HIGH-FREQUENCY HEAT TREATMENT EQUIPMENT

WIPO Patent Application WO/2019/044763

A1

The present invention comprises one high-frequency power source 2, a first adjusting plate 3 and a second adjusting plate 4, a power supply destination switch 5, a first line 10 having first and second quenching devices 11, 14, and a second line 20 having a first quenching device 21. Heating units 12, 22, which are respectively provided to the first quenching devices 11, 21 of the two lines 10, 20, are electrically connected to the high-frequency power source 2 via a first current supply destination switch 6, the first adjusting plate 3, and the power supply destination switch 5, which switch the supply destination of a resonance current generated by the first adjusting plate 3 between the heating units 12, 22. A heating unit 15, which is provided to the second quenching device 14 of the first line 10, is electrically connected to the high-frequency power source via the second adjusting plate 4 and the power supply destination switch 5. Each of the high-frequency power source 2, the first adjusting plate 3, the second adjusting plate 4, the power supply destination switch 5, and the first current supply destination switch 6 is electrically connected to a control device 8 that outputs control signals.

MANO YOSHIYA (JP)
SUZUKI SHINTARO (JP)

PCT/JP2018/031566

March 07, 2019

August 27, 2018

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NTN TOYO BEARING CO LTD (JP)

C21D1/10; C21D9/00; H05B6/10

JP2001226717A	2001-08-21
JP2004169133A	2004-06-17
JPH1121620A	1999-01-26
EP2957530A1	2015-12-23

SHIROMURA Kunihiko et al. (JP)

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