METHOD OF MULTIFUNCTIONAL COATINGS PLASMA SPUTTERING Russian patent published in 2016 - IPC C23C4/12 

FIELD: instrument making.

SUBSTANCE: invention can be used for multifunctional coatings plasma sputtering in instrument making and machine building, as well as in making of intraosseous implants with metal and composite coatings. Working gas is supplied into arc, burning between cathode and copper anode, with plasma jet formation. Sprayed material is supplied into plasma jet by carrier gas on preprocessed surface. Plasma spraying is carried out in vacuum at swinging motion of plasmatron perpendicular to its motion direction and coated surface is additionally exposed to pulsed gas discharges with current of 90±2 A with current pulses duration of 0.2±0.02 s and with pulses repetition frequency of 50±2 Hz. Plasmatron swinging is performed with rolling angle of 15-25° with frequency of 20-40 motions per minute and translation length of 10-15 mm at movement speed of 20-30 motions per minute.

EFFECT: method ensures production of coating formed from particles with optimum adhesion properties and uniformity of coating.

1 cl, 1 dwg, 4 tbl