ELECTROLYTE FOR MICROARC ANODIC TREATMENT OF ALUMINUM AND ITS ALLOYS Russian patent published in 2000 - IPC

FIELD: electrochemical formation of oxide wear-resistant coats on aluminum and its alloys. SUBSTANCE: proposed electrolyte contains, g/l: potassium hydroxide, 2.0-3.0; sodium silicate solution, 8.0-10.0; hydrogen peroxide, 2.5-10.0; copper oxide, 10.0-40.0; water, the balance. Increase of antifriction properties of oxide coat is achieved thanks to inclusion of copper into phase composition of coat which is solid lubricant for rubbing wearable parts in joint and decreases friction coefficient of rubbing surfaces considerably reducing magnitude of their wear-out. EFFECT: reduced magnitude of wear-out of rubbing surfaces. 1 cl, 1 tbl