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2 410 202

(13)

(51)

IPC

B22F3/24(2006-01-01)

B24B1/00(2006-01-01)

B22F3/12(2006-01-01)

(21) (22)

Application

2009116306/02, 2009-04-28

(24)

Start date

2009-04-28

(22)

Actual filing date

2009-04-28

(45)

Published

2011-01-27

(72)

Inventor

Mel'Nikov Aleksandr Grigor'EvichGnjusov Sergej FedorovichSavchenko Nikolaj LeonidovichKul'Kov Sergej Nikolaevich

(73)

Holder

Uchrezhdenie Rossijskoj Akademii Nauk Institut Fiziki Prochnosti I Materialovedenija So Ran So Ran)

PROCEDURE FOR PRODUCTION OF ITEM OUT OF SINTERED COMPOSITE MATERIAL ON BASE OF TUNGSTEN CARBIDE WITH BINDING OF STEEL Russian patent published in 2011 - IPC B22F3/24 B24B1/00 B22F3/12

Abstract RU 2410202 C1

FIELD: machine building.

SUBSTANCE: as base of material there is used tungsten carbide, while as binding there is used Hadfield steel 110H13. The procedure consists in moulding powder mixture and in successive item sintering. Also, upon sintering a hardened quasi-amorphous tribo-layer is formed on surface of the item by high-speed friction treatment at rate of slide 20-30 m/sec and pressure 3-5 MPa during 1.5-2 min.

EFFECT: increased service life of items due to reduced friction factor.

5 cl, 3 ex

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RU 2 410 202 C1

Authors

Mel'Nikov Aleksandr Grigor'Evich

Gnjusov Sergej Fedorovich

Savchenko Nikolaj Leonidovich

Kul'Kov Sergej Nikolaevich

Dates

2011-01-27—Published

2009-04-28—Filed