METHOD OF TREATMENT OF METALLIC PART, STRUCTURAL UNIT CONTAINING THIS PART AND THE METHOD OF RESTORATION OF METALLIC PART

摘要

FIELD: technologies. ^ SUBSTANCE: invention refers to the treatment of metallic surface that allows production of metallic parts with improved corrosion resistance and fatigue properties. The method of treatment of metallic part involves the bombardment of the metal surface containing the aluminum allow with the sphere-shaped particles with averaged diameter no more than 200 mm using compressed air or gas, formation of film on said metal surface using the method of chemical conversion treatment following the surface bombardment. The intensity of surface bombardment with particles in the method, defined on the basis of control plate bend using Almen scale is no less than 0.002 N, and the surface bombardment is performed with the possibility to minimize the difference in roughness before and after treatment to the value of difference of averaged deviations of Ra profile that does not surpass 1 mm. ^ EFFECT: method can be applied for restoration of metallic parts for closing of defects or scratches on the surface of metallic part. ^ 6 cl, 1 dwg, 7 ex