FRICTION PAIR RECONDITIONING METHOD Russian patent published in 1999 - IPC

FIELD: mechanical engineering and other branches of industry. SUBSTANCE: first part of friction pair is oxidized by building up of oxide primarily inside part till relation of its internal and external layers equals 2-4 at electrolyte temperature of 35-45 C, with holding time of up to 40 min and current density of 8-12 A/sq.dm. Second part of friction pair is oxidized by building up to oxide primarily outside the part till relation of its internal and external layers equals 0.25-0.5 at electrolyte temperature not exceeding 5 C, with holding time of up to 30 min and current density of 8-12 A/sq.dm. EFFECT: enhanced wear resistance. 7 ex, 1 tbl