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2 547 071

(13)

(51)

IPC

B22C9/04(2006-01-01)

(21) (22)

Application

2013147232/02, 2013-10-22

(24)

Start date

2013-10-22

(22)

Actual filing date

2013-10-22

(45)

Published

2015-04-10

(72)

Inventor

Leushin Igor' OlegovichLeushina Ljubov' IgorevnaGrachev Aleksandr Nikolaevich

(73)

Holder

Federal'Noe Gosudarstvennoe Bjudzhetnoe Obrazovatel'Noe Uchrezhdenie Vysshego Professional'Nogo Obrazovanija Gosudarstvennyj Tekhnicheskij Universitet Im. R.E. Alekseeva", Ngtu

METHOD TO MAKE CERAMIC SHELLS FOR CASTING ON REMOVED MODELS Russian patent published in 2015 - IPC B22C9/04

Abstract RU 2547071 C1

FIELD: technological processes.

SUBSTANCE: invention relates to foundry. A model block is coated with a ceramic suspension in layers with subsequent sprinkling with a heat resistant material and drying of each layer. Sprinkling material is ground crushed ceramic shells containing quartz in phases of tridymite and cristobalite, iron and iron scale.

EFFECT: invention provides for improved crack resistance and strength of ceramic shells.

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RU 2 547 071 C1

Authors

Leushin Igor' Olegovich

Leushina Ljubov' Igorevna

Grachev Aleksandr Nikolaevich

Dates

2015-04-10—Published

2013-10-22—Filed