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What is the basic principle of induction heating?

An induction heater consists of an electromagnet and an electronic oscillator that passes a high-frequency alternating current (AC) through the electromagnet. The rapidly alternating magnetic field penetrates the object, generating electric currents inside the conductor, called eddy currents.

What is used in induction heating?

Induction heating is a fast, efficient, precise and repeatable non-contact method for heating electrically-conductive materials such as brass, aluminum, copper or steel or semiconducting materials such as silicon carbide, carbon or graphite.

What is induction heating and its types?

Induction heating takes place in an electrically conducting object (not necessarily magnetic steel) when the object is placed in a varying magnetic field. Induction heating is due to the hysteresis and eddy-current losses. Hysteresis losses only occur in magnetic materials such as steel, nickel, and very few others.

What frequency is used for induction heating?

100 kHz to 200 kHz
Most induction heating devices (with induction frequency control) have a frequency range of 100 kHz to 200 kHz. The output range typically incorporates 2.5 kW to 40 kW. Induction heaters in this range are used for smaller components and applications such as induction hardening an engine valve.

What metals are induction heated?

Which metals can be heated using induction?

  • Copper and copper alloys.
  • Brass.
  • Aluminum.
  • Iron.
  • Steel and stainless steel.
  • Tungsten.
  • Chrome.
  • Nickel and nickel alloys.

Can Aluminium be heated by induction?

Induction heating is most useful on ferrous metals because of its magnetic properties. However, induction heating can also heat up aluminum somewhat, which is often enough to remove decals, vinyl and bonded trim.

What is an induction heating?

Induction heating. Induction heating is the process of heating an electrically conducting object (usually a metal) by electromagnetic induction, through heat generated in the object by eddy currents.

What is induction heat treating?

Induction heating is a heat treating process that allows very targeted heating of metals by electromagnetic induction.

What is RF heating?

Dielectric heating, also known as electronic heating, radio frequency heating, and high-frequency heating, is the process in which a radio frequency (RF) alternating electric field, or radio wave or microwave electromagnetic radiation heats a dielectric material.

What is induction heat transfer?

Induction heating is a clean and controlled way to transfer heat into an object. Induction heating is a very cost efficient and effective heating method, due to its selectivity and high efficiency. The frequency of the induction determines the depth of heat penetration and the very specific temperature range of the process.