ISSN 2594-5300
52º Seminário de Aciaria, Fundição e Metalurgia de Não-Ferrosos — vol. 52, num.52 (2023)
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Resumo
In the continuous casting machine, tundish is a reservoir and a distributor for liquid
steel from the ladle into the molds. It is important to investigate the influence of
covering powder composition on the tundish stopper rod corrosion, i.e., at the slag line.
Therefore, the objective of this work is to investigate the thermodynamic properties of
a Ca-aluminate covering powder, through simulations using computational
thermodynamics as a tool. Using computational thermodynamics, conclusions are
obtained on the behavior of the covering powder during the industrial process since
there are information on nature, amount, and composition of the phases at
steelmaking temperatures. It was concluded that an easy-to-implement solution, in
the industrial context, could be implemented to reduce corrosion of the stopper rod
caused by covering powder.
In the continuous casting machine, tundish is a reservoir and a distributor for liquid
steel from the ladle into the molds. It is important to investigate the influence of
covering powder composition on the tundish stopper rod corrosion, i.e., at the slag line.
Therefore, the objective of this work is to investigate the thermodynamic properties of
a Ca-aluminate covering powder, through simulations using computational
thermodynamics as a tool. Using computational thermodynamics, conclusions are
obtained on the behavior of the covering powder during the industrial process since
there are information on nature, amount, and composition of the phases at
steelmaking temperatures. It was concluded that an easy-to-implement solution, in
the industrial context, could be implemented to reduce corrosion of the stopper rod
caused by covering powder.
Palavras-chave
tundish stopper rod; refractory wear; covering powder; continuous casting
tundish stopper rod; refractory wear; covering powder; continuous casting
Como citar
Silva, Thaisa Franco;
Apolinario, Giovani Delfim;
Ferreira, José Augusto Cardoso;
Maranhão, Edson Alves;
Klug, Jeferson Leandro;
Bielefeldt, Wagner Viana;
Bragança, Saulo Roca.
REDUCTION OF CORROSION OF TUNDISH STOPPER ROD CAUSED BY COVERING POWDER
,
p. 1185-1192.
In: 52º Seminário de Aciaria, Fundição e Metalurgia de Não-Ferrosos,
São Paulo,
2023.
ISSN: 2594-5300
, DOI 10.5151/2594-5300-40384
