What is the difference between aluminum melting furnace and intermediate frequency furnace?

According to the different heating methods, the aluminum melting furnace uses electric heating, including resistance melting aluminum furnace, modulated wave melting furnace aluminum furnace, high frequency aluminum melting furnace, intermediate frequency aluminum melting furnace,

The intermediate frequency aluminum melting furnace is an intermediate frequency electric furnace, which is a kind of intermediate frequency electric furnace for melting aluminum alloy. It uses the principle of electromagnetic induction to place the aluminum alloy in an induction coil to generate eddy current and generate heat to melt, which belongs to induction heating.