Magneforce Heat Station Induction Heaters Provide the Unique Advantages of Non - Contact Electrical Resistance Heating
HOW DOES INDUCTION HEATING WORK?
- An alternating current is used to flow through an inductor (coil)
- The current surrounds or is in close proximity to a metallic or conductive workpiece
- This causes a varying magnetic field emanating from the coil
- The magnetic field links with the workpiece and induces a voltage in the workpiece
- The induced voltage results in isolated current flows (eddy currents) within the workpiece
- The inherent resistance of the material to the current flow (I R losses) produces heat
- The induction heating coil can be thought of as a transformer primary
- The workpiece can be thought of as a transformer secondary
- There is no physical connection between the induction coil and the workpiece
Induction heating is most efficient when used on magnetic materials since heating takes place as a result of eddy current losses as well as hysteresis losses. All metals and conductive materials can be heated by induction with varying degrees of efficiency.