Free Opening Performance of Steel Ladle as a Function of Filler Sand Properties

Detalhes bibliográficos
Autor(a) principal: Cruz,Ricardo Thomé da
Data de Publicação: 2016
Outros Autores: Pelisser,Gustavo Frassini, Bielefeldt,Wagner Viana, Bragança,Saulo Roca
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Materials research (São Carlos. Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392016000200408
Resumo: The secondary steel refining process uses filler sand as a thermal insulating barrier that separates the liquid metal from direct contact with slide-gate system of the steel ladle. The effective use of this practice must provide a high free opening rate, impacting on increased productivity and quality of steel, reducing the number of stops, thermal loss and even the steel re-oxidation. Both operational parameters and material properties have influence on the free opening rate. In the present work, two chromite-silica sands were analyzed, and some composition changes were proposed. The properties of these materials and the relevant process parameters were evaluated according to the free opening rate under normal operational conditions. The increases in carbon content and in particle size were considered the main factors relating to the filler sand. The percentage of free opening is also strongly influenced by time and temperature of the steel contact.
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spelling Free Opening Performance of Steel Ladle as a Function of Filler Sand PropertiesFiller sandFree opening rateRefractorySteelmakingThe secondary steel refining process uses filler sand as a thermal insulating barrier that separates the liquid metal from direct contact with slide-gate system of the steel ladle. The effective use of this practice must provide a high free opening rate, impacting on increased productivity and quality of steel, reducing the number of stops, thermal loss and even the steel re-oxidation. Both operational parameters and material properties have influence on the free opening rate. In the present work, two chromite-silica sands were analyzed, and some composition changes were proposed. The properties of these materials and the relevant process parameters were evaluated according to the free opening rate under normal operational conditions. The increases in carbon content and in particle size were considered the main factors relating to the filler sand. The percentage of free opening is also strongly influenced by time and temperature of the steel contact.ABM, ABC, ABPol2016-04-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392016000200408Materials Research v.19 n.2 2016reponame:Materials research (São Carlos. Online)instname:Universidade Federal de São Carlos (UFSCAR)instacron:ABM ABC ABPOL10.1590/1980-5373-MR-2015-0359info:eu-repo/semantics/openAccessCruz,Ricardo Thomé daPelisser,Gustavo FrassiniBielefeldt,Wagner VianaBragança,Saulo Rocaeng2016-04-01T00:00:00Zoai:scielo:S1516-14392016000200408Revistahttp://www.scielo.br/mrPUBhttps://old.scielo.br/oai/scielo-oai.phpdedz@power.ufscar.br1980-53731516-1439opendoar:2016-04-01T00:00Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR)false
dc.title.none.fl_str_mv Free Opening Performance of Steel Ladle as a Function of Filler Sand Properties
title Free Opening Performance of Steel Ladle as a Function of Filler Sand Properties
spellingShingle Free Opening Performance of Steel Ladle as a Function of Filler Sand Properties
Cruz,Ricardo Thomé da
Filler sand
Free opening rate
Refractory
Steelmaking
title_short Free Opening Performance of Steel Ladle as a Function of Filler Sand Properties
title_full Free Opening Performance of Steel Ladle as a Function of Filler Sand Properties
title_fullStr Free Opening Performance of Steel Ladle as a Function of Filler Sand Properties
title_full_unstemmed Free Opening Performance of Steel Ladle as a Function of Filler Sand Properties
title_sort Free Opening Performance of Steel Ladle as a Function of Filler Sand Properties
author Cruz,Ricardo Thomé da
author_facet Cruz,Ricardo Thomé da
Pelisser,Gustavo Frassini
Bielefeldt,Wagner Viana
Bragança,Saulo Roca
author_role author
author2 Pelisser,Gustavo Frassini
Bielefeldt,Wagner Viana
Bragança,Saulo Roca
author2_role author
author
author
dc.contributor.author.fl_str_mv Cruz,Ricardo Thomé da
Pelisser,Gustavo Frassini
Bielefeldt,Wagner Viana
Bragança,Saulo Roca
dc.subject.por.fl_str_mv Filler sand
Free opening rate
Refractory
Steelmaking
topic Filler sand
Free opening rate
Refractory
Steelmaking
description The secondary steel refining process uses filler sand as a thermal insulating barrier that separates the liquid metal from direct contact with slide-gate system of the steel ladle. The effective use of this practice must provide a high free opening rate, impacting on increased productivity and quality of steel, reducing the number of stops, thermal loss and even the steel re-oxidation. Both operational parameters and material properties have influence on the free opening rate. In the present work, two chromite-silica sands were analyzed, and some composition changes were proposed. The properties of these materials and the relevant process parameters were evaluated according to the free opening rate under normal operational conditions. The increases in carbon content and in particle size were considered the main factors relating to the filler sand. The percentage of free opening is also strongly influenced by time and temperature of the steel contact.
publishDate 2016
dc.date.none.fl_str_mv 2016-04-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392016000200408
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392016000200408
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/1980-5373-MR-2015-0359
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv ABM, ABC, ABPol
publisher.none.fl_str_mv ABM, ABC, ABPol
dc.source.none.fl_str_mv Materials Research v.19 n.2 2016
reponame:Materials research (São Carlos. Online)
instname:Universidade Federal de São Carlos (UFSCAR)
instacron:ABM ABC ABPOL
instname_str Universidade Federal de São Carlos (UFSCAR)
instacron_str ABM ABC ABPOL
institution ABM ABC ABPOL
reponame_str Materials research (São Carlos. Online)
collection Materials research (São Carlos. Online)
repository.name.fl_str_mv Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR)
repository.mail.fl_str_mv dedz@power.ufscar.br
_version_ 1754212667904491520

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