| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a turbine rotor in which a difference in hot rolling elongation in the joint between a turbine rotor high temperature part and a turbine rotor low temperature part can be reduced, and which can be operated with high temperature steam in a class of≥650°C, and to provide a steam turbine. <P>SOLUTION: The turbine rotor 10 is provided at a steam turbine into which high temperature steam heated at≥650°C is introduced, and is composed in such a manner that the divided parts of an anterior shaft 20, an anterior low temperature packing part 21, an anterior high temperature packing part 22, an anterior high temperature moving blade part 23, a posterior low temperature moving blade part 24, a posterior low temperature packing part 25 and a posterior shaft 26 are welded, respectively, so as to be connected. Further, the anterior shaft 20, the anterior low temperature packing part 21, the posterior low temperature moving blade part 24, the posterior low temperature packing part 25 and the posterior shaft 26 are formed of CrMoV steel, and the anterior high temperature packing part 22 and the anterior high temperature moving blade part 23 are formed of an Ni based alloy. <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
