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2 036 247

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IPC

(21) (22)

Application

5056418/26, 1992-05-08

(22)

Actual filing date

1992-05-08

(45)

Published

1995-05-27

(72)

Inventor

Plaskeev E.V.Ovsjannikova L.V.Pavlenko T.I.Mamontova N.N.Kurdjukova E.A.Mikheeva N.I.Panfilov A.N.Galaktionova I.V.

(73)

Holder

Vserossijskij Institut Aviatsionnykh Materialov

TITANIUM ALLOYS PHOSPHATE COATING METHOD Russian patent published in 1995 - IPC

Abstract RU 2036247 C1

FIELD: metals corrosion-resistant covers. SUBSTANCE: method provides for titanium alloys degreasing, pickling, treatment in phosphatic solution, that has, in g/l: trisodium phosphate 5 - 50; ammonium monophosphate 50 - 5; ammonium fluoride 40 - 60; hydrofluoric acid (40 %) 15 - 20 ml/l; potassium or sodium silicofluoride and potassium or ammonium perfluorooctanesulfonate 0.05 - 0.15 under temperature of 18 - 25 C. EFFECT: method is used for titanium alloys corrosion-resistant covering. 2 tbl

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RU 2 036 247 C1

Authors

Plaskeev E.V.

Ovsjannikova L.V.

Pavlenko T.I.

Mamontova N.N.

Kurdjukova E.A.

Mikheeva N.I.

Panfilov A.N.

Galaktionova I.V.

Dates

1995-05-27—Published

1992-05-08—Filed