Comparative study of inclusion removal from liquid steel in the RH and argon purging processes.

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.creatorCampos, Marina Braga-
Autor(es): dc.creatorPeixoto, Johne Jesus Mol-
Autor(es): dc.creatorSilva, Carlos Antônio da-
Autor(es): dc.creatorSilva, Itavahn Alves da-
Data de aceite: dc.date.accessioned2025-08-21T15:51:54Z-
Data de disponibilização: dc.date.available2025-08-21T15:51:54Z-
Data de envio: dc.date.issued2021-12-12-
Data de envio: dc.date.issued2021-12-12-
Data de envio: dc.date.issued2019-
Fonte completa do material: dc.identifierhttp://www.repositorio.ufop.br/jspui/handle/123456789/14192-
Fonte completa do material: dc.identifierhttps://doi.org/10.1590/0370-44672019730133-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/capes/1026097-
Descrição: dc.descriptionIn order to improve steel quality, it is necessary to increase the cleanliness of the liquid steel; that is, to reduce the number and size of the inclusions in the liquid steel, as well as to control their chemical composition. For this purpose, processes (with different operating costs) are used, such as the bubbling of inert gas in the steel ladle and its treatment in the vacuum degasser RH. This article deals with inclusion removal through an argon purging process and RH treatment, and provides a comparison of their effectiveness using industrial data and a mathematical model. The inclusion count shows a strong exponential decay for RH treated heats with chemical heating, as expected. The same behavior is not seen for RH treated heats without chemical heating as well as an argon purging process. It is suggested that in the later cases, there could exist competition between inclusion removal and inclusion generation from sources, such as refractory-slag-metal interaction and open eye atmosphere metal interaction. It has been concluded that the RH and the argon purging processes are both able to reduce the amount of inclusions. However, the bubbling process would require a much smaller gas flow rate to avoid open eye formation.-
Formato: dc.formatapplication/pdf-
Idioma: dc.languageen-
Direitos: dc.rightsaberto-
Direitos: dc.rightsThis is an open-access article distributed under the terms of the Creative Commons Attribution License. Fonte: o PDF do artigo.-
Palavras-chave: dc.subjectInclusions-
Palavras-chave: dc.subjectBubbling station-
Título: dc.titleComparative study of inclusion removal from liquid steel in the RH and argon purging processes.-
Aparece nas coleções:Repositório Institucional - UFOP

Não existem arquivos associados a este item.