TURBINE MOVABLE VANE MADE OF TI ALLOY

PURPOSE:To prevent the generation of minute cracks by melting the surface of the projecting part formed at the center part of a movable vane and adding the alloy elements and forming a hardened layer through the heat treatment after cooling. CONSTITUTION:Projecting parts 3a and 3b are formed at the...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	NAKASAKI TAKAMITSU, ONODA TAKESHI, UEHARA TAKEO
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING ENGINE PLANTS IN GENERAL HEATING LIGHTING MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES STEAM ENGINES WEAPONS
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	PURPOSE:To prevent the generation of minute cracks by melting the surface of the projecting part formed at the center part of a movable vane and adding the alloy elements and forming a hardened layer through the heat treatment after cooling. CONSTITUTION:Projecting parts 3a and 3b are formed at the center part of a turbine movable vane 2. A metal foil 5 is installed onto the surface of the projecting part 3a, 3b, and melted by electron beam 6. After the keeping at about 500 deg.C for 5hr, the part is cooled to form a hardened layer. Therefore, the hardness of the contact surface is increased, and the generation of minute cracks due to the fretting corrosion, fretting fatigue, etc. can be prevented.