Fundamentals of Induction Heating

The workpiece is placed in the inductor. When an alternating current passes through the inductor, an alternating magnetic field with the same frequency as the current is generated around the inductor, and an induced electromotive force is correspondingly generated in the workpiece, forming an induced current on the surface of the workpiece, that is, vortex. This eddy current converts electrical energy into heat energy under the action of the resistance of the workpiece, so that the surface temperature of the workpiece reaches the quenching heating temperature, and surface quenching can be realized.