Heating principle of steel billet induction heating equipment

Technical background:

Intermediate frequency induction heating is a widely used heating method in steel billet induction heating system, based on the basic theory of electromagnetic induction. Through the action of electromagnetic fields, current generates thermal energy on the surface of steel billets, thereby raising their temperature. The intermediate frequency induction heating equipment of Forever Electromechanical adopts this principle and is appliedin industries such as steel metallurgy and mechanical processing.

Principle of medium frequency steel billet induction heating machine:

1. Principle of electromagnetic induction:

Intermediate frequency heating relies on the electromagnetic induction effect generated by high-frequency current in metallic materials. An alternating magnetic field is formed around the electrified conductor (heating coil), which induces current (eddy current) in the steel billet. Eddy currents are converted into heat through the resistance of metals, thereby achieving heating.

2. Thermal energy conduction:

During the intermediate frequency heating process, eddy currents mainly concentrate on the surface of the steel billet, and due to the resistance effect of the steel, the surface temperature will gradually increase. As the heating continues, the heat gradually conducts into the interior of the steel billet, achieving uniform overall heating.

3. Relationship between heating depth and frequency:

The frequency of intermediate frequency heating is usually between 1 kHz and 100 kHz. The higher the frequency, the more concentrated the eddy current is on the metal surface, and the heating depth is shallower; When the frequency is low, eddy currents can penetrate deeper and are suitable for heating larger volume steel billets.

The intermediate frequency induction heating technology of Forever Electromechanical is based on the principle of electromagnetic induction, which can achieve uniform heating of steel billets through precise control of frequency and current intensity. The application of this technology ensures the stability of steel in subsequent processing and improves production efficiency.