| 摘要 |
PROBLEM TO BE SOLVED: To provide a repairing method of a turbine rotor, reproducing the turbine wheel a turbine wheel less susceptible to creep damage than before, by cutting off creep-damaged part of the turbine wheel and welding a new member of high Cr steel not susceptible to the creep damage to the cut off part, and a turbine rotor. SOLUTION: After the creep-damaged parts of a hook part of a moving blade implanted part of the turbine wheel and a hook corner part are cut off, the parts are repaired with repairing members having higher Cr component than the turbine wheel by welding, and then the members are machined to fit to the shape of the implanted parts. COPYRIGHT: (C)2005,JPO&NCIPI
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