REPAIRING METHO FOR TURBINE PART, PRE-TREATING METHO FOR HF CLEANING, AND TURBINE BLADE

摘要

PROBLEM TO BE SOLVED: To perform proper repairing work. SOLUTION: Nickel plating is applied to the serration part 4 of a dynamic blade 10, and then HF cleaning is performed to remove scale oxide on the dynamic blade surface. Successively brazing repair is applied to the crack in a profile part 1, and heat treatment is made, thereby diffusing an Ni coat 5 into the base material of the blade 10.