Title:
鋼材の熱処理方法および熱処理装置
Document Type and Number:
Japanese Patent JP4444162
Kind Code:
B2
Abstract:
To provide a steel component having a heat-treated hardened layer of the thickness of <300 μm on an outer surface without any thermal deformation even with a thin steel material or a steel material of the small diameter.
A steel material is brought close to an induction heating means with the waves of ultrahigh frequency of 1-4 MHz supplied thereto at the output of 2-15 kW. The surface of the steel material is heated while moving at least one of the steel material and the induction heating means, and the surface of the steel material immediately after the heating is quenched for heat treatment. A hardened layer of the thickness of ≥50 μm and <300 μm is formed on the surface of the steel.
COPYRIGHT: (C)2007,JPO&INPIT
Inventors:
Koji Yatsushiro
Seiji Shimizu
Daisuke Suzuki
Yoshio Sugita
Motoki Saito
Fumihiko Takeda
Kubota Katsuhiko
Katsuo Odagiri
Seiji Shimizu
Daisuke Suzuki
Yoshio Sugita
Motoki Saito
Fumihiko Takeda
Kubota Katsuhiko
Katsuo Odagiri
Application Number:
JP2005149471A
Publication Date:
March 31, 2010
Filing Date:
May 23, 2005
Export Citation:
Assignee:
Yamanashi Prefecture
Wyeth Electronics Co., Ltd.
Asakawa Heat Treatment Co., Ltd.
Maruma Shin Heat Treatment Industry Co., Ltd.
Wyeth Electronics Co., Ltd.
Asakawa Heat Treatment Co., Ltd.
Maruma Shin Heat Treatment Industry Co., Ltd.
International Classes:
C21D9/28; C21D1/10; H05B6/10; H05B6/36; C21D9/32
Domestic Patent References:
| JP2002349682A | ||||
| JP2000205274A | ||||
| JP60194046A | ||||
| JP51007446B1 | ||||
| JP7242933A | ||||
| JP2002356713A | ||||
| JP6158171A |
Other References:
野寺克己,超高周波加熱装置と応用事例,1989年4月金属臨時増刊号,株式会社アグネ,1989年 4月25日,第106-110頁
Attorney, Agent or Firm:
Satoshi Asakawa