UTILIZATION OF MICROWAVE NON-CONVENTIONAL ENERGIES FOR REDUCING THE HYGROSCOPICITY, FOR INCREASING THE DIMENSION STABILITY AND RESISTANCE TO BIOLOGICAL ATTACKS ON WOOD AND CELLULOSIC MATERIALS

摘要

The invention relates to the utilization of microwave non-conventional energies for reducing the hygroscopicity, increasing the dimensional stability and resistance to biological attack on wood and cellulosic materials. According to the invention, the utilization of non-conventional energies is achieved by means of a portable installation consisting of a parallelepipedal metal enclosure () ensuring a good sealing against the radiation escape, the enclosure () being open to one of its extremities by a slot () whereon there is mounted a waveguide that is specially calculated and designed for this application, the guide is extended with a vent () having the role of collecting the waves and focusing them to the area to be treated in order to achieve a homogenous distribution and a deep penetration for the created heat and radiation flux, and the waveguide communicates with the microwave generator by means of a flange; the installation comprises also a fan () for air cooling, a touch-screen display () for adjusting the working parameters, a supply cable (), some data cables () and a high voltage cable ().