Casting steel strip with low surface roughness and low porosity
US7299856B2 · kind B2 · utility
3Cited by
18References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 1, 2004 |
| Grant date | Nov 27, 2007 |
| Priority date | — |
| Expiry date | Dec 1, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/12
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A thin steel strip with low surface roughness and low porosity produced by casting with molten steel having a total oxygen content of at least about 100 ppm and a temperature that allows a majority of any oxide inclusions to be in a liquidus state. The steel strip produced by the method may have a per unit area density of at least about 120 oxide inclusions per square millimeter to a depth of about 2 microns from the strip surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.