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2 225 895

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(51)

IPC

(21) (22)

Application

2002101561/02, 2002-01-14

(24)

Start date

2002-01-14

(22)

Actual filing date

2002-01-14

(45)

Published

2004-03-20

(72)

Inventor

Zhuravleva S.L.Bonokina M.N.Chumaevskij V.A.Pustovaja T.A.Savel'Eva I.V.Fomina O.N.

(73)

Holder

Zakrytoe Aktsionernoe Obshchestvo

METHOD OF DEPOSITING PHOSPHATIZING COMPOSITION Russian patent published in 2004 - IPC

Abstract RU 2225895 C2

FIELD: chemical metal treatment. SUBSTANCE: invention relates to chemically treating surface of iron-based metal before applying lacquer coatings. In particular, metallic surface is treated with aqueous solution containing following ions, g/l: zinc 1.5-3.6, manganese 0.45-0.7, phosphate 7.8-16.8, nitrate 1.1-1.8, and also 3.1-3.6 g/l hydroxylamine sulfate. Before treatment of metallic surface, free acidity of solution is adjusted to 0.7-2.3 "points". EFFECT: achieved high corrosion resistance and good adhesion at lowered cost price of composition. 3 ex

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RU 2 225 895 C2

Authors

Zhuravleva S.L.

Bonokina M.N.

Chumaevskij V.A.

Pustovaja T.A.

Savel'Eva I.V.

Fomina O.N.

Dates

2004-03-20—Published

2002-01-14—Filed