Plywood
Mostrando 13-24 de 28 artigos, teses e dissertações.
-
13. Potential of Australian Cedar wood (Toona ciliata M. Roem var. australis) for the manufacturing of greater added value products / Potencial da madeira de Cedro Australiano (Toona ciliata M. Roem var. australis) na manufatura de produtos de maior valor agregado
The objective of this work was to study the potential of 4 and 18 years old wood of Australian Cedar (Toona ciliata) for the production of plywood, OSB, particleboard and cement-wood panels. The woods from four different places were compared: Campo Belo, Cana Verde, Santo Antônio do Amparo and Marechal Floriano. Plywood panels containing 5 veneers were prod
Publicado em: 2009
-
14. Evaluation of the equivalent slip modulus of nailed connections for application in linear analysis of plywood timber beams
The study of the stiffness of laterally loaded semi-rigid connections in plywood-timber beams is justified by the influence that the deformation of the connection has on the overall displacements of the structure. Semi-rigid connections are characterized by the occurrence of a slip between the connected pieces. The characterization of a connection is usually
Materials Research. Publicado em: 2008-06
-
15. Produção de painéis de madeira com clones de Eucalyptus urophylla
This work has the objective of producing and evaluating the following wood panels: plywood, particleboards and OSB panels. From the results of this evaluation, it is intended to indicate which of the 6 clones of Eucalyptus urophylla presents the greatest potential for the production of these panels. The material object of study is from clonal tests owned by
Publicado em: 2008
-
16. Avaliação teórica e experimental de vigas em "I" pré-fabricadas de madeira com flange de painéis de lâminas paralelas (LVL) e alma de painéis de partículas orientadas (OSB) e compensado
Os produtos engenheirados de madeiras (PEM) vêem se expandindo globalmente, estes são produzidos a partir da junção de mais de um composto de madeira, utilizando a melhor propriedade de cada um desses elementos, dando qualidade e eficiência as estruturas. As vigas em I pré-fabricadas de madeira, que usam painéis estruturais para o material da alma e a
Publicado em: 2008
-
17. Aplicação de adesivo poliuretano à base de mamona na fabricação de painéis de madeira compensada e aglomerada. / Application of polyurethane resin based on castor oil on manufacture plywood and particleboard.
Os painéis compensados e aglomerados são produtos com aplicação difundida, principalmente, na indústria moveleira e no setor da construção civil. Na fabricação destes produtos, tradicionalmente, são usadas as resina a base de fenol-formaldeído e uréia-formaldeído. Porém, há uma constante busca por inovações que visem o aproveitamento dos rec
Publicado em: 2005
-
18. Alternative castor oil-based polyurethane adhesive used in the production of plywood
Plywood is normally produced with urea-formaldehyde and/or phenol-formaldehyde adhesives. However, the former is considerably toxic and environmentally damaging, while the latter is expensive, thus motivating the search for alternative raw materials in plywood production. The castor oil-based polyurethane adhesive developed at the São Carlos Institute of Ch
Materials Research. Publicado em: 2004-09
-
19. Potential use of wood from Eucalyptus grandis x Eucalyptus urophylla hybrid clones for veneer and plywood production. / Potencial da madeira de clones do híbrido Eucalyptus grandis x Eucalyptus urophyla para a produção de lâminas e manufatura de painéis compensados.
The main objective of this work was to evaluate the potencial of eucalyptus grandis x Eucalyptus urophylla hybrid clones wood for plywood and veneer production. Five (5) trees were collected for each clone (I and II) and 2 logs of each tree, being one from base (A) and other subsequent one (B), totaling 20 logs. The logs after debarked and heated in hot wate
Publicado em: 2002
-
20. Sintese de resina fenolica tipo resolica a partir de residuos da fabricação de resina novolaca : aplicação como adesivo
The work presented here concerns the synthesis of a phenolic resin throught the condensation reaction of phenol-formaldehyde with a residue that comes from a solvent extraction of novolaca phenolic resin. Glue made with these resins were evaluated with knife-test and mechanical plywood shear tests. The results were compared with that of a standard resin. The
Publicado em: 1996
-
21. 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
-
22. Occupational asthma caused by exposure to neurospora in a plywood factory worker.
A 24 year old man developed severe asthma two years after starting to work in a plywood plant. Four years later the patient had to stop working because of the increasing severity of his asthma. Three months after leaving his job, the patient's asthma was greatly improved. His job consisted of placing plywood sheets into a drying machine. The plywood sheets h
-
23. Method for Growing Plants Aeroponically 1
A simple, inexpensive system for growing plants with their roots bathed in nutrient mist is described. The aeroponics system uses a spinner from a home humidifier to propel nutrient solution into a polyethylene-lined plywood box atop which plants are supported on plastic light-fixture “egg crating.” Success in growing a number of herbaceous and woody spe
-
24. The development of the anterior abdominal wall in the rat in the light of a new anatomical description.
The development of the ventral abdominal muscles of the albino rat was studied histologically in 60 embryos and 10 postnatal specimens. The lower thoracic myotomes were seen to migrate ventrally in the lateral body wall, cross the middle line and continue with their contralateral fellows of the opposite side, thus forming a digastric mesodermal primordium. D