Defectos producidos por el secado artificial en bumelia obtusifolia
Defects caused by artificial drying in bumelia obtusifolia
Date
2014-12-01Author
Arias, Esteban
Degano, Walter Ariel
Otaran, Jose
Metadata
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Este trabajo estudia los defectos producidos por el secado artificial con el fin de establecer calidad de la madera seca.
Se utilizó un secadero piloto, capacidad de 2 m3. Los ensayos fueron realizados con madera aserrada de Bumelia obtusifolia de una pulgada de espesor. Se analizaron un total de 480 tablas y dos programas de secado. Se evaluaron los alabeos según normas chilenas NCh 992/1 of-74, NCh 993 EOf 72 y NCh 196 of-86. El diseño experimental se ajustó a un multifactorial 23. Se fijó como variable dependiente “calidad de la madera seca” y como factores de variación: a) Tipo de corte; b) Longitud de la tabla; c) Temperatura final. Se concluyó que la media real se encuentra entre 2,62 y 2,70, calidad de madera seca defectuosa y condiciones de secado poco adecuadas. El único factor que influyó estadísticamente en la calidad de madera seca, es el tipo de corte. This paper studies the defects caused by artifcial drying in order to establish the quality of dry wood. We used a pilot dryer with a capacity of 2 m3. The tests were performed with sawn wood of Bumelia obtusifolia 1 inch thick. A total of 480 boards and two drying programs were analyzed. Warps were evaluated according to Chilean standards NCh of-74 992/1, 993 NCh EOF NCh 72 and 196 of-86. The experimental design was adjusted to a multifactorial 23. “Quality of dry wood” was set as the dependent variable and a) Type of cut; b) Length of the board and c) Final temperatura were set as variation factors. It was concluded that the true mean is between 2.62 and 2.70, and a defective quality of dry wood and unsuitable drying conditions are found. The only factor with statistical influence in the quality of dried wood is the type of cut.
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https://hdl.handle.net/20.500.12219/2692http://www.yvyrareta.com.ar/index.php/component/k2/item/1-defectos-producidos-por-el-secado-artificial-en-bumelia-obtusifolia
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