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(19)

(11)

2 472 600

(13)

(51)

IPC

B22C15/28(2006-01-01)

(21) (22)

Application

2011120718/02, 2011-05-24

(24)

Start date

2011-05-24

(22)

Actual filing date

2011-05-24

(45)

Published

2013-01-20

(72)

Inventor

Bekh Nikolaj IvanovichVolkomich Anatolij AleksandrovichLutts Rudol'F Rudol'Fovich

(73)

Holder

Zakrytoe Aktsionernoe Obshchestvo

METHOD OF PRODUCING MOULDS AND DEVICE TO THIS END Russian patent published in 2013 - IPC B22C15/28

Abstract RU 2472600 C1

FIELD: process engineering.

SUBSTANCE: invention relates to metallurgy. Proposed method comprises filling flask 8 and sand frame with patterns arranged therein with sand blend, compacting said blend by compressed air pulses, additional compaction, and stripping of patters from half-moulds. Additional compaction is performed by pattern plate 18 by displacing it inside sand frame 7 built in working table 4 and located above flask 8 toward press grate whereto applied is counter pressure corresponding to preset half-mould compaction level.

EFFECT: optimum distribution of compaction, higher accuracy, decreased deficiency of castings.

8 cl, 3 dwg

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RU 2 472 600 C1

Authors

Bekh Nikolaj Ivanovich

Volkomich Anatolij Aleksandrovich

Lutts Rudol'F Rudol'Fovich

Dates

2013-01-20—Published

2011-05-24—Filed