MODIFIED WOOD PRODUCING METHOD

摘要

The invention relates to the woodwork and timber industry, in particular to producing modified wood sleepers. The inventive modified wood producing method consists in simultaneously drying, impregnating and pressing wood in oil-born wood preservative, wherein, during the entire process, the wood is exposed to the action of a pulse ultrasonic field with a frequency of 20 kHz and power of 4 kW, ultrasonic pulses of 2.3-3.0 min alternating with intervals of 6.0-6.5 min. Said invention makes it possible to increase the shape stability of sleepers made of modified wood.