Turbine blade maintenance method

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11504750
APP PUB NO 20180207689A1
SERIAL NO

15747530

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Abstract

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A cleaning process (blasted-particles cleaning process) includes performing, a plural number of consecutive cycles, an ultrasonic cleaning treatment including immersing a turbine rotor blade in a water basin and conducting an ultrasonic wave into the water basin to clean the turbine rotor blade, and a pressurized-water cleaning treatment including spraying pressurized water into an internal cooling flow channel after the ultrasonic cleaning treatment is performed. The cleaning process is performed after a bonding coat layer removing process of removing a bonding coat layer (first coating layer) by chemical treatment, and a cleaning process of cleaning the turbine blade by blast treatment. Heat tinging process is then performed.

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Patent Owner(s)

Patent OwnerAddress
MITSUBISHI HEAVY INDUSTRIES LTD2-3 MARUNOUCHI 3-CHOME CHIYODA-KU TOKYO 100-8332

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Inoue, Yoshiyuki Kanagawa, JP 57 522
Kawachi, Yosuke Kanagawa, JP 3 6
Takeuchi, Yasushi Kanagawa, JP 113 1569

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