What is the working principle of electromagnetic heating plate?

Induction heating plate, as the name implies, is a device that uses the principle of electromagnetic induction for heating. Its core is to convert alternating current into high-frequency alternating current through a precisely designed heating coil, and a strong alternating electromagnetic field is generated in this process. When this electromagnetic field meets a special electric heating core (usually made of metal), a miracle happens ---- According to Faraday's law of electromagnetic induction, eddy currents will quickly generate inside the electric heating core. These eddy currents continue to flow inside the metal, and due to the existence of resistance, they will quickly convert into heat energy, thereby rapidly increasing the temperature of the electric heating core and the surrounding medium.

Compared with traditional heating methods, induction heating plates have incomparable advantages. First, its heating speed is extremely fast, and it can reach the set temperature in a short time, which greatly shortens the production cycle and improves production efficiency. Secondly, since all the energy is converted into heat energy during the heating process, the unnecessary loss of energy is reduced, so the induction heating plate has a very high energy efficiency ratio, realizing energy conservation and emission reduction in the true sense. In addition, the induction heating plate also has the characteristics of sensitive control, safety and reliability, which brings unprecedented convenience to industrial production.

Induction heating plates have been widely used in many industrial fields due to their unique advantages. Our polymer coated steel tape hot laminating machine uses induction heating plates to preheat and laminarize steel tape. The heating power can be automatically adjusted according to the machine running speed, which not only greatly improves production efficiency, but also avoids the waste caused by overheating materials at low speeds in traditional infrared heating methods.