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2 123 067

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C1

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IPC

(21) (22)

Application

97109956/02, 1997-06-11

(22)

Actual filing date

1997-06-11

(45)

Published

1998-12-10

(72)

Inventor

Evgen'Eva M.I.Mjakisheva E.A.Skvortsova L.B.Nabatova E.A.Mal'Tseva N.V.Ikonnikov I.V.Bojtsov G.P.Chumaevskij O.V.

(73)

Holder

Aktsionernoe Obshchestvo

SOLUTION FOR PHOSPHATING STEEL SURFACES Russian patent published in 1998 - IPC

Abstract RU 2123067 C1

FIELD: machine building, power machine building electrical and radio engineering, more particularly chemical treatment of metal surfaces. SUBSTANCE: solution comprises, g/l: zinc ions (Zn2+), 0.8-8.7; calcium ions((Ca2+)), 0.76-9.0; phosphate ions (in terms of HNO3(NO-3

)), 1.6-19.5; oxidizer P2O5), 3.6-31.5; potassium hydrofluoride waste containing at least 75% main substance, 0.048-0.615; and not more than 2 l of the water, the balance. The solution makes it possible to increase adhesion and corrosion resistance of coating in combination with paint coating. EFFECT: improved properties of the solution. 3 ex, 1 tbl

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RU 2 123 067 C1

Authors

Evgen'Eva M.I.

Mjakisheva E.A.

Skvortsova L.B.

Nabatova E.A.

Mal'Tseva N.V.

Ikonnikov I.V.

Bojtsov G.P.

Chumaevskij O.V.

Dates

1998-12-10—Published

1997-06-11—Filed

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