EP 0126550 A1 19841128 - Casting articles by directional solidification.
Title (en)
Casting articles by directional solidification.
Title (de)
Gegossene Gegenstände mit gerichteter Erstarrung.
Title (fr)
Articles coulés par solidification dirigée.
Publication
Application
Priority
GB 8310852 A 19830421
Abstract (en)
A method for moulding an article, for example a turbine blade, which is made up of one or more directionally solidified crystals of metal. A mould (21) is produced having a series of bores (32 to 38) in which seed crystals (42 to 48) are located, the seed crystals having previsously been calibrated to determine the angle and direction of inclination of their 100 planes. The seed crystals are arranged so that the orientation of the 100 planes coincide with that desired in the article relative to the geometry of the article and the mould is located on the chill plate (19). Molten alloy is then admitted to the mould cavity and directional solidification takes place with the result that crystals (13 to 18) solidify from the seed crystals having the same crystallographic orientation.
IPC 1-7
IPC 8 full level
B22D 27/04 (2006.01); C30B 11/14 (2006.01); C30B 21/02 (2006.01)
CPC (source: EP)
B22D 27/045 (2013.01)
Citation (search report)
- [A] GB 2030233 A 19800402 - ROLLS ROYCE
- [A] DE 2909844 A1 19790927 - REMET CORP
- [A] EP 0034021 A1 19810819 - TRW INC [US]
- [A] EP 0059549 B1 19870616
Designated contracting state (EPC)
DE FR GB IT SE
DOCDB simple family (publication)
EP 0126550 A1 19841128; GB 8310852 D0 19830525; JP S59207894 A 19841126
DOCDB simple family (application)
EP 84302679 A 19840419; GB 8310852 A 19830421; JP 7881884 A 19840420