HIGH-FREQUENCY HARDENING APPARATUS

WIPO Patent Application WO/2021/039090

A1

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 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.

WO/2019/172020	LEADING EDGE COVER MEMBER, LEADING EDGE COVER MEMBER UNIT, COMPOSITE-MATERIAL BLADE, METHOD OF MANUFACTURING LEADING EDGE COVER MEMBER, AND METHOD OF MANUFACTURING COMPOSITE-MATERIAL BLADE
WO/2010/082632	NI-BASED SINGLE CRYSTAL SUPERALLOY
JP2008309333	SEAL ASSEMBLY FOR ROTARY MACHINE

ASAI KUNIO (JP)
SHISHIME KEIKO (JP)
ISHIZAWA SHUICHI (JP)
KUDO TAKESHI (JP)
NAGAI YURIKA (JP)
TANAKA KATSUMI (JP)

PCT/JP2020/025292

March 04, 2021

June 26, 2020

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MITSUBISHI POWER LTD (JP)

F01D25/00; C21D1/10; C21D1/70; C21D9/00; F01D5/28; H05B6/06

JP2011007093A	2011-01-13
JP2005307307A	2005-11-04
JP2005226539A	2005-08-25
JPS6310431U	1988-01-23
JPH08291983A	1996-11-05
JP2011063831A	2011-03-31
US20150251250A1	2015-09-10

MATSUNUMA Yasushi et al. (JP)

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