What is the basic principle of medium frequency electric furnace heating? What are the advantages of medium frequency electric furnace

28,2022

Nowadays, there are many kinds of heating machines and equipment, among which the medium frequency heating furnace is a more common heating machine and equipment. The vast majority of smelters and metal laser cutting processing companies are using the medium frequency heating furnace. Now Guangdong Lihua will give you a detailed introduction to the basic principle of medium frequency electric furnace heating, and what are the advantages of medium frequency electric furnace?
What is the basic principle of medium frequency electric furnace heating
According to the basic concept of electromagnetic induction, the three-phase DC AC power rectifier is turned into a DC power supply, and then the DC power is turned into an adjustable medium frequency current to provide a load composed of capacitors and electromagnetic coils (electromagnetic coils and capacitors can be connected in parallel or in series), create dense magnetic induction lines in the induction coils, and laser cut the metal materials contained in the electromagnetic induction coils, It causes very large vortices in metal materials. This kind of vortex also has some characteristics of medium frequency current, that is, the free charge of the metal material itself flows in the metal material with resistor to form heat. For example, if a metal material cylinder is placed in an electromagnetic induction coil with alternating medium frequency current, the metal material cylinder does not directly contact the electromagnetic coil, and the temperature of the plug-in electromagnetic coil is already very low, but the surface of the cylinder is heated to reddish, and even melted, and the rate of such reddish and melting can be completed only by adjusting the frequency and the strength of the current. If the cylinder is placed at the core of the electromagnetic coil, the temperature near the cylinder is the same, and the cylinder heating and melting do not cause harmful substances and strong light pollution.

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