The principle of induction heating current

The principle of induction heating current

The hot forming elbow machine and pipe expanding machine are both heated by induction heating.
The induced current density decreases gradually from the surface log center of the heating workpiece, and the higher the frequency of the current, the greater the rate of decrease.The reduction rate of current density also depends on the resistivity and relative permeability of the heated material.Represents the distribution of induced current changes with the penetration depth and the factors controlling the current distribution. The depth obtained when the current density drops to about one third of the surface current density value is the "skin depth".