PROCESS OF MICROARC MANUFACTURE OF PROTECTIVE FILMS ON SURFACES OF METALS AND THEIR ALLOYS Russian patent published in 1996 - IPC

Abstract RU 2061107 C1

FIELD: mechanical engineering, instrumentation engineering, shipbuilding. SUBSTANCE: process refers to protection of alloys of titanium and aluminium against atmospheric and electrochemical corrosion and to giving them high decorative appearances. Coat is deposited under conditions of microarc discharges on surface of article in galvanostatic mode with current density 5-15 A/sq.dm in the course of 5-15 min in aqueous solution containing sodium hexamethaphosphate 20-50 g/l and sodium or ammonia methavanadate 10-25 g/l at pH value 3-8. Films are manufactured on aluminium and its alloys with voltage 140- 220 V and on titanium and its alloys with voltage 110-150 V. EFFECT: enhanced efficiency of process. 3 cl, 1 tbl

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RU 2 061 107 C1

Authors

Rudnev V.S.

Gordienko P.S.

Kurnosova A.G.

Orlova T.I.

Dates

1996-05-27Published

1991-07-17Filed