Method for producing alloyed steels
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United States of America Patent
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Jun 20, 2000
Grant Date -
N/A
app pub date -
Jan 11, 1996
filing date -
Jan 16, 1995
priority date (Note) -
Expired
status (Latency Note)
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Abstract
In a method for producing alloyed steels, wherein in a first manufacturing step iron carriers are to a great extent decarburized and dephosphorized by means of oxygen and after removal of the slag resulting therefrom the melt is adjusted to the desired alloy and carbon content in a further manufacturing step after addition of alloy carriers by means of oxygen and inert gas. Especially in order to produce stainless steels in an economical manner while achieving a high level of productivity, in particular while charging major amounts of solids, the first manufacturing step is carried out under supply of electric energy in an electric furnace and the further manufacturing step is also effected under supply of electric energy, in an electric furnace that is to a great extent free from phosphorus-containing slag.
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