EP 1970142 B1 20110928 - Method for fine casting of metallic parts with narrow channels
Title (en)
Method for fine casting of metallic parts with narrow channels
Title (de)
Verfahren zum Feingießen von metallischen Bauteilen mit dünnen Durchgangskanälen
Title (fr)
Procédé de soudure fine de composants métalliques dotés de canaux de passage fins
Publication
Application
Priority
DE 102007012321 A 20070309
Abstract (en)
[origin: EP1970142A1] Precision casting of metal components with very thin channels, especially turbine blades, comprises forming a wax pattern by pressing wax (7) between two mold shells with ceramic rods (6) in positions corresponding to the desired channels. A ceramic mold is produced for this by immersion and sand-coating. The mold is then baked and the wax simultaneously burnt off. The mold is than used to produce a metal casting. The rods correspond in diameter to those of the channels and have a fusible outer reinforcing sleeve (8).
IPC 8 full level
B22C 7/02 (2006.01); B22C 9/04 (2006.01); B22C 9/10 (2006.01)
CPC (source: EP US)
B22C 7/02 (2013.01 - EP US); B22C 9/04 (2013.01 - EP US); B22C 9/108 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 1970142 A1 20080917; EP 1970142 B1 20110928; DE 102007012321 A1 20080911; US 2008216983 A1 20080911; US 8096343 B2 20120117
DOCDB simple family (application)
EP 08150863 A 20080131; DE 102007012321 A 20070309; US 7362208 A 20080307