Method for making steel in a liquid melt-fed electric furnace
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United States of America Patent
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Nov 5, 2002
Grant Date -
N/A
app pub date -
Oct 2, 2001
filing date -
Jul 3, 1996
priority date (Note) -
Expired
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Abstract
A method for making steel in an electric furnace, wherein a predetermined amount of liquid melt is fed into the electric furnace. The method comprises the steps of (a) continuously feeding a controlled flow of liquid melt into the furnace without interrupting the heating from the electric arc, (b) continuously injecting a refining gas into the furnace before the C and/or Si content of the metal bath reaches a predetermined value, until the end of the feeding process, and (c) pursuing the injection of refining gas after the predetermined amount of melt has been fed into the furnace, until the target value for the C and/or Si content of the metal bath has been reached.
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