EP 2576100 A1 20130410 - INFILTRATE-STABILIZED SALT CORES
Title (en)
INFILTRATE-STABILIZED SALT CORES
Title (de)
INFILTRAT-STABILISIERTE SALZKERNE
Title (fr)
NOYAUX DE SEL STABILISÉS PAR UN INFILTRAT
Publication
Application
Priority
- DE 102010029656 A 20100602
- EP 2011059153 W 20110601
Abstract (en)
[origin: WO2011151420A1] Cores that are inserted into the mold when die-casting workpieces from metal in order to maintain the cavities that are provided in the workpieces when the molds are filled with the melt have to meet high requirements with regard to the dimensional, mechanical, and thermal stability of said cores as well as the ease with which said cores can be removed from the cavities. According to the invention, salt-based cores are therefore provided which can be produced by molding and compressing a core material mixture consisting of at least one salt, at least one binder, and if necessary auxiliaries such as additives, wetting agents, and catalysts. The salt, binder, and auxiliaries that are used if necessary are inorganic. Said core materials can be dissolved with water as a solvent. The parts are molded and compressed by core shooting or pressing, and the compressed cores are stabilized by an infiltrate.
IPC 8 full level
B22C 9/10 (2006.01); B29C 33/30 (2006.01); B29C 33/52 (2006.01); B29C 33/76 (2006.01); B29C 45/44 (2006.01)
CPC (source: EP US)
B22C 9/105 (2013.01 - EP US); B29C 33/52 (2013.01 - EP US); B29C 45/4457 (2013.01 - EP US); C08K 3/34 (2013.01 - US)
Citation (search report)
See references of WO 2011151420A1
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)
DE 102011076905 A1 20111208; BR 112012030752 A2 20161108; EP 2576100 A1 20130410; MX 2012013912 A 20130403; MX 339426 B 20160525; US 2013068129 A1 20130321; WO 2011151420 A1 20111208
DOCDB simple family (application)
DE 102011076905 A 20110601; BR 112012030752 A 20110601; EP 11726376 A 20110601; EP 2011059153 W 20110601; MX 2012013912 A 20110601; US 201113700397 A 20110601