EP 3320999 B1 20191113 - PRODUCTION METHOD WITH A VACUUM SAND MOULD
Title (en)
PRODUCTION METHOD WITH A VACUUM SAND MOULD
Title (de)
FERTIGUNGSVERFAHREN MIT EINER VAKUUM-SANDGUSSFORM
Title (fr)
PROCÉDÉ DE FABRICATION À L'AIDE D'UN MOULE DE COULÉE AU SABLE SOUS VIDE
Publication
Application
Priority
EP 16198875 A 20161115
Abstract (en)
[origin: US2018133783A1] A production method for producing cast parts from metal using a sand casting mould (1). The sand casting mould (1) is produced in this case in a moulding box (2) by means of a negative-pressure moulding method. According to the invention, the sand casting mould (1), which is under negative pressure, in the moulding box (2) is first of all filled with molten metal (5). The moulding box (2) with the sand casting mould (1), which is under negative pressure therein, is then completely or partially impinged upon by a cooling fluid (4) and after, at the same time as, or before the cooling fluid impingement is opened at places with cooling fluid impingement. As a result of this, cooling fluid (4) is sucked into the sand casting mould (1) which is under negative pressure, as a result of which the solidifying cast part (3) is quenched more quickly.
IPC 8 full level
B22D 18/04 (2006.01); B22D 30/00 (2006.01)
CPC (source: CN EP US)
B22C 7/023 (2013.01 - EP US); B22C 9/03 (2013.01 - EP US); B22C 9/046 (2013.01 - EP US); B22C 9/065 (2013.01 - EP US); B22D 18/04 (2013.01 - EP US); B22D 18/06 (2013.01 - CN); B22D 27/04 (2013.01 - CN); B22D 27/15 (2013.01 - EP US); B22D 30/00 (2013.01 - EP US)
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)
EP 3320999 A1 20180516; EP 3320999 B1 20191113; CN 108067607 A 20180525; CN 108067607 B 20210622; JP 2018079509 A 20180524; JP 7033891 B2 20220311; US 10464123 B2 20191105; US 2018133783 A1 20180517
DOCDB simple family (application)
EP 16198875 A 20161115; CN 201711129503 A 20171115; JP 2017219133 A 20171114; US 201715812495 A 20171114