Intermediate frequency furnace

The intermediate frequency furnace is mainly composed of a ruthenium made of refractory material in the power source, the induction coil and the induction coil. The crucible contains a metal charge, which is equivalent to the secondary winding of the transformer. When the induction coil is connected to the AC power source, an alternating magnetic field is generated in the induction coil, and the magnetic flux cuts the metal charge in the crucible, and the crucible is generated in the furnace. The induced electromotive force is characterized by a single turn and is closed because the charge itself forms a closed loop. Therefore, an induced current is simultaneously generated in the charge, and when the induced current passes through the charge, the charge is heated to cause it to melt.

The intermediate frequency electric furnace uses the intermediate frequency power source to establish an intermediate frequency magnetic field, so that the induced eddy current inside the ferromagnetic material generates heat and reaches the purpose of heating the material. The medium frequency electric furnace adopts 200-2500Hz intermediate frequency power supply for induction heating, smelting and heat preservation. The medium frequency electric furnace is mainly used for melting carbon steel, alloy steel, special steel, and can also be used for melting and warming of non-ferrous metals such as copper and aluminum. The equipment is small in size and weight. Light, high efficiency, low power consumption, fast melting and heating, easy control of furnace temperature and high production efficiency.

The medium frequency induction furnace (hereinafter referred to as the intermediate frequency furnace) operates at a frequency between 50 and 10 Hz and is widely used for the melting of non-ferrous metals and ferrous metals. Compared with other casting equipment, the medium frequency induction furnace has the advantages of high thermal efficiency, short melting time, less burning of alloying elements, wide melting material, less environmental pollution, and control of the temperature and composition of the molten metal.

It is a power supply device that converts the power frequency 50HZ alternating current into an intermediate frequency (300HZ or more to 1000HZ), converts the three-phase power frequency alternating current into a direct current, and then converts the direct current into an adjustable intermediate frequency current, which is supplied by the capacitor and the induction. The intermediate frequency alternating current flowing in the coil generates high-density magnetic lines in the induction coil, and cuts the metal material contained in the induction coil to generate a large eddy current in the metal material.