EP 2463044 A1 20120613 - Modular ceramic casting core and casting method
Title (en)
Modular ceramic casting core and casting method
Title (de)
Modularer keramischer Gusskern und Gussverfahren
Title (fr)
Noyau de fonderie en céramique modulaire et procédé de coulée
Publication
Application
Priority
EP 10194298 A 20101209
Abstract (en)
The ceramic casting core (4) comprises two separate parts (5, 6), which are assembled into one part. The casting core has a high aspect ratio and a longitudinal direction, which represents the longest extent of the aspect ratio. The parts of the core are joined together in a plane, in which the longitudinal direction runs. The plane is as large as possible. The parts comprise elevations and complementarily shaped depressions located into separating surfaces (22, 22') between the parts, where the elevations and depressions intervene into each other in the assembled state. The ceramic casting core (4) comprises two separate parts (5, 6), which are assembled into one part. The casting core has a high aspect ratio and a longitudinal direction, which represents the longest extent of the aspect ratio. The parts of the core are joined together in a plane, in which the longitudinal direction runs. The plane is as large as possible. The parts comprise: elevations and complementarily shaped depressions located into separating surfaces (22, 22') between the parts, where the elevations and depressions intervene into each other in the assembled state; and a gap arranged between the parts in the assembled state, where the longitudinal direction runs in the gap. An inner partition wall of a cast component results during the casting. A part of the elevations and a part of the depressions comprise spacers, which engage with each other in the assembled state. The gap and/or the separating surfaces parallely extend between the parts to a tangent of an outer surface of the core for a turbine blade, where no gap is formed between the separate parts. The gap or separating surfaces lie in a plane, on which the longitudinal direction is vertical. An independent claim is included for a method of casting a turbine blade.
Abstract (de)
Der vorgeschlagene keramische Gusskern weist im Unterschied zum Stand der Technik zwei Teile (5, 6) auf, um die Teile(5, 6) separat herstellen zu können, damit diese besser und filigraner hergestellt werden können.
IPC 8 full level
B22C 9/10 (2006.01)
CPC (source: EP)
B22C 9/103 (2013.01)
Citation (applicant)
- EP 1204776 B1 20040602 - SIEMENS AG [DE], et al
- EP 1306454 A1 20030502 - SIEMENS AG [DE]
- EP 1319729 A1 20030618 - SIEMENS AG [DE]
- WO 9967435 A1 19991229 - SIEMENS AG [DE], et al
- WO 0044949 A1 20000803 - SIEMENS AG [DE], et al
- US 6024792 A 20000215 - KURZ WILFRIED [CH], et al
- EP 0892090 A1 19990120 - SULZER INNOTEC AG [CH]
- EP 0486489 B1 19941102 - SIEMENS AG [DE]
- EP 0786017 B1 19990324 - SIEMENS AG [DE]
- EP 0412397 B1 19980325 - SIEMENS AG [DE]
Citation (search report)
- [XI] WO 0032331 A1 20000608 - HOWMET RES CORP [US]
- [X] EP 1543896 A2 20050622 - UNITED TECHNOLOGIES CORP [US]
- [X] EP 1306147 A1 20030502 - UNITED TECHNOLOGIES CORP [US]
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)
DOCDB simple family (application)
EP 10194298 A 20101209