Title:
鋼板の誘導加熱装置、誘導加熱方法、合金化溶融亜鉛メッキ鋼板の製造方法および鋼板の製造方法
Document Type and Number:
Japanese Patent JP6881384
Kind Code:
B2
Abstract:
To make it possible to suppress a load variation of a power source without switching a capacitance and an inductance when heating while passing a specific type of steel sheet followed by a steel sheet with lower permeability.SOLUTION: The induction heating device is configured to heat a plurality of different types of steel sheets with different magnetic properties by an inductive current generated by a magnetic field generated by applying a high-frequency current to a solenoid coil. When heating a specific type of steel sheet among the plurality of types of steel sheets, impedance is set so that a power factor becomes maximum in an equivalent circuit seen from a power source. At a time of the setting, a ratio (ZR/ZωL) of impedance (ZR) due to electric resistance of the equivalent circuit to impedance (ZωL) due to inductance of the equivalent circuit is set to 0.008 or more.SELECTED DRAWING: Figure 1
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Inventors:
Hino Zendo
Hirokazu Kobayashi
Hirokazu Kobayashi
Application Number:
JP2018077148A
Publication Date:
June 02, 2021
Filing Date:
April 12, 2018
Export Citation:
Assignee:
jfe Steel Corporation
International Classes:
H05B6/10; C21D1/42; C21D9/60
Domestic Patent References:
| JP2002367763A | ||||
| JP9129360A | ||||
| JP7243012A | ||||
| JP11167980A | ||||
| JP7173545A |
Attorney, Agent or Firm:
Ginza Marronnier Patent Office