High-frequency hardening apparatus

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12200846
APP PUB NO 20220159791A1
SERIAL NO

17433325

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Abstract

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This high-frequency hardening apparatus is provided with: an induction heating coil which has a U-shaped part that sandwiches a turbine blade, a pair of linear parts, and a connection part connecting the U-shaped part and the linear parts; a temperature detection unit which detects, in a non-contact manner, temperature around the induction heating coil; a moving mechanism which relatively moves the turbine blade and the induction heating coil in the direction of blade height; an electrical current supply unit which supplies a high-frequency electrical current to the induction heating coil; and a control device which has an electrical current control unit that, on the basis of a detection value provided by the temperature detection unit, controls the magnitude of the high-frequency electrical current supplied from the electrical current supply unit such that the detection value will not exceed a predetermined temperature.

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Patent Owner(s)

Patent OwnerAddress
MITSUBISHI HEAVY INDUSTRIES LTD2-3 MARUNOUCHI 3-CHOME CHIYODA-KU TOKYO 1008332 ?1008332

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Asai, Kunio Tokyo, JP 16 87
Ishizawa, Shuichi Tokyo, JP 10 18
Kudo, Takeshi Yokohama, JP 66 1235
Nagai, Yurika Yokohama, JP 2 0
Shishime, Keiko Tokyo, JP 3 16
Tanaka, Katsumi Yokohama, JP 85 1182

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