EP 2650062 A3 20171011 - Composite core for casting processes, and processes of making and using same
Title (en)
Composite core for casting processes, and processes of making and using same
Title (de)
Verbundkern für Gießverfahren, sowie Verfahren zur Herstellung und Verwendung davon
Title (fr)
Noyau composite pour procédés de moulage et procédés de fabrication et d'utilisation associés
Publication
Application
Priority
US 201213442130 A 20120409
Abstract (en)
[origin: EP2650062A2] A composite ceramic core (12) that, in combination with a shell mold (22), is suitable for use in a casting process to produce metal alloy components. The core (12) and casting process make use of a highly leachable interior layer (14) in combination with an exterior layer (16) that is less reactive than the interior layer (14) in the presence of common alloying elements. The interior layer (14) contains at least one hollow channel that allows a point of entry for a leaching solution, as well as exit for gaseous byproducts generated during the casting process.
IPC 8 full level
B22C 9/10 (2006.01); B22C 9/04 (2006.01); B22C 9/24 (2006.01)
CPC (source: EP US)
B22C 9/04 (2013.01 - EP US); B22C 9/10 (2013.01 - EP US); B22C 9/24 (2013.01 - EP US); B22D 25/02 (2013.01 - US)
Citation (search report)
- [Y] WO 0112361 A2 20010222 - HOWMET RES CORP [US]
- [Y] EP 0001434 A1 19790418 - GEN ELECTRIC [US]
- [Y] JP S55114457 A 19800903 - HITACHI LTD
- [A] WO 2012003439 A1 20120105 - MIKRO SYSTEMS INC [US], et al
- [A] US 5394933 A 19950307 - TAKAYANAGI TAKESHI [JP]
- [A] US 5394932 A 19950307 - CAROZZA EUGENE J [US], et al
- [AD] US 3824113 A 19740716 - LOXLEY T, et al
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
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 2650062 A2 20131016; EP 2650062 A3 20171011; JP 2013215805 A 20131024; RU 2013115842 A 20141020; US 2016175923 A1 20160623
DOCDB simple family (application)
EP 13162368 A 20130404; JP 2013078154 A 20130404; RU 2013115842 A 20130409; US 201213442130 A 20120409