The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 01, 2024
Filed:
Apr. 20, 2020
Mitsubishi Power, Ltd., Kanagawa, JP;
Katsumi Namba, Tokyo, JP;
Masahiro Yamada, Tokyo, JP;
Masaharu Ishida, Yokohama, JP;
Ryosuke Kimura, Yokohama, JP;
Rin Okayasu, Yokohama, JP;
Yosuke Kawachi, Yokohama, JP;
Yasuki Date, Yokohama, JP;
MITSUBISHI HEAVY INDUSTRIES, LTD., Tokyo, JP;
Abstract
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.