Influência da posição diametral das tábuas e da vaporização nos defeitos de secagem de Eucalyptus grandis
Autor(a) principal: | |
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Data de Publicação: | 2007 |
Outros Autores: | |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://www.redalyc.org/articulo.oa?id=74413102 http://www.dcf.ufla.br/cerne/publicacao.php?volume=13&numero=1 http://hdl.handle.net/11449/69507 |
Resumo: | This study evaluated the Eucalyptus grandis drying defects acting on boards diametrical position and on log steaming. Half of the logs, with diameter from 20 to <25, 25 to <30 and 30 to <35cm, were steamed during 20 hours at 90°C of temperature. Subsequently, the logs (control and steamed) were sawn. The boards were dried in the dry-kiln pilot and the resulting defects from the drying process were measured. The results indicate that: (1) the boards coming from control logs presented different magnitude defects in function of the diametrical position. The split and spring to increase in direction to pith, the bow to increase in direction to bark and cupping were bigger in intermediary boards; (2) the boards coming from steamed logs presented a reduction from drying defects in function of logs diameter and its more homogeneous index in the pith-bark direction. |
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Repositório Institucional da UNESP |
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Influência da posição diametral das tábuas e da vaporização nos defeitos de secagem de Eucalyptus grandisInfluence of boards diametrical position and steaming on the drying defects of Eucalyptus grandisDiametrical positionDrying defectsEucalyptus grandisLogs steamingdiameterevergreen treeprocessingtimber industryEucalyptusThis study evaluated the Eucalyptus grandis drying defects acting on boards diametrical position and on log steaming. Half of the logs, with diameter from 20 to <25, 25 to <30 and 30 to <35cm, were steamed during 20 hours at 90°C of temperature. Subsequently, the logs (control and steamed) were sawn. The boards were dried in the dry-kiln pilot and the resulting defects from the drying process were measured. The results indicate that: (1) the boards coming from control logs presented different magnitude defects in function of the diametrical position. The split and spring to increase in direction to pith, the bow to increase in direction to bark and cupping were bigger in intermediary boards; (2) the boards coming from steamed logs presented a reduction from drying defects in function of logs diameter and its more homogeneous index in the pith-bark direction.Departamento de Recursos Naturais e Ciências Florestais UNESP Fazenda Experimental Lageado, 18603-970 Botucatu, SPDepartamento de Recursos Naturais e Ciências Florestais UNESP Fazenda Experimental Lageado, 18603-970 Botucatu, SPUniversidade Estadual Paulista (Unesp)Calonego, Fred Willians [UNESP]Severo, Elias Taylor Durgante [UNESP]2014-05-27T11:22:23Z2014-05-27T11:22:23Z2007-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article10-18application/pdfhttp://www.redalyc.org/articulo.oa?id=74413102http://www.dcf.ufla.br/cerne/publicacao.php?volume=13&numero=1Cerne, v. 13, n. 1, p. 10-18, 2007.0104-7760http://hdl.handle.net/11449/69507WOS:0002544323000022-s2.0-340471028442-s2.0-34047102844.pdf2712899450900716Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPporCERNE0.5000,368info:eu-repo/semantics/openAccess2024-04-30T13:11:27Zoai:repositorio.unesp.br:11449/69507Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T22:49:59.618575Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Influência da posição diametral das tábuas e da vaporização nos defeitos de secagem de Eucalyptus grandis Influence of boards diametrical position and steaming on the drying defects of Eucalyptus grandis |
title |
Influência da posição diametral das tábuas e da vaporização nos defeitos de secagem de Eucalyptus grandis |
spellingShingle |
Influência da posição diametral das tábuas e da vaporização nos defeitos de secagem de Eucalyptus grandis Calonego, Fred Willians [UNESP] Diametrical position Drying defects Eucalyptus grandis Logs steaming diameter evergreen tree processing timber industry Eucalyptus |
title_short |
Influência da posição diametral das tábuas e da vaporização nos defeitos de secagem de Eucalyptus grandis |
title_full |
Influência da posição diametral das tábuas e da vaporização nos defeitos de secagem de Eucalyptus grandis |
title_fullStr |
Influência da posição diametral das tábuas e da vaporização nos defeitos de secagem de Eucalyptus grandis |
title_full_unstemmed |
Influência da posição diametral das tábuas e da vaporização nos defeitos de secagem de Eucalyptus grandis |
title_sort |
Influência da posição diametral das tábuas e da vaporização nos defeitos de secagem de Eucalyptus grandis |
author |
Calonego, Fred Willians [UNESP] |
author_facet |
Calonego, Fred Willians [UNESP] Severo, Elias Taylor Durgante [UNESP] |
author_role |
author |
author2 |
Severo, Elias Taylor Durgante [UNESP] |
author2_role |
author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Calonego, Fred Willians [UNESP] Severo, Elias Taylor Durgante [UNESP] |
dc.subject.por.fl_str_mv |
Diametrical position Drying defects Eucalyptus grandis Logs steaming diameter evergreen tree processing timber industry Eucalyptus |
topic |
Diametrical position Drying defects Eucalyptus grandis Logs steaming diameter evergreen tree processing timber industry Eucalyptus |
description |
This study evaluated the Eucalyptus grandis drying defects acting on boards diametrical position and on log steaming. Half of the logs, with diameter from 20 to <25, 25 to <30 and 30 to <35cm, were steamed during 20 hours at 90°C of temperature. Subsequently, the logs (control and steamed) were sawn. The boards were dried in the dry-kiln pilot and the resulting defects from the drying process were measured. The results indicate that: (1) the boards coming from control logs presented different magnitude defects in function of the diametrical position. The split and spring to increase in direction to pith, the bow to increase in direction to bark and cupping were bigger in intermediary boards; (2) the boards coming from steamed logs presented a reduction from drying defects in function of logs diameter and its more homogeneous index in the pith-bark direction. |
publishDate |
2007 |
dc.date.none.fl_str_mv |
2007-01-01 2014-05-27T11:22:23Z 2014-05-27T11:22:23Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://www.redalyc.org/articulo.oa?id=74413102 http://www.dcf.ufla.br/cerne/publicacao.php?volume=13&numero=1 Cerne, v. 13, n. 1, p. 10-18, 2007. 0104-7760 http://hdl.handle.net/11449/69507 WOS:000254432300002 2-s2.0-34047102844 2-s2.0-34047102844.pdf 2712899450900716 |
url |
http://www.redalyc.org/articulo.oa?id=74413102 http://www.dcf.ufla.br/cerne/publicacao.php?volume=13&numero=1 http://hdl.handle.net/11449/69507 |
identifier_str_mv |
Cerne, v. 13, n. 1, p. 10-18, 2007. 0104-7760 WOS:000254432300002 2-s2.0-34047102844 2-s2.0-34047102844.pdf 2712899450900716 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
CERNE 0.500 0,368 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
10-18 application/pdf |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808129467031224320 |