FIELD: electrodeposition of coatings. SUBSTANCE: method includes two-step electrochemical treatment of parts in zinc electrolyte: first in cathode and then in anode mode. The first step lasts until sludge forms on the surface of parts, and duration of the second step is equal to sludge removal time. EFFECT: increased adhesion of coatings to aluminium and aluminium alloy parts. 1 tbl
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