Method of producing steel material
US10072320B2 · kind B2 · utility
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Key dates
| Filing date | Jun 4, 2014 |
| Grant date | Sep 11, 2018 |
| Priority date | — |
| Expiry date | Aug 18, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2021/695
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method of producing a steel material includes a step of adding Ca to molten steel with an amount of Ca adjusted within a range satisfying the formula (1) below: where Ca is the amount [kg] of Ca added, y is an yield [%] of Ca, [S] is a concentration [% by mass] of S in the steel before addition of Ca, [Al2O3] is an amount [% by mass] of Al2O3 in the steel before addition of Ca, and W is a weight [kg] of the molten steel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.