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(11)

2 696 788

(13)

(51)

IPC

B22C9/04(2006-01-01)

(21) (22)

Application

2018137610, 2018-10-24

(24)

Start date

2018-10-24

(22)

Actual filing date

2018-10-24

(45)

Published

2019-08-06

(72)

Inventor

Evstigneev Aleksej IvanovichDmitriev Eduard AnatolevichOdinokov Valerij IvanovichSviridov Andrej Vladimirovich

(73)

Holder

Federalnoe Gosudarstvennoe Byudzhetnoe Obrazovatelnoe Uchrezhdenie Vysshego Obrazovaniya Gosudarstvennyj Universitet" Vo

CAST MULTILAYER SHELL MOLD Russian patent published in 2019 - IPC B22C9/04

Abstract RU 2696788 C1

FIELD: foundry.

SUBSTANCE: invention relates to foundry and can be used for investment casting. Shell mold comprises thin-wall external, facing and intermediate layers. Intermediate layers adjacent to facing layer and intermediate layers adjoining outer layer have porous structure, wherein density of said intermediate layers adjoining facing and outer layers is less than density of outer, facing and other intermediate layers.

EFFECT: enabling increase in the shell mold crack resistance.

1 cl

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RU 2 696 788 C1

Authors

Evstigneev Aleksej Ivanovich

Dmitriev Eduard Anatolevich

Odinokov Valerij Ivanovich

Sviridov Andrej Vladimirovich

Dates

2019-08-06—Published

2018-10-24—Filed