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2 196 672

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IPC

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Application

2001133681/02, 2001-12-17

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Start date

2001-12-17

(22)

Actual filing date

2001-12-17

(45)

Published

2003-01-20

(72)

Inventor

Kablov E.N.Lomberg B.S.Chudareva L.P.Ryl'Nikov V.S.Ovsepjan S.V.Orekhov N.G.Tolorajja V.N.Grigor'Eva T.I.Lukin V.I.Markina L.S.

(73)

Holder

Federal'Noe Gosudarstvennoe Unitarnoe Predprijatie Nauchno-Issledovatel'Skij Institut Aviatsionnykh Materialov"

METHOD FOR MAKING ROTOR OF GAS TURBINE ENGINE Russian patent published in 2003 - IPC

Abstract RU 2196672 C1

FIELD: processes for making rotors operating in high temperature modes. SUBSTANCE: method comprises steps of placing lock portion of vane of cast fire-resistant nickel alloy with grain size of γ′ phase equal to 0.1 - 0.5 micrometers in groove of disc of fire-resistant deformed nickel alloy with grain size 5 - 15 micrometers; joining disc with vane by high temperature welding in temperature range (t_cdγ′-10^°C)-(t_cdγ′+30^°C), where t_cdγ′ - temperature of complete dissolution of γ′ phase of fire-resistant deformed alloy; realizing heat treatment comprising stages of quenching and aging. Method allows to enhance reliability and resource of rotor at working temperature of disc rim exceeding 850 C. EFFECT: small mass, enhanced reliability, increased useful life period of rotor. 5 cl, 2 tbl

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RU 2 196 672 C1

Authors

Kablov E.N.

Lomberg B.S.

Chudareva L.P.

Ryl'Nikov V.S.

Ovsepjan S.V.

Orekhov N.G.

Tolorajja V.N.

Grigor'Eva T.I.

Lukin V.I.

Markina L.S.

Dates

2003-01-20—Published

2001-12-17—Filed