The intermediate frequency melting furnace generates high-density magnetic lines in the induction

 coil and cuts the metal material contained in the induction coil. The Xi'an melting furnace generates 

large eddy currents in the metal material, which also have some properties of intermediate frequency 

current, that is, the free electrons of the metal itself flow in a resistive metal body to generate heat. For 

example, placing a metal cylinder in an induction coil with alternating medium frequency current, 

the metal cylinder is not in direct contact with the induction coil, and the temperature of the coil 

itself is already very low. However, the surface of the cylinder is heated to turn red or even melt, 

and the speed of this turning red and melting can be achieved by adjusting the frequency and

 current strength. If the cylinder is placed at the center of the coil, the temperature around the 

cylinder is the same, and the heating and melting of the cylinder does not produce harmful 

gases or strong light pollution to the environment