Method for treatment of molten steel in a ladle
Process for making a steel melt for continuous casting
Cleansing of steel by gas rinsing
Production of ultra-low phosphorus steel Patent #: 4456477
ApplicationNo. 229440 filed on 08/08/1988
US Classes:75/546, Noble gas or inert gas not otherwise identified75/547Gas compound containing Oxygen (e.g., Carbon monoxide, Carbon dioxide, Water, etc.)
ExaminersPrimary: Rosenberg, Peter D.
Attorney, Agent or Firm
Foreign Patent References
International ClassesC21C 005/32
Foreign Application Priority Data1987-08-12 FR
AbstractA killed steel is stirred in a ladle with the aid of gaseous carbon dioxide. Before the beginning of the stirring in the ladle, there is added to the quantity of deoxidizer usually employed, a supplementary quantity of deoxidizer in the molten metal, the rate of supply of carbon dioxide, bearing in mind the capacity of the ladle and the duration of the stirring, remaining less than or equal to the maximum rate of supply corresponding to the oxidation of the supplementary quantity of deoxidizer at the end of the stirring.