Avaliação da madeira de teca jovem (Tectona grandis L. f.) visando uso em movelaria

Abstract

Much has been discussed about the possibility of using young teak wood for making furniture industries items and decoration with finishing quality and smooth surface, uniform color, aesthetic appeal and “design”. The proposed work aims at evaluating the behavior of the wood of Tectona grandis Lf compared to machining tests (planer, sanding, drilling, tearing and cracking per nail), physical-mechanical tests (apparent and basic density, static bending tests, Janka hardness, shear and compression tests) and evaluation of adhesion of coatings. The material used was obtained from experimental planting in the region of Cáceres-MT, with approximately 11 years of age, resulting from three spacings and it was used the NBR 7190:1997, ASTM D 1666-87 (2004), the work of IBDF / PDS - LPF (1998) and ABNT NBR 11003/2010. The results were evaluated by considering the statistical interpretation completely randomized experimental design, applying normality tests and analyzes of variance by means of comparison of means by Tukey test at 5% significance level. Based on the results and discussions can be concluded that the young teak evaluated presented a density and volume variation similar to the older wood commonly sold. The values of physical-mechanical tests have shown satisfactory behavior, providing good performance when used in the manufacture of products, in particular in the field of furniture industries. In machining, the wood has been described as good to excellent, with good acceptance of the nails. The results of adhesion tests have shown excellent performance in both the materials used differ from one another. These facts suggestthe use of wood for uses valued more than wood, such as furniture, and othercoatings.