METHOD OF WOOD TREATMENT UNDER PRESSURE Russian patent published in 2004 - IPC

FIELD: wood-working industry.

SUBSTANCE: the invention presents a method of a wood treatment under pressure and is pertinent to the field of wood-working industry. The method of wood treatment under pressure provides, that wood items to be subjected to treatment are placed in a pressure chamber. The pressure chamber contains also a medium, in which the necessary pressure is formed and which envelops the wood items more than on the one side, and a secondary medium - in the form of a fluid medium is added inside the chamber at least before the pressure is fed. When the medium, in which the pressure is boosted, is exposed to pressurization, the wood items are subjected to the multilateral pressure. At that their uniform squeezing is exercised. The pressure chamber is supplied with means to control the quantity of the secondary medium, which penetrates into the wood during the time of treatment. These means of control may comprise the valves for pumping the secondary medium out from the shells, which envelope the wood items and are impermeable for the secondary medium. The invention allows to decrease the time of wood items treatment under pressure.

EFFECT: the invention ensures a decrease of duration of wood items treatment under pressure.

5 cl, 2 dwg