Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Masafumi Fukuda0
Takahiro Kubo0
Date of Patent
May 24, 2011
Patent Application Number
11626590
Date Filed
January 24, 2007
Patent Citations Received
Patent Primary Examiner
Patent abstract
A turbine rotor 10 is disposed in a steam turbine, into which high-temperature steam of 650° C. or more is introduced, and separately configured of the portion made of the Ni-base alloy and the portion made of the CrMoV steel depending on a steam temperature and a metal temperature, and the individual portions having a small difference in coefficient of linear expansion are welded mutually.
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