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How Induction Heating Works
How exactly does induction heating work? It helps to have a basic understanding of the principles of electricity. When an alternating electrical current is applied to the primary of a transformer, an alternating magnetic field is created. According to Faraday's Law, if the secondary of the transformer is located within the magnetic field, an electric current will be induced. |
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In a basic induction heating setup, a solid state IGBT power supply sends an AC current through a copper coil, and the part to be heated is placed inside the coil. The coil serves as the transformer primary and the part to be heated becomes a short circuit secondary.When a metal part is placed within the coil and enters the magnetic field, circulating eddy currents are induced within the part.These currents flow against the electrical resistively of the metal, generating precise and localized heat without any direct contact between the part and the coil. |
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Important factors to consider
The efficiency of an induction heating system for a specific application depends on several factors: the characteristics of the part itself, the design of the induction coil, the capacity of the power supply, and the degree of temperature change required for the application. |
The Advantages of Induction Heating
Choose induction heating over convection, radiant, open flame or another heating method. Here's a short summary of the major advantages that modern solid state induction heating offers for lean manufacturing |
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