| 摘要 |
<p>PURPOSE: To uniformly heat a metal strip by providing magnetic flux guides adjacent to two J-shaped inductors in a looped form CONSTITUTION: An induction coil formed with a pair of J-shaped conductors 21, 22 has straight portions and curved portions; the curved portions being combined to form the active center of the induction coil. The active portions of the conductors 21, 22, or the straight portions, and the curved portions are partially encircled in magnetic flux guides 40, 41, 42. These guides 40, 41, 42 are located on the conductors 21, 22, so that an induction heat current can produce a substantially lateral magnetic field against a plane formed by a metal strip S. The guides 40, 41, 42 encircles the respective three sides of the conductors 21, 22, so that only the face of the strip S facing active surfaces 23, 24 of the conductors 21, 22 is heated.</p> |
