A calculation method of induction heating processes in magnetic metals

Abstract

Various phenomena in induction heating of magnetic metals are investigated by using a multi-physics simulation method. A new theoretical treatment of kHz frequency magnetic permeability including the hysteresis characteristics is proposed to calculate the induction heating (IH) processes in magnetic metals. The complex phenomena of skin effects, heat emission, resistivity and magnetization in the heated metals are investigated, where the devised methods are applicable to various magnetic investigations. An estimation method is proposed as the retarded-trace method for analyzing the time dependent B-H characteristics.