| 发明名称 |
STEEL COMPONENT, AND METHOD AND DEVICE FOR HEAT TREATMENT OF STEEL |
| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a steel component having a heat-treated hardened layer of the thickness of <300μm on an outer surface without any thermal deformation even with a thin steel material or a steel material of the small diameter. <P>SOLUTION: 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≥50μm and <300μm is formed on the surface of the steel. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
| 申请公布号 |
JP2006328439(A) |
申请公布日期 |
2006.12.07 |
| 申请号 |
JP20050149471 |
申请日期 |
2005.05.23 |
| 申请人 |
YAMANASHI PREFECTURE;Y S DENSHI KOGYO KK;ASAKAWA NETSUSHORI KK;MARUSHIN NETSUSHORI KOGYO:KK |
发明人 |
YASHIRO KOJI;SHIMIZU SEIJI;SUZUKI DAISUKE;SUGITA YOSHIO;SAITO MOTOKI;TAKEDA FUMIHIKO;KUBOTA KATSUHIKO;ODAGIRI KATSUO |
| 分类号 |
C21D9/28;C21D1/10;C21D9/32;H05B6/10;H05B6/36 |
主分类号 |
C21D9/28 |
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