer-based width adjustment process for a continuous casting mold, thereby ensuring sufficient contact between the copper plate of the narrow mold wall and the casting billet, so as to prevent cracks and other defects of the casting billet due to excessive thermal resistance of the air gap, insufficient corner cooling of the casting billet, delayed solidification and concentrated thermal deformation stress. Moreover, a strain of the shell is controlled to be less than a critical strain, thereby preventing collapse of the casting billet, and preventing the casting billet from being scrapped as a result of an uneven narrow wall. Furthermore, since parameter settings of a width adjustment model dynamically change with a castin…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.