EP 3041623 B1 20170607 - METHOD FOR REMOVING A CAST PART CAST FROM A LIGHT METAL MELT FROM A CASTING MOULD
Title (en)
METHOD FOR REMOVING A CAST PART CAST FROM A LIGHT METAL MELT FROM A CASTING MOULD
Title (de)
VERFAHREN ZUM ENTFORMEN EINES AUS LEICHTMETALLSCHMELZE GEGOSSENEN GUSSTEILS AUS EINER GIESSFORM
Title (fr)
PROCÉDÉ PERMETTANT DE DÉMOULER D'UN MOULE UNE PIÈCE MOULÉE À PARTIR D'UN MÉTAL LÉGER FONDU
Publication
Application
Priority
EP 2013068277 W 20130904
Abstract (en)
[origin: WO2015032427A1] The invention relates to a method for removing a cast part (M) cast from a light metal melt from a casting mould (1) comprising at least one casting core (2-7, 17, 18a-21b, 30) which, in the cast part (M), represents a passage opening (Z1-Z3) connecting two outer sides of the cast part and is produced from a moulding material which is bound by means of a binder which decomposes under the action of heat, wherein, for removing the cast part from the mould, the casting mould (1) is subjected to a heat treatment in a furnace (O), during which it is heated to a temperature at which the binder loses its binding action. In order to increase the efficiency of this method, the invention proposes flushing a passage (D1-D4) formed in the casting core (18a-21b), which represents the passage opening, of the casting mould (1) with hot gas (H) in the furnace (O), the temperature of said hot gas corresponding at least to the temperature at which the binder of the moulding material loses its binding action, such that the casting core (18a-21b) which represents the passage opening (Z1-Z3) decomposes to form fragments (B) or individual sand particles as a consequence of the action of the hot gas.
IPC 8 full level
B22D 29/00 (2006.01)
CPC (source: EP KR RU US)
B22D 21/007 (2013.01 - EP US); B22D 25/02 (2013.01 - EP US); B22D 27/04 (2013.01 - EP US); B22D 29/003 (2013.01 - EP KR US); B22D 33/00 (2013.01 - KR); C21D 1/26 (2013.01 - EP US); C21D 9/0068 (2013.01 - EP US); C22F 1/04 (2013.01 - EP KR US); B22D 29/00 (2013.01 - RU)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
WO 2015032427 A1 20150312; BR 112016004221 B1 20190611; CN 105705274 A 20160622; CN 105705274 B 20170725; EP 3041623 A1 20160713; EP 3041623 B1 20170607; ES 2634319 T3 20170927; JP 2016530101 A 20160929; JP 6126746 B2 20170510; KR 101759268 B1 20170718; KR 20160047514 A 20160502; MX 2016002776 A 20160803; MX 370862 B 20200108; RU 2016112524 A 20171009; RU 2635598 C2 20171114; US 2016193655 A1 20160707; US 9895745 B2 20180220
DOCDB simple family (application)
EP 2013068277 W 20130904; BR 112016004221 A 20130904; CN 201380079379 A 20130904; EP 13756497 A 20130904; ES 13756497 T 20130904; JP 2016529434 A 20130904; KR 20167007584 A 20130904; MX 2016002776 A 20130904; RU 2016112524 A 20130904; US 201314916374 A 20130904