EP 1375031 B1 20060628 - Method and device for hardening foundry cores
Title (en)
Method and device for hardening foundry cores
Title (de)
Verfahren und Einrichtung zum Aushärten von Giesserei-Kernen
Title (fr)
Procédé et dispositif pour durcir des noyaux de fonderie
Publication
Application
Priority
CH 10342002 A 20020617
Abstract (en)
[origin: EP1375031A1] During core injection, an amine is dosed in the fluid state to a heating and mixing stage, to vaporize it. The gasification plate is connected, gas-tight. Hot compressed air is introduced over a given interval with proportional pressure increase. It is passed through the heating and mixing stage, which is loaded with the amine vapor. It continues as a catalyst vapor/carrier gas mixture through the sand-containing molding material in the core mold. A set interval of flushing follows, using hot compressed air. This is introduced through a separate supply line, passing it through the core mold and its contents. An Independent claim is included for corresponding apparatus.
IPC 8 full level
B22C 9/12 (2006.01)
CPC (source: EP US)
B22C 9/123 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR
DOCDB simple family (publication)
EP 1375031 A1 20040102; EP 1375031 B1 20060628; AT E331576 T1 20060715; CH 695547 A5 20060630; CN 1283389 C 20061108; CN 1606478 A 20050413; DE 50207380 D1 20060810; ES 2267924 T3 20070316; US 2005077023 A1 20050414; US 7036552 B2 20060502; WO 03106072 A1 20031224
DOCDB simple family (application)
EP 02024017 A 20021028; AT 02024017 T 20021028; CH 0300368 W 20030611; CH 10342002 A 20020617; CN 03801782 A 20030611; DE 50207380 T 20021028; ES 02024017 T 20021028; US 49867604 A 20040610