Influência da posição diametral das tábuas e da vaporização nos defeitos de secagem de Eucalyptus grandis

Detalhes bibliográficos
Autor(a) principal: Calonego, Fred Willians [UNESP]
Data de Publicação: 2007
Outros Autores: Severo, Elias Taylor Durgante [UNESP]
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.
id UNSP_30dfd191ee1f40a221550de504abf944
oai_identifier_str oai:repositorio.unesp.br:11449/69507
network_acronym_str UNSP
network_name_str Repositório Institucional da UNESP
repository_id_str 2946
spelling 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