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2 156 678

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C1

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IPC

(21) (22)

Application

99111527/02, 1999-06-02

(24)

Start date

1999-06-02

(22)

Actual filing date

1999-06-02

(45)

Published

2000-09-27

(72)

Inventor

Semenov V.N.Novikov V.I.

(73)

Holder

Oao Ob"Edinenie Ehnergeticheskogo Mashinostroenija Imeni Akademika V.P. Glushko"

METHOD OF MAKING SOLDERED STRUCTURES OF POWER PLANTS Russian patent published in 2000 - IPC

Abstract RU 2156678 C1

FIELD: mechanical engineering; brazing and soldering. SUBSTANCE: proposed invention can be used in making structures containing maraging steel and operating at complex stressed state at temperature range from minus 253 to plus 500 C. First steel article are subjected to preliminary hardening with isothermal holding in process of heating for hardening at temperatures within the internal of AC1+20°;AC1+50°C. Then articles are heated for soldering with isothermal holding at temperature within the interval of AC1+20°;AC1+50°C. Soldering is carried out at temperatures within the interval of AC3+20°;AC3+100°C. Then quenching and tempering (aging) are carried out. EFFECT: improved mechanical properties of soldered structure material at preservation of high structural strength and operation reliability of soldered joints. 2 cl, 1 tbl

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RU 2 156 678 C1

Authors

Semenov V.N.

Novikov V.I.

Dates

2000-09-27—Published

1999-06-02—Filed

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