Effect of argon blow through a monoblock stopper in continuous casting of steel on the service of the stopper and nonmetallic inclusions in the cast steel

Kinetic equations of the dependence of the wear of corundum-graphite monoblock stoppers in the slag line and the head on the temperature of the steel in the intermediate ladle in continuous casting are derived as a result of a full-scale experiment. The equations make it possible to calculate the ca...

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Bibliographic Details
Published in:Refractories and industrial ceramics 1999-05, Vol.40 (5-6), p.275-278
Main Authors: VIL'K, Yu. N, KORTEL', A. A, AKSEL'ROD, L. M
Format: Article
Language:English
Subjects:
Argon
Continuous casting
Corundum
Globules
Graphite
Inserts
Iron and steel making
Kinetic equations
Ladle metallurgy
Mathematical analysis
Nonmetallic inclusions
Segregations
Steels
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Summary:Kinetic equations of the dependence of the wear of corundum-graphite monoblock stoppers in the slag line and the head on the temperature of the steel in the intermediate ladle in continuous casting are derived as a result of a full-scale experiment. The equations make it possible to calculate the casting time at any possible temperature of casting with the use of corundum-graphite monoblock stoppers of a standard composition (TU 14-8-371-81). In addition to increasing substantially the number of casting cycles in a batch, argon blow through monoblock stoppers with porous inserts improves the quality parameters of cast steel ShKh-15 with respect to segregation bands, globules, central porosity, carbide segregation, content of sulfides and oxides, and subshrinkage segregation.
ISSN:1083-4877
1573-9139
DOI:10.1007/BF02762301