Tecnologia da madeira: conhecimento tecnológico e viabilidade de espécies madeireiras da Amazônia

Abstract

Knowledge about the technological properties of wood makes it possible to obtain tools that help to advocate their common applications and uses. It is known that not all timber species have the same market visibility and when studying their technological value, the high possibility of comparison or similarities between these species is evident. Thus, the objective of this study was to propose groups of Amazonian woods with similar (similar) technological properties in order to encourage the diversification of species on the list of commercial interest in a forest management area. They were used belonging to a management area of a private company in the city of Itacoatiara, AM. It was identified through “in loco” research, which species make up the exploitation list and their commercial aptitude. The allocation of wood in groups was carried out by means of criteria in which they were identified as specifications required for good performance. Values were determined for each property, based on the values of traditionally traded wood. For the physical characterization of the wood, disks were removed from the shaft of each tree, determining the density, dimensional stability. For the machining process, the parts used according to the definitions were used. The results show that the average value for a basic specific mass of the group was 0.70 g/cm- 3, and the retractability parameters varied from stable to unstable, with an average anisotropy coefficient of 1.7. The machining evaluation shows that all species are suitable for planing, cutting, drilling with drills and nails, with excellent acceptance. From the analyzed group, three species according to the company's commercial records are less commercialized, so through cluster analyzes it was possible to group and separate differentiated ones that similar characteristics define that C. micranta, C. glabrum and P. suaveolens are apt to replacement. The study identifies the similarity between species considered noble and of high market outlet with those of lesser commercial value, indicating them as good substitutes for each other.