RESUMENEntre las especies del género Acacias, la Acacia melanoxylon o aromo australiano y la Acacia dealbata o aromo chileno, son dos especies aclimatadas en Chile con un interesante potencial industrial. En este trabajo, se estudian programas de secado a temperaturas convencionales y la calidad de la madera seca de A. melanoxylon y A. dealbata.Experimentalmente son realizados 8 ensayos de secado a temperaturas convencionales, usando un horno de secado convectivo de 0.3 m 3 de capacidad. El diseño experimental incluye como factores variables la especie (A. melanoxylon y A. dealbata), el espesor de la madera (25 y 50 mm) y el tipo de corte (tangencial y radial).Los resultados indican que para 25 o 50 mm de espesor, la A. melanoxylon y la A. dealbata, en corte radial y tangencial se dejan secar satisfactoriamente bajo un mismo programa de temperaturas convencionales. La calidad de la madera seca se ve favorecida por la carencia de colapso y la baja anisotropía de la contracción transversal.Palabras clave: calidad de secado, contracción, Acacia melanoxylon, Acacia dealbata.
ABSTRACTAcacia melanoxylon and Acacia dealbata are two Australian species well acclimated in Chile, both wood species with an interesting industrial potential. In this work, has been studied kiln drying runs and the wood drying quality of the sawn wood of Acacia melanoxylon and Acacia dealbata during kiln drying at conventional temperatures.Eight tests of kiln drying to conventional temperatures are made, using a convective drying of 0,3 m 3 of capacity. The experimental design includes as variable the species (A. melanoxylon an A. dealbata), the wood thickness (25 and 50 mm) and the cut-type (fl atsawn-wood and quartersawn-wood). The wood drying quality on the basis of European and Chilean standards is evaluated.The results show that for a same thickness, both species A. melanoxylon and A. dealbata, in fl atsawn
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