Induction heating device having transverse flux and variable width inductor

摘要

An electrical winding (2) elongated across the width of a running metal plate (4) is located above the plate and orientated parallel to it. Magnetic bars (9) associated with the winding may be individually slid along it to adjust the field traversing the metal plate and produce an homogeneous heating effect. Further adjustment may be obtained from placing sheets of conducting material in the air gap and profiling the magnetic bars.