EP 0491075 B1 19950705 - Method for producing a turbine blade made of titanium based alloy.
Title (en)
Method for producing a turbine blade made of titanium based alloy.
Title (de)
Verfahren zur Herstellung einer Turbinenschaufel aus einer Titan-Basislegierung.
Title (fr)
Procédé de préparation d'une aube de turbine en alliage à base de titane.
Publication
Application
Priority
EP 90124757 A 19901219
Abstract (en)
[origin: EP0491075A1] The turbine blade (2), which is preferably used in the low-pressure stage of a steam turbine, is formed from a titanium based alloy. In the region of the blade tip, it has a section surrounding the blade inlet edge (10) with a surface consisting of a material which is more resistant to erosion than the titanium based alloy. This turbine blade (2) is intended to be easy to produce and to be distinguished by a long life even under relatively severe operating conditions. This is achieved in that the section surrounding the blade inlet edge (11) has a protective layer formed by surface treatment of the titanium based alloy with a high-power energy source such as, in particular, a laser (5). <IMAGE>
IPC 1-7
IPC 8 full level
C23C 8/08 (2006.01); C23C 8/20 (2006.01); C23C 8/24 (2006.01); F01D 5/28 (2006.01)
CPC (source: EP US)
C23C 8/24 (2013.01 - EP US); F01D 5/28 (2013.01 - EP US); F01D 5/288 (2013.01 - EP US)
Designated contracting state (EPC)
CH DE ES FR GB IT LI
DOCDB simple family (publication)
EP 0491075 A1 19920624; EP 0491075 B1 19950705; CN 1024703 C 19940525; CN 1062577 A 19920708; CS 384391 A3 19920812; CZ 282365 B6 19970716; DE 59009381 D1 19950810; ES 2075874 T3 19951016; JP 3217414 B2 20011009; JP H05186861 A 19930727; RU 2033526 C1 19950420; US 5366345 A 19941122
DOCDB simple family (application)
EP 90124757 A 19901219; CN 91111855 A 19911219; CS 384391 A 19911217; DE 59009381 T 19901219; ES 90124757 T 19901219; JP 33711491 A 19911219; SU 5010399 A 19911218; US 80232091 A 19911204