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2 177 387

(13)

(51)

IPC

(21) (22)

Application

2000113754/02, 2000-05-31

(24)

Start date

2000-05-31

(22)

Actual filing date

2000-05-31

(45)

Published

2001-12-27

(72)

Inventor

Eliseev Ju.S.Poklad V.A.Ospennikova O.G.Shunkin V.N.Khajchenko V.E.

(73)

Holder

Federal'Noe Gosudarstvennoe Unitarnoe Predprijatie Mashinostroitel'Noe Proizvodstvennoe Predprijatie

COMPOSITION FOR MANUFACTURING MELTED PATTERNS Russian patent published in 2001 - IPC

Abstract RU 2177387 C1

FIELD: foundry. SUBSTANCE: composition contains solid hydrocarbon and/or wax in amounts 0.1 to 70 wt % and/or copolymer with melting point up to 300 C in amounts up to 100 wt %. Presence of petroleum polymer resin allows strength and crack growth resistance to be increased. Patterns of invention can be used for molding of gas-turbine engine blades. EFFECT: increased geometric accuracy and strength of patterns due to lower dropping temperature of resin and thereby higher workability. 2 tbl

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RU 2 177 387 C1

Authors

Eliseev Ju.S.

Poklad V.A.

Ospennikova O.G.

Shunkin V.N.

Khajchenko V.E.

Dates

2001-12-27—Published

2000-05-31—Filed