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2 126 308

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IPC

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Application

98101354/02, 1998-01-23

(22)

Actual filing date

1998-01-23

(45)

Published

1999-02-20

(72)

Inventor

Folomejkin Ju.I.Svetlov I.L.Kablov E.N.Demonis I.M.

(73)

Holder

Gosudarstvennoe Predprijatie Vserossijskij Nauchno-Issledovatel'Skij Institut Aviatsionnykh Materialov

METHOD FOR MAKING BUILTUP CERAMIC CORE FOR CASTING HOLLOW PRODUCTS Russian patent published in 1999 - IPC

Abstract RU 2126308 C1

FIELD: foundry, possibly casting hollow product such as turbine blades. SUBSTANCE: method comprises steps of making main core by pressing ceramic mass and subjecting it to high temperature annealing; forging or rolling additional core in the form of flat blank with surface relief; shaping blank according to contour of main core; joining cores and subjecting them to high temperature annealing. EFFECT: reduced number of rejected cores due to enhanced accuracy of their geometry, less loss of yield. 4 dwg

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RU 2 126 308 C1

Authors

Folomejkin Ju.I.

Svetlov I.L.

Kablov E.N.

Demonis I.M.

Dates

1999-02-20—Published

1998-01-23—Filed

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