Induction heating generators

What is the purpose of induction heating generators?

Induction generators convert alternating current to a higher frequency current to then deliver it to the operating coil, allowing an electromagnetic field to be created within it.
When a workpiece is placed in this field, eddy currents are induced in the workpiece. The friction caused by these currents generates precise, clean, non-contact heat. Depending on the power and on the frequency, we are able to determine the heating rate and the penetration depth of the heat.
A water cooling system is usually required to cool the work coil and induction system.

Operating frequency

The size of the workpiece and the heating application dictate the operating frequency of the induction heating equipment. In general, the larger the workpiece, the lower the frequency and the smaller the workpiece, the higher the frequency.
The operating frequency is determined by the tank circuit capacitance, coil inductance and workpiece material properties.

Power requirements

The power required to heat the workpiece depends on:

• The mass of your work piece;
• The material properties of your work piece;
• The temperature increase you require;
• The heating time required to meet your process needs;
• The effectiveness of the field owing to the coil design;
• Any heat losses during the heating process.

Once the power required to heat the workpiece is determined, the appropriate induction heating equipment can be selected, taking into account the coupling efficiency of the coil.