METHOD FOR REMOVAL OF TITANIUM NITRIDE FILM FROM SURFACE OF STAINLESS STEEL PRODUCTS Russian patent published in 1995 - IPC

Abstract RU 2039851 C1

FIELD: metal protection. SUBSTANCE: method for removal of titanium nitride film from surface of stainless steel products includes preliminary electrochemical treatment of product in solution of potassium hydroxide with concentration of 3 g/l at anode current density of 20-50 A/sq.dm and voltage of 50-100 V for 45-75 s and subsequent treatment with solution of sulfuric acid (specific gravity of 1.89( at 90-95 C. EFFECT: higher efficiency.

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RU 2 039 851 C1

Authors

Mikhajlov V.N.

Shkuro V.G.

Danilov V.S.

Antropova O.V.

Dates

1995-07-20—Published

1992-08-17—Filed