FIELD: woodworking industry.
SUBSTANCE: invention is related to methods for wood stocks impregnation, such as rail sleepers, pillars and piles. Method for impregnation of wood cylindrical stock with oil antiseptic includes processing with ultrasound and alternating pressure. Impregnation is executed with simultaneous exposure of stock to static pressure of 4-5 MPa with pulses of alternating pressure of 1 MPa amplitude, at the same time end of stock is exposed to ultrasound with intensity of 13-17 W/cm2 for the whole length of impregnation processes.
EFFECT: improved quality and reduced time required for impregnation, possibility to impregnate cylindrical wood stocks with length of up to 6 m.
1 dwg, 1 tbl, 2 ex
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