Method of ladle steelmaking and product produced thereby
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United States of America Patent
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Jul 15, 1986
Grant Date -
N/A
app pub date -
Oct 22, 1984
filing date -
Oct 22, 1984
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method of refining steel in the ladle using a low melting point slag is disclosed. Both ELS and resulfurized steels are subjected to the simultaneous effect of a vacuum and a purging agent, preferably an inert gas, to lower the H.sub.2 content into the flake-free range irrespective of the chemistry of the steel, and heat is added via AC arcs from non-consumable electrodes at a temperature only slightly higher than the solidication temperature of the steel, preferably about 2840.degree. F. Steel produced thereby is also disclosed.
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