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2 090 311

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C1

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IPC

(21) (22)

Application

93054978/02, 1993-12-10

(22)

Actual filing date

1993-12-10

(45)

Published

1997-09-20

(72)

Inventor

Dorofeev Ju.G.Sergeenko S.N.Similejskij B.M.Tsebikov A.S.

(73)

Holder

Novocherkasskij Gosudarstvennyj Tekhnicheskij Universitet

METHOD FOR MANUFACTURE OF HIGH-DENSITY POWDER BIMETAL BRONZE-IRON PRODUCTS Russian patent published in 1997 - IPC

Abstract RU 2090311 C1

FIELD: powder metallurgy. SUBSTANCE: method involves forming bimetal billet; sintering, heating for short period of time and providing additional compaction of billet. Bimetal billet is formed by making first layer with following premolding to obtain porosity of 40-45%; providing second layer with following final joint pressing of both layers to obtain porosity of 15-20%. EFFECT: increased efficiency, simplified method and improved quality of powder. 1 dwg

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RU 2 090 311 C1

Authors

Dorofeev Ju.G.

Sergeenko S.N.

Similejskij B.M.

Tsebikov A.S.

Dates

1997-09-20—Published

1993-12-10—Filed

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