Induction heating coil and induction heating device using the induction heating coil
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United States of America Patent
Stats
-
Oct 9, 2001
Grant Date -
May 24, 2001
app pub date -
Oct 12, 1999
filing date -
Feb 13, 1998
priority date (Note) -
Expired
status (Latency Note)
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Abstract
There are provided an induction heating coil for carrying out high frequency induction heating (heating during movement) of a hot rolled steel or the like by surrounding the hot rolled steel or the like which is placed on a plurality of conveying rollers and conveyed, and an induction heating apparatus using this induction heating coil. In an induction heating coil 2 for induction heating a heated body (a thin slab 8 or the like) by surrounding it, a first coil portion 13 wound in a spiral form while transferring in one direction (the direction of the arrow mark .alpha.) along a coil axis S and a second coil portion 14 which is connected to a terminal (turn point 18) of the first coil portion 13 and wound back while transferring in the other direction (the direction of the arrow mark .beta.) along the coil axis S are combined so as to overlap in the non-contact state.
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