This paper examines heating by eddy currents of a ferromagnetic plate that moves at an imposed speed. The periodic electromagnetic field problem in nonlinear media is solved by using the iterative method of polarization, of the Fourier series decomposition and, at each iteration, the harmonics of the electromagnetic field are obtained by solving the eddy currents integral equation. The B-H characteristic of the ferromagnetic medium depends on the temperature. The procedure has remarkable advantages over commercial programes. The numerical results are presented.

Keywords: Induction, Eddy currents, Thermal diffusion, Nonlinear media, Magnetic permeability