发明名称 |
HEAT TREATING DEVICE AND HEAT TREATING METHOD |
摘要 |
<p>A heat treatment apparatus 10 comprises a supporting unit 20 for supporting a columnar workpiece 12 turnably, and an induction-heating coil 30 for induction-heating the workpiece 12 supported turnably by the supporting unit 20. Below the workpiece 12 supported by the supporting unit 20, a cooling tank 50 is provided which contains a liquid coolant. The workpiece 12 is made of steel such as carbon steel for mechanical structure, and spring steel. The workpiece 12 is made of a material which has a magnetic transformation point at 770 °C. The material is ferromagnetic below this temperature, and becomes paramagnetic above this temperature.</p> |
申请公布号 |
EP1659189(A4) |
申请公布日期 |
2009.11.11 |
申请号 |
EP20030774180 |
申请日期 |
2003.11.25 |
申请人 |
NETUREN CO., LTD. |
发明人 |
TANAKA, YOSHIMASA;KOGA, HISAKI;KAWASAKI, KAZUHIRO |
分类号 |
C21D1/42;C21D1/10;C21D9/02 |
主分类号 |
C21D1/42 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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