EP 3852949 A1 20210728 - CASTING CORE FOR CASTING MOULDS AND METHOD FOR THE PRODUCTION OF SAME
Title (en)
CASTING CORE FOR CASTING MOULDS AND METHOD FOR THE PRODUCTION OF SAME
Title (de)
GIESSKERN FÜR GIESSFORMEN SOWIE VERFAHREN ZU DESSEN HERSTELLUNG
Title (fr)
NOYAU DE COULÉE POUR MOULES DE COULÉE ET SON PROCÉDÉ DE FABRICATION
Publication
Application
Priority
- DE 102018215962 A 20180919
- EP 2019075154 W 20190919
Abstract (en)
[origin: WO2020058394A1] The invention relates to a casting core for casting moulds, wherein the casting core comprises a central core and a core shroud arranged around the central core. The core shroud contains or consists of ceramic particles bound to a binder. The central core contains or consists of ceramic particles bound to a binder, wherein the ceramic particles of the central core contain or consist of at least one component, which exhibits, at a temperature in a range from 100 °C to 1500 °C, a thermally induced phase transformation, and/or at least two components, the thermal expansion coefficients of which at 20 °C differ by at least 5 ∙ 10- 6 K-1. The invention further relates to a method for producing the casting core according to the invention and the use of the casting core according to the invention.
IPC 8 full level
B22C 1/00 (2006.01); B22C 1/18 (2006.01); B22C 1/20 (2006.01); B22C 9/10 (2006.01)
CPC (source: EP US)
Citation (search report)
See references of WO 2020058394A1
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)
DE 102018215962 A1 20200319; CN 112996611 A 20210618; CN 112996611 B 20230321; EP 3852949 A1 20210728; US 11813666 B2 20231114; US 2022048100 A1 20220217; WO 2020058394 A1 20200326
DOCDB simple family (application)
DE 102018215962 A 20180919; CN 201980073167 A 20190919; EP 19773052 A 20190919; EP 2019075154 W 20190919; US 201917250870 A 20190919