Heat Treated Wood
Mostrando 1-8 de 8 artigos, teses e dissertações.
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1. INFLUENCE OF TIME AND HEAT TREATMENT TEMPERATURE ON PERMEABILITY OF Eucalyptus grandis WOOD
RESUMO Devido ao fato de a madeira in natura possuir características de permeabilidade inadequadas para algumas aplicações, diversas técnicas de processamento foram desenvolvidas, como tratamentos hidrotérmicos e congelamento, que visam melhorar essas propriedades. O objetivo deste estudo foi analisar os efeitos do tempo e da temperatura de tratamento n
Rev. Árvore. Publicado em: 07/10/2019
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2. Retificação térmica, termorretificação, tratamento térmico, tratamento com calor ou modificação térmica?
Resumo As pesquisas brasileiras sobre o processo que tem sido denominado de retificação térmica, termorretificação, tratamento térmico, tratamento com calor e modificação térmica vêm crescendo desde o ano 2000. Como a padronização de conceitos é algo importante para o desenvolvimento científico de uma determinada área, o objetivo deste trabalh
Ciênc. Florest.. Publicado em: 30/05/2019
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3. The Effect of Post-Heat Treatment in MDF Panels
This study was to evaluate the effect of post-heat treatment on the physical and mechanical properties of MDF (Medium Density Fiberboard) panels. Commercial MDF panels were produced in Brazil using Pinus wood and urea-formaldehyde (UF) adhesive. The post-heat treatments were carried in a factorial 3 x 2 (three temperatures of heat treatment - 200, 225 and 25
Mat. Res.. Publicado em: 05/01/2017
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4. Colour responses of two fast-growing hardwoods to two-step steam-heat treatments
Colour changes by thermal treatments are a good alternative to increase wood quality, especially for non-structural uses. In this study, rose gum (Eucalyptus grandis) and Sydney blue gum (Eucalyptus saligna) woods from Southern Brazil were thermally treated under different conditions (steam pre-treatment in an autoclave at 127 °C for 1 hour and heat treatme
Mat. Res.. Publicado em: 18/03/2014
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5. Modification of static bending strength properties of Eucalyptus grandis heat-treated wood
The present study describes the effect of thermal rectification on physical and mechanical properties of Eucalyptus grandis wood at different levels of temperature and time. Samples of Eucalyptus grandis wood (10 × 10 × 200 mm) were heat-treated at 180, 200, 220 and 240 °C during 4 and 8 hours. The mechanical properties of heat-treated and untreated sampl
Mat. Res.. Publicado em: 11/10/2012
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6. Surface Characterization Techniques applied in heat-treated wood / Utilização de técnicas de caracterização de superfícies em madeiras tratadas termicamente
The main aim of this work was the characterization of changes of properties occurred on the surface and structure of heat-treated wood in response to thermal treatments. In order to cover different types of heat-treated wood, two species were elected as models for two great groups of woods, the so-called hard and soft woods. The samples were thermally treate
Publicado em: 2009
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7. Caracterização estrutural e composicional do carvão vegetal derivado de madeira e bagaço de cana-de-açucar / Structural and composilional characterization of charcoal derived from wood and sugar cane bagasse
During the last few years, the industrial interest for the utilization of biomass and its byproducts has being increased very fast. In particular, the application of charcoal for thermo reduction of minerais (e.g. carbothermic reduction of quartz into silicon) is very attractive as an environmentally friend process in comparison with coal. In Brazil, the sug
Publicado em: 1999
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8. Desenvolvimento de uma camara frigorifica encamisada para estocagem de frutas e hortaliças
A jacket system for cold storage room of perishable goods was designed and its performance evaluated using electric resistances as heating load. The jacket consisted of plywood panels, 1,0 cm-thick (except a 2 cm-thick floor) treated for vapour barrier and arranged inside a conventional cold room, forming a 5 cm-duct surrounding the14 - room. Air (16.3 m3/mi
Publicado em: 1995