METHOD OF PRODUCING OF CONDUCTING COATING ON PRODUCTS FROM MAGNESIAN ALLOY Russian patent published in 2015 - IPC C23C22/05 C23C22/37 

FIELD: metallurgy.

SUBSTANCE: method includes degreasing of products in gasoline, drying in air at the room temperature, alkaline processing in the solution containing 400-450 g/l of sodium hydroxide at the temperature 100-120°C, washing with warm and cold flowing water, processing in the solution containing 100-150 g/l of chromic anhydride at the temperature 15-30°C, washing in the trapping bathtub with the distilled cold water, washing with flowing cold water and application of chemical oxide coating in the solution containing, g/l: chrome anhydride - 4.0-8.0, fluoric sour ammonium - 1.5-2.0, ferricyanic potassium - 0.5-1.0, at the temperature 15-30°C within 10-20 minutes. Thickness of the coating layer is 0.5-5.0 mcm.

EFFECT: making a conducting coating stable to corrosion and with uniform thickness along the whole surface of the processed product.

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