Thin cast strip with controlled manganese and low oxygen levels and method for making same
US7690417B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 1, 2006 |
| Grant date | Apr 6, 2010 |
| Priority date | — |
| Expiry date | Jul 6, 2028 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22C38/18
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method for making a thin cast strip with reduced meniscus marks includes assembling a pair of casting rolls laterally positioned to form a nip therebetween, preparing molten steel having a carbon content in the range of 0.01 to 0.3% by weight, a manganese content between 0.1 and 0.8% by weight, a silicon content between 0.05 and 0.5% by weight, a calcium content between 0.0008 and 0.004% by weight, an aluminum content between 2 and 500 ppm by weight, having a free oxygen content below about 50 ppm at 1600° C., forming a casting pool of the molten steel supported on casting surfaces of the casting rolls above the nip, and counter-rotating the casting rolls cause thin strip to be casted downwardly from the nip.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.