FIELD: metallurgy.
SUBSTANCE: invention relates to electroplating and can be used in aeronautics. Method of coating on substrate from aluminium or aluminium alloy includes oxidation, forming oxide layer, having thickness in range from 2 to 12 mcm, treatment with sol-gel, forming layer of sol-gel, carried out after oxidation stage, mechanical treatment, during which at least one section to be treated is subjected to machining so as to eliminate on this section a sol-gel layer and an oxide layer, carried out after the sol-gel treatment step, and solid oxidation, forming a solid oxide layer, carried out after the machining step, in which treatment of sol-gel is carried out on the oxide layer without pre-filling of said layer and in which sol-gel penetrates into pores of oxide layer during sol-gel treatment step.
EFFECT: technical result is increase of corrosion resistance and wear resistance of substrate.
7 cl, 2 dwg
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