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2 254 396

(13)

(51)

IPC

(21) (22)

Application

2003128356/02, 2003-09-19

(24)

Start date

2003-09-19

(22)

Actual filing date

2003-09-19

(45)

Published

2005-06-20

(72)

Inventor

Barabash A.A.Barabash M.A.Kolmykov V.I.Pereverzev V.M.

(73)

Holder

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

METHOD OF CARBONITRIDING METALS IN PASTES Russian patent published in 2005 - IPC

Abstract RU 2254396 C1

FIELD: chemical-and-thermal treatment of metals and alloys; process of fast carbonitriding in pastes.

SUBSTANCE: proposed method of steel articles in paste containing carbon black and nitrogen-containing component; used as nitrogen-containing component is carbamide at the following relationship of components, mass-%: carbamide, 50-55; carbon black, 50-45. Carbonitriding is performed at delay for 4 h in furnace at temperature of 550°C.

EFFECT: possibility of forming hardened layers possessing high microhardness and wear resistance.

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RU 2 254 396 C1

Authors

Barabash A.A.

Barabash M.A.

Kolmykov V.I.

Pereverzev V.M.

Dates

2005-06-20—Published

2003-09-19—Filed