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Principles and advantages of electromagnetic induction heating system

Many manufacturing companies now use heating equipment, and electromagnetic induction heating is a relatively advanced heating technology. Next, Haituo Electromechanical will introduce the working principle of the electromagnetic induction heating system. What are the advantages of the electromagnetic induction heating system?

What is the working principle of the electromagnetic induction heating system?

The principle of electromagnetic induction heating is that the alternating current generated by the induction heating power source generates an alternating magnetic field through the inductor (ie, the coil), and the magnetic conductive object is placed therein to cut the alternating magnetic field lines, thereby generating an alternating current (ie, eddy current) inside the object. The eddy current causes the atoms inside the object to move at a high speed and irregularly, and the atoms collide with each other and friction to generate heat energy, thereby heating the article. That is, a heating method in which electric energy is converted into magnetic energy to cause the heated steel body to induce magnetic energy and generate heat. In this way, it fundamentally solves the problem of low efficiency of heating by means of heat conduction such as electric heating sheets and electric heating coils.
Electromagnetic induction heating system
Using MOSFET, IGBT power device and variable frequency control technology, it is efficient, energy-saving and has higher output power;

With constant current and constant power control function, it greatly optimizes the heating process of metal, realizes efficient and rapid heating, and the product superiority is greatly exerted; under the same conditions, it has twice the power saving than the traditional tube high-frequency heating equipment. With 满负荷 load design, it can work 24 hours a day, can be equipped with infrared temperature measurement to achieve automatic temperature control, improve heating quality, simplify manual operation; with heating-heat preservation-cooling three-time function setting, you can get The required heating and heat preservation process is suitable for batch and repetitive heating places; it has various status indications such as overcurrent, overpressure, water shortage, phase loss and load discomfort, providing higher reliability and durability;

The power is selected according to power and frequency. The higher the frequency, the shallower the heating depth, and the lower the frequency, the better the heat permeability;

Principles and advantages of electromagnetic induction heating system
What are the advantages of electromagnetic induction heating system?

1. High-efficiency, energy-saving and rapid heating adopt internal heat heating method, that is, the metal tube inside the barrel is self-heated by electromagnetic induction, and the average preheating time is shortened by 2/3 compared with the heating method of the resistance ring, and the thermal efficiency is as high as 95% or more, and the power saving effect can be Up to 30%-70%.

2. Reduce production cost and improve product quality. The heating part adopts special cable structure, which does not generate heat itself. It can withstand temperatures above 500 °C, and the service life can reach more than 5 years. There is basically no maintenance cost in the later period. According to the excellent energy-saving understanding, electromagnetic heating is the automatic heating of the barrel through electromagnetic induction, and the heat utilization rate is over 95%, which can fully and uniformly heat the raw materials, thereby improving the product quality.

3. The reliable and controllable adjustable host adopts the most advanced industrial machine board, microelectronic control, multi-channel intelligent closed-loop system and perfect protection function, which effectively avoids the aging phenomenon of the host and fully guarantees the long-term safety and stability of the equipment. Run.

Induction heating power supply not only can heat the whole workpiece, but also localized heating of the workpiece; it can realize deep heat penetration of the workpiece, or it can only heat the surface and surface layer; not only can the metal material be directly heated, but also Indirect heating of non-metallic materials. and many more. Therefore, induction heating technology will be more and more widely used in various industries. A surface heat treatment process in which a workpiece is locally heated by an induced current. This heat treatment process is often used for surface hardening, local annealing or tempering, and sometimes for overall quenching and tempering. With the needs of steel, iron, copper, aluminum and alloy industries, induction melting equipment has been favored, more and more industries have applied induction heating equipment, more and more into the induction heating equipment industry, more and more Brands enter the Chinese market.

Nowadays, electromagnetic induction heating systems have been widely used. This is a very advanced heating technology. It not only heats up very fast, but also runs very reliably.
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