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2 162 386

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IPC

(21) (22)

Application

2000106411/02, 2000-03-17

(24)

Start date

2000-03-17

(22)

Actual filing date

2000-03-17

(45)

Published

2001-01-27

(72)

Inventor

Ospennikova O.G.Ol'Khova R.M.Shunkin V.N.Bojtsov P.Ju.Efremov A.A.Serova N.E.

(73)

Holder

Gosudarstvennoe Predprijatie Moskovskoe Mashinostroitel'Noe Proizvodstvennoe Predprijatie

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

Abstract RU 2162386 C1

FIELD: foundry. SUBSTANCE: composition for manufacturing investment patterns used for casting gas turbine engine blades contains at least one of paraffin, brown coal wax, and resin and also 1 to 20% of polyvinyl butyl ether. EFFECT: enabled manufacturing high-accuracy profiled thin-wall patterns with elevated strength and crack resistance. 2 tbl

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RU 2 162 386 C1

Authors

Ospennikova O.G.

Ol'Khova R.M.

Shunkin V.N.

Bojtsov P.Ju.

Efremov A.A.

Serova N.E.

Dates

2001-01-27—Published

2000-03-17—Filed