| 摘要 |
PROBLEM TO BE SOLVED: To perform efficient work for applying a coating of a heat insulating film to the inner face of the tail cylinder of a gas turbine without causing the fouling of air outlets or functional troubles. SOLUTION: The method of forming the heat insulating film 40 on the inner face of the tail cylinder 10 of the gas turbine comprises a step (a) of filling a number of air outlets 18 opening to the inner face of the tail cylinder 10 with a filling tap 50 of a heat resistant material, a step (b) of applying a coating of the heat insulating film 40 to the inner face of the tail cylinder 10 with plasma spray coating, and a step (c) of removing the filling tap 50.
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