WEAR-RESISTANT COATING PRODUCTION METHOD Russian patent published in 2013 - IPC C25D11/08 C25D11/16 

FIELD: electrical engineering.

SUBSTANCE: method involves microarc oxidation of the electrodeposited layer of iron-aluminium coating on a steel component part during 60-90 min, electric current density being 20-40 A/dm², with supply of pressurised oxygen onto the component part surface under pressure via a sprayer contacting with the cathode at 5-15°C, oxygen flow rate being 0.1-1.0 m³/min per 1 sqm; the electrolyte composition is as follows, kg/m³: potassium hydrate - 6-8, boracic acid - 40-50; a reciprocal and rotary movement are imparted to the component part.

EFFECT: increased micro-hardness and wear resistance of steel component parts, oxidated layer thickness increase up to 300-500 mcm, wear-resistant coating production method simplification.

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