ОСОБЛИВОСТІ ТЕПЛОВОГО ОБРОБЛЕННЯ ДЕРЕВИНИ РІЗНИХ ПОРІД
Abstract
FEATURES OF HEAT TREATMENT DIFFERENT SPECIES WOOD
O. Pinchevska, V. Nesvidomin, A. Spirochkin, O. Gorbachova
Abstract. The article presents the main results of sawn timber low-temperature drying kinetics experimental studies to determine the thermodynamic parameters of the most common commercial species of wood: oak, pine, alder. The results allow to calculate the thermodynamic factors in the equation of the sawn timber current moisture content at each stage of the low-temperature drying at any temperature in the modern chambers. Taking into account the thermodynamic characteristics of the process in modern chambers it is proposed a method for calculating the duration of the low-temperature drying based on the solution of the equation according to time. The method and the results of experimental research to determine some physical, mechanical and technological properties hornbeam wood thermomodified by different modes are given. Established that the high temperatures according to regime parameters changed colour wood hornbeam from light brown to black. Determined that after the heat treatment the hornbeam wood can not be used as resonant material. Heat treatment has ambiguous influence on the mechanical and technological properties of hornbeam wood.
Keywords: heat treatment, saw timber, oak, pine, alder, hornbeam, effective use, low-temperature drying, quality, thermal modification, physical and mechanical properties.
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