ISSN 2594-5300
38º Seminário de Aciaria - Internacional — vol. 38, num.38 (2007)
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Abstract
Arcelor Mittal Fos sur mer steelmaking plant has developed, in the frame of a fruitful and tight cooperation between Arcelor Mittal flat carbon European steel plants and ARCELOR Research, a zero clogging process leading to a significant improvement of the tundish sequence length. Such “zero clogging” process with no CC nozzle change pushes the limits for Al killed steel and IF steel above 1600 t of liquid steel per nozzle and 2680 t of liquid steel per tundish. In this paper the key factors for the zero clogging process are first presented. They are mainly located in the secondary metallurgy area (ladle slag composition, re-oxidation, Ti recovery etc...). The results and the process performance are completely described. With such zero clogging process Arcelor Mittal Fos sur mer steel plant reaches a world class low cost and a high productivity level for Ti-SULC grades and Al killed grades. The way toward 2000t of Ti-SULC grades cast per tundish nozzle is achievable.
Arcelor Mittal Fos sur mer steelmaking plant has developed, in the frame of a fruitful and tight cooperation between Arcelor Mittal flat carbon European steel plants and ARCELOR Research, a zero clogging process leading to a significant improvement of the tundish sequence length. Such “zero clogging” process with no CC nozzle change pushes the limits for Al killed steel and IF steel above 1600 t of liquid steel per nozzle and 2680 t of liquid steel per tundish. In this paper the key factors for the zero clogging process are first presented. They are mainly located in the secondary metallurgy area (ladle slag composition, re-oxidation, Ti recovery etc...). The results and the process performance are completely described. With such zero clogging process Arcelor Mittal Fos sur mer steel plant reaches a world class low cost and a high productivity level for Ti-SULC grades and Al killed grades. The way toward 2000t of Ti-SULC grades cast per tundish nozzle is achievable.
Keywords
Clogging; Inclusions; Ladle slag; Ti losses.
Clogging; Inclusions; Ladle slag; Ti losses.
How to refer
Eric, Perrin;
Philippe, Blumenfeld;
Carole, Bonniot;
Pierre, Mabelly;
Sebastien, Ohier.
TUNDISH SEQUENCE LENGTH INCREASE FOR AL KILLED AND TI-SULC GRADES AT ARCELOR MITTAL FOS SUR MER STEELMAKING PLANT
,
p. 473-481.
In: 38º Seminário de Aciaria - Internacional,
Belo Horizonte,
2007.
ISSN: 2594-5300
, DOI 10.5151/2594-5300-0048
