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What is Induction Heating?
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| Induction
heating systems are based on the application of
electromagnetic induction.
The basic components of this type of system are:
an AC power supply, an inductor (copper coil),
and a metal workpiece. |
| The
power supply sends an alternating current through the
inductor producing a magnetic field that induces an
electrical current in the workpiece and thus heating the
workpiece without any physical contact. |
| Due
to the fact that the applied magnetic field is
alternate, the induced current does not uniformly
circulate in the workpiece so it is more intense on the
surface and null in the center.
The current’s penetration depth depends on the
inducting current’s frequency, resulting in a higher
heating level with a higher frequency. |
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