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2 228 388

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Application

2000129020/02, 2000-11-22

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Start date

2000-11-22

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Actual filing date

2000-11-22

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Published

2004-05-10

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Inventor

Gusarov V.I.Prozorov V.V.Lysenko A.A.Slepokon' Ju.I.Doil'Nitsyn V.A.Oblogin A.V.Bukreev A.N.

(73)

Holder

Gosudarstvennoe Predprijatie Kurskaja Atomnaja Stantsija

METHOD OF PASSIVATION OF EQUIPMENT AND ARTICLES MADE FROM PEARLITE STEELS Russian patent published in 2004 - IPC

Abstract RU 2228388 C2

FIELD: making of corrosion-resistant coats on equipment and articles made from pearlite steels; corrosion protection of various power equipment; mechanical engineering. SUBSTANCE: proposed method includes treatment in aqueous solution containing 0.01-50 g/l of aluminum nitrate having formula Al(NO3)3-9H2O continued for 1.5-50 h at temperature of 0 to 89 C or 101 to 300 C followed by flushing articles or equipment with aqueous solution of sodium, potassium or ammonium nitrite. EFFECT: improved protective properties of pearlite steels; avoidance of transfer of finely dispersed particles from surface to solution; possibility of performing operations at room temperature. 3 cl, 2 tbl

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RU 2 228 388 C2

Authors

Gusarov V.I.

Prozorov V.V.

Lysenko A.A.

Slepokon' Ju.I.

Doil'Nitsyn V.A.

Oblogin A.V.

Bukreev A.N.

Dates

2004-05-10—Published

2000-11-22—Filed

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