发明名称 |
Induction heater and induction heating method |
摘要 |
An object of the present invention is to provide an induction heater and an induction heating method capable of heating by induction a work in which a gear portion and a shaft are integrated. An induction heater for a gear portion and a stepped shaft is arranged in such a manner that a first heating coil (annular coil) surrounds the gear portion and that a second heating coil (linear coil) faces the stepped shaft in an axial direction. Alternating currents of different frequencies are supplied to the first heating coil 1 and the second heating coil. Further, a part of the second heating coil is arranged so as to come opposite a boundary between the gear portion and the stepped shaft, thereby connecting a hardened pattern of the gear portion by the first heating coil and a hardened pattern of the stepped shaft by the second heating coil. |
申请公布号 |
US8274022(B2) |
申请公布日期 |
2012.09.25 |
申请号 |
US20090653518 |
申请日期 |
2009.12.15 |
申请人 |
MINOUE JUNJI;NAGAO TAKEHIKO;FUJI ELECTRONICS INDUSTRY CO., LTD. |
发明人 |
MINOUE JUNJI;NAGAO TAKEHIKO |
分类号 |
H05B6/12;H05B6/10 |
主分类号 |
H05B6/12 |
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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