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2 250 936

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IPC

(21) (22)

Application

2003128355/02, 2003-09-19

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Start date

2003-09-19

(22)

Actual filing date

2003-09-19

(45)

Published

2005-04-27

(72)

Inventor

Serebrovskij V.I.Serebrovskaja L.N.Serebrovskij V.V.Safronov R.I.Konjaev N.V.

(73)

Holder

Kurskaja Gosudarstvennaja Sel'Skokhozjajstvennaja Akademija Im. Prof. I.I. Ivanova

METHOD FOR ELECTROLYTIC DEPOSITION OF IRON-BORON ALLOY-BASED COAT Russian patent published in 2005 - IPC

Abstract RU 2250936 C1

FIELD: electrolytic deposition of hard, wear resistant coats, in particular iron-boron coats useful in surface reducing and hardening.

SUBSTANCE: claimed method includes coat deposition from electrolyte containing (kg/m³): boric acid 2.5-60; iron (II) chloride 300-450; hydrochloric acid 0.5-1.5 and water, by using alternate asymmetric current with asymmetric coefficient of 1.2-6; cathode current density of 15-60 A/dm³, at electrolyte temperature of 20-40°C and pH 0.8. Method of present invention makes it possible to increase capability and deposition rate; to decrease electrolyte temperature; and to improve cohesive resistance between coat and support.

EFFECT: coats of increased microhardness and wear resistance.

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RU 2 250 936 C1

Authors

Serebrovskij V.I.

Serebrovskaja L.N.

Serebrovskij V.V.

Safronov R.I.

Konjaev N.V.

Dates

2005-04-27—Published

2003-09-19—Filed