Global Patent Index - EP 2307158 A2

EP 2307158 A2 20110413 - SALT-BASED CORES AND METHOD FOR THE PRODUCTION THEREOF

Title (en)

SALT-BASED CORES AND METHOD FOR THE PRODUCTION THEREOF

Title (de)

KERNE AUF DER BASIS VON SALZ UND VERFAHREN ZU IHRER HERSTELLUNG

Title (fr)

NOYAUX À BASE DE SEL ET PROCÉDÉ DE FABRICATION DESDITS NOYAUX

Publication

EP 2307158 A2 20110413 (DE)

Application

EP 09780844 A 20090720

Priority

  • EP 2009059317 W 20090720
  • DE 102008040541 A 20080718

Abstract (en)

[origin: WO2010007180A2] Cores that are inserted into the die when diecasting workpieces from metal, in order to maintain the cavities that are intended in the workpieces when the moulds are filled with the molten metal, have to meet high requirements with regard to their dimensional stability and the ease with which they can be removed from the cavities.  It is therefore proposed according to the invention that the core material is completely soluble in water and can be removed from the workpieces by water without leaving any residue and that the cores made from salts in a non-liquid form and the additional materials can be produced by the core shooting process using pressures, adjusted appropriately for the composition of the core material to act on the respective material with which said cores are surrounded.

IPC 8 full level

B22C 9/10 (2006.01)

CPC (source: EP)

B22C 9/105 (2013.01)

Citation (search report)

See references of WO 2010007180A2

Designated contracting state (EPC)

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 SE SI SK SM TR

Designated extension state (EPC)

AL BA RS

DOCDB simple family (publication)

WO 2010007180 A2 20100121; WO 2010007180 A3 20100617; BR PI0915997 A2 20190409; CN 102159342 A 20110817; EP 2307158 A2 20110413; MX 2011000528 A 20111014; RU 2011105861 A 20120827; RU 2551335 C2 20150520

DOCDB simple family (application)

EP 2009059317 W 20090720; BR PI0915997 A 20090720; CN 200980136389 A 20090720; EP 09780844 A 20090720; MX 2011000528 A 20090720; RU 2011105861 A 20090720