Steam turbine rotor blade, method for manufacturing steam turbine rotor blade, and steam turbine

One steam turbine rotor blade for forming a rotor blade row in a steam turbine is equipped with a rotor blade main body having: a blade part; a blade root part provided at one end of the blade part; a first connecting part provided at the other end of the blade part and having a first opposing surfa...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	ENOMOTO YUKI, OKIMORI YUTA, TABATA SOICHIRO, TOCHITANI NAOTO, IMAI SHUNJI, ASAKA HARUHIKO, OKAYA NAOTOSHI, KURIMURA TAKAYUKI
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	BLASTING CHEMICAL SURFACE TREATMENT CHEMISTRY COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING MATERIAL WITH METALLIC MATERIAL COATING METALLIC MATERIAL DIFFUSION TREATMENT OF METALLIC MATERIAL ENGINE PLANTS IN GENERAL HEATING INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL LIGHTING MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING METALLURGY NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES STEAM ENGINES SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION WEAPONS
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	One steam turbine rotor blade for forming a rotor blade row in a steam turbine is equipped with a rotor blade main body having: a blade part; a blade root part provided at one end of the blade part; a first connecting part provided at the other end of the blade part and having a first opposing surface; and a second connecting part provided in the middle of the blade part and having a second opposing surface. The first opposing surface and the second opposing surface are formed so as to be arranged opposing the respective first opposing surface and second opposing surface of the other rotor blade main bodies adjacently arranged in the rotor blade row. Furthermore, the surface of at least one of the opposing surfaces of the steam turbine rotor blade, that is, the first opposing surface or the second opposing surface, is provided with a cover layer comprising a Co-based alloy of a single-composition formed by high-speed flame spraying, wherein the cover layer is formed on that surface while a diffusion layer hav