WOOD-WORKING METHOD AND APPARATUS Russian patent published in 2004 - IPC

FIELD: wood-working industry, in particular, thermal processing of wood, wood materials and wood products.

SUBSTANCE: method involves heating air in chamber at heating rate of 30-45⁰C/hour to temperature of 130-165⁰C, with following subjecting of wood to the action of water vapors for 0.5-1.75 hours; heating resultant gas-vapor medium in chamber at heating rate of 4-8⁰C/hour to temperature of 160-2000C; processing wood with water vapors for 0.5-1.75 hours, with following heating of gas-vapor medium in chamber at heating rate of 4-8⁰C/hour to temperature of 160-200⁰C and holding wood at said temperature for 2.5-6 hours; subjecting wood to the action of water vapors for 0.5-1.75 hours, with following heating of gas-vapor medium in chamber at heating rate of 4-8⁰C/hour to temperature of 160-200⁰C; stopping heating process; after expiring of 1-3.5 hour period, processing wood with water vapors for 0.5-1.75 hours by supplying into chamber of water vapors having temperature of 120-160⁰C and discharging gas-vapor medium from chamber. Also described are wood-working apparatus, construction member and work piece manufactured from wood processed by said method. Method allows wood material of thickness exceeding 200 mm to be processed.

EFFECT: reduced average residual moisture content of processed wood and reduced power consumed for wood working process.

21 cl, 6 dwg, 1 tbl