Process for deoxidizing steel by means of molten aluminum
AssigneeKlockner-Werke AG
InventorHans Kosmider
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Abstract
Molten steel is killed by passing molten aluminum under pressure below the surface of the steel melt through a lance heated to the melting point of the aluminum.
Claims15
The improvement in the process for deoxidizing steel melts by means of molten aluminum, the said improvement comprising blowing the molten aluminum under pressure into the steel melt through a lance which has been preheated to at least about the melting point of the aluminum.
The improvement in the process for deoxidizing steel melts by means of molten aluminum, the said improvement comprising blowing the molten aluminum under pressure into the steel melt through a lance extending below the surface of the melt, the lance being preheated to at least about the melting point of the aluminum.
An apparatus for deoxidizing steel in the melt by means of molten aluminum, the apparatus comprising
- a pressure vessel;
- an inlet for the molten aluminum;
- a second inlet for an inert pressure gas;
- a mold for receiving the molten steel from the converter or Siemens-Martin furnace;
- a lance leading from the pressure vessel into the steel mold, and
- means for heating the lance along a predetermined part of its length outside said pressure vessel.
Dependencies are inferred from the claim text.