Induction Furnace Manufacturers

Initially, the theories of eddy currents and induction heating were proposed by Foucault and Heaviside, and a steady stream of theoretical research work has subsequently developed [1+2,0~25], but this work has not yet been applied to the improvement of induction heating coils and power supplies, and is only now becoming increasingly understood and applied.

These theories of induction heating are introduced in other articles on this website, and induction heating produces special heating effects on workpieces of different shapes, such as solid and hollow cylinders and flat plates. Examples of heating of workpieces of different shapes and metal materials are given, and the relationship between the depth of penetration of induction heating current, frequency, resistivity and permeability is explained.

Induction Furnace

The influence of current penetration depth, magnetic field and workpiece size on the induced power is also described in other articles. Induction heating is mainly based on the three basic principles of electromagnetic induction, "skin effect" and heat conduction. Although the basic concept of induction heating can be represented by a principle similar to the well-known transformer principle, it is better to use a simulated single-turn short-circuited secondary line diagram for induction heating.

The above concept is illustrated by the induction heater and the load. It must be emphasized that this is only a very brief description, showing a simple form of transformer, when the leakage flux is zero, the load current should be equal to the supply current multiplied by the turns ratio of the coil. The losses in the primary and secondary coils are directly related to the losses in the windings.