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, Braganca, Saulo Roca
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFRGS
Texto Completo: http://hdl.handle.net/10183/152666
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 Cruz, Ricardo Thomé daPelisser, Gustavo FrassiniBielefeldt, Wagner VianaBraganca, Saulo Roca2017-02-15T02:28:17Z20161516-1439http://hdl.handle.net/10183/152666001013043The 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.application/pdfengMaterials research : ibero-american journal of materials. São Carlos. Vol. 19, no. 2 (2016), p. 408-412AçoAreia de fundiçãoFiller sandFree opening rateRefractorySteelmakingFree opening performance of steel ladle as a function of filler sand propertiesinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/otherinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSORIGINAL001013043.pdfTexto completo (inglês)application/pdf1803065http://www.lume.ufrgs.br/bitstream/10183/152666/1/001013043.pdfc77627644a0c8de135be03cdca3aa421MD51TEXT001013043.pdf.txt001013043.pdf.txtExtracted Texttext/plain21383http://www.lume.ufrgs.br/bitstream/10183/152666/2/001013043.pdf.txt5a1b8a0b283f01a2f6353bf2501b58faMD52THUMBNAIL001013043.pdf.jpg001013043.pdf.jpgGenerated Thumbnailimage/jpeg2028http://www.lume.ufrgs.br/bitstream/10183/152666/3/001013043.pdf.jpg6460f2f8b1e07a3e5d8b42a43b2ecf0eMD5310183/1526662018-11-16 02:43:10.426859oai:www.lume.ufrgs.br:10183/152666Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2018-11-16T04:43:10Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false
dc.title.pt_BR.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
Aço
Areia de fundição
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
Braganca, Saulo Roca
author_role author
author2 Pelisser, Gustavo Frassini
Bielefeldt, Wagner Viana
Braganca, Saulo Roca
author2_role author
author
author
dc.contributor.author.fl_str_mv Cruz, Ricardo Thomé da
Pelisser, Gustavo Frassini
Bielefeldt, Wagner Viana
Braganca, Saulo Roca
dc.subject.por.fl_str_mv Aço
Areia de fundição
topic Aço
Areia de fundição
Filler sand
Free opening rate
Refractory
Steelmaking
dc.subject.eng.fl_str_mv 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.issued.fl_str_mv 2016
dc.date.accessioned.fl_str_mv 2017-02-15T02:28:17Z
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dc.identifier.issn.pt_BR.fl_str_mv 1516-1439
dc.identifier.nrb.pt_BR.fl_str_mv 001013043
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001013043
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dc.language.iso.fl_str_mv eng
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dc.relation.ispartof.pt_BR.fl_str_mv Materials research : ibero-american journal of materials. São Carlos. Vol. 19, no. 2 (2016), p. 408-412
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