Refining ultra low carbon and nitrogen stainless steel in VCR
A VCR (vacuum converter refiner) makes it possible to replace the dilution process of AOD with a vacuum process at the final stage of decarburization and a following slag reduction period. Ultra-low C and N stainless steel can be produced comparatively easily in a 70 t VCR process with several opera...
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| Veröffentlicht in: | Denki-seiko 1996, Vol.67 (1), p.62-67 |
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| Hauptverfasser: | , , , , |
| Format: | Artikel |
| Sprache: | jpn |
| Online-Zugang: | Volltext |
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| Zusammenfassung: | A VCR (vacuum converter refiner) makes it possible to replace the dilution process of AOD with a vacuum process at the final stage of decarburization and a following slag reduction period. Ultra-low C and N stainless steel can be produced comparatively easily in a 70 t VCR process with several operational improvements such as estimation of decarburization behavior under vacuum and prevention of N pickup during tapping and casting. Some operational results and discussion of decarburization and denitrification of a 70 t VCR in Daido Steel's Chita Plant are described. |
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| ISSN: | 0011-8389 |
| DOI: | 10.4262/denkiseiko.67.62 |