Gas turbine blade repair method

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 12104500
APP PUB NO 20220243592A1
SERIAL NO

17612060

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Abstract

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A repair method for a gas turbine blade. The repair method include: a step of removing a thermal barrier coating to expose at least part of a base material of the gas turbine blade; a first etching step of etching the exposed base material; and a first identification step of identifying a base material deterioration layer that is harder than the base material from the etched base material. The repair method further includes a first removal step of removing the identified base material deterioration layer if the base material deterioration layer is identified in the first identification step; and a step of applying a thermal barrier coating to the exposed base material. The thermal barrier applying step is performed after it is determined that there is no base material deterioration layer in the first identification step, or after the base material deterioration layer is removed in the first removal step.

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Patent Owner(s)

Patent OwnerAddress
MITSUBISHI HEAVY INDUSTRIES LTDTOKYO TOKYO METROPOLIS

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Date, Yasuki Yokohama, JP 1 1
Ishida, Masaharu Yokohama, JP 16 131
Kawachi, Yosuke Yokohama, JP 3 6
Kimura, Ryosuke Yokohama, JP 14 37
Namba, Katsumi Tokyo, JP 6 72
Okayasu, Rin Yokohama, JP 1 1
Yamada, Masahiro Tokyo, JP 409 3595

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