Specialized metallurgical processes – compositions for use therei – Processes – Electrothermic processes
Patent
1977-08-30
1979-02-27
Rosenberg, P. D.
Specialized metallurgical processes, compositions for use therei
Processes
Electrothermic processes
75 59, C21C 534
Patent
active
041417232
ABSTRACT:
Stainless steel is produced in a converter with a tuyere defining a central conduit and a peripheral conduit concentrically surrounding the central conduit, by blowing an oxidizing refining gas through the central conduit into a molten metal bath, the refining gas initially consisting of pure oxygen and being subsequently diluted by gaseous argon, and injecting liquid argon into the converter through the peripheral conduit, to refine the molten metal bath until it has attained a desired level of carbon.
REFERENCES:
patent: 3003865 (1961-10-01), Bridges
patent: 3046107 (1962-07-01), Nelson
patent: 3751242 (1973-08-01), Knuppel
patent: 3854932 (1974-12-01), Bishop
patent: 4001012 (1977-01-01), Rote
Denier Guy
Giroud Georges
Grosjean Jean-Claude
Vayssiere Pierre
Institut de Recherches de la Siderurgie Francaise (IRSID)
Kelman Kurt
Rosenberg P. D.
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