METALLIC PART TREATMENT METHOD

摘要

electrochemical cleaning of parts of aluminum alloys. SUBSTANCE: method provides removal of high temperature burnings formed at process of isothermic forging of parts. Method comprises steps of cleaning and simultaneously passivating surface of parts in (3-7)% solution of sodium hexametaphosphate at 18-60 C and electric current density (1-20)A/sq.dm. EFFECT: lowered time period for cleaning parts, enhanced quality of cleaned part surface. 3 dwg, 2 tbl _