What Is Induction Heating? | How Does It Work?

How does induction heating work?

An induction heating system includes an induction power supply which converts line power to a higher frequency alternating current. This energy is delivered to a workhead to create an electromagnetic field within the coil. A work piece is placed in the coil where this field induces a current in the work piece, which generates heat in the work piece. 

If you want to learn more, please visit our website Hitfar.

Induction heating is used very effectively in many processes like brazing, soldering and shrink fitting, from something as small as a hypodermic needle to a large wheel on a military tank. Many companies in the automotive industry, medical device industry and aeronautics make efficient use of induction heating in their processes. 

Read more about how induction heating works:

induction heating, method of raising the temperature of an electrically conductive material by subjecting it to an alternating electromagnetic field. The electric currents induced in the object (although it is electrically isolated from the source of the field) bring about dissipation of power in the form of heat. Induction-heating methods are applied most widely in metalworking to heat metals for soldering, tempering, and annealing. The method is also employed in induction furnaces for melting and processing metals.

Are you interested in learning more about electromagnetic induction heater? Contact us today to secure an expert consultation!

The principle of the induction-heating process resembles that of the transformer. A water-cooled coil, or inductor, acting as the primary winding of a transformer, surrounds the material to be heated (the workpiece), which acts as the secondary winding. Alternating current flowing in the primary coil induces eddy currents in the workpiece, causing it to become heated. The depth to which the eddy currents penetrate, and therefore the distribution of heat within the object, depends on the frequency of the primary alternating current and the magnetic permeability, as well as the resistivity, of the material. Induction hardening, widely used to increase the resistance of steel objects to wear, can be effected by brief exposure to a high-frequency field.

Britannica Quiz

Electricity: Short Circuits & Direct Currents

The related method of producing heat in nonconductors is called dielectric heating.

Want more information on Full Bridge Electromagnetic Induction Heater? Feel free to contact us.