Continuous casting mold and method for continuous casting of steel (as amended)
US11331716B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 23, 2015 |
| Grant date | May 17, 2022 |
| Priority date | — |
| Expiry date | May 8, 2036 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22D11/059
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Continuous casting mold is provided having a mold copper plate having plural separate portions filled with foreign metal formed by filling concave grooves formed on the inner wall surface of the mold copper plate and having a diameter of 2 mm to 20 mm in the inner wall surface at least in the region from a meniscus to a position located 20 mm or more lower than the meniscus with the foreign metal whose thermal conductivity is 80% or less or 125% or more of the mold copper plate, the ratio of the Vickers hardness HVc of the mold copper plate to the Vickers hardness HVm of the filling metal satisfies expression (1), and the ratio of the thermal expansion coefficient αc of the mold copper plate and the thermal expansion coefficient αm of the filling metal satisfies expression (2). 0.3≤HVc/HVm≤2.3 (1),0.7≤αc/αm≤3.5 (2)
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.