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2 066 597

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C1

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IPC

(21) (22)

Application

94015130/02, 1994-04-25

(22)

Actual filing date

1994-04-25

(45)

Published

1996-09-20

(72)

Inventor

Dorofeev Ju.G.Sergeenko S.N.Chervonyj V.A.

(73)

Holder

Novocherkasskij Gosudarstvennyj Tekhnicheskij Universitet

METHOD OF LOW-POROUS TUBULAR POWDER PIECES PRODUCTION Russian patent published in 1996 - IPC

Abstract RU 2066597 C1

FIELD: chemical industry. SUBSTANCE: method to produce low-porous powder pieces provides for moulding of double layer blank with easy melting surface layer, its following sintering combined with impregnation of main layer material with easy melting material of surface layer. In the case moulding of double layer blank is exercised by gas thermal spraying on cylindrical surface of base pressed under pressure of 500 -700 MPa, covering with mass of 12 -18 % of base mass. EFFECT: increased productivity. 1 dwg, 1 tbl

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RU 2 066 597 C1

Authors

Dorofeev Ju.G.

Sergeenko S.N.

Chervonyj V.A.

Dates

1996-09-20—Published

1994-04-25—Filed

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