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Heating Principle of Medium Frequency Induction Heating Furnace


The medium frequency induction heating furnace uses intermediate frequency current to create a high-frequency electromagnetic field. Thus, it will form the magnetic induction vortex inside the iron and other magnetic materials and generates heat, so as to achieve the purpose of heating the raw materials.

Judian Medium Frequency Induction Heating Furnace

Heating Principle of Medium Frequency Induction Heating Furnace

The medium frequency induction heating furnace is mainly composed of a frequency conversion device and an induction coil. The frequency conversion device can convert the power frequency 50Hz AC into an intermediate frequency AC of 100Hz to 10000H. It rectifies the three-phase power frequency alternating current into direct current and then converts the direct current into an adjustable intermediate frequency current, which is supplied by a capacitor and an induction coil. When the medium-frequency alternating current passes through the induction coil, it will generate high-density magnetic induction lines, and cut the metal material contained in the induction coil, thereby causing the metal to heat up.

The medium frequency induction heating furnace is suitable for smelting carbon steel, alloy steel, and special steel, and can also be used for smelting and heating precious metals such as copper and aluminum. The equipment is small in size, light in weight, high in efficiency, low in power consumption, fast in melting and heating, easy to control in temperature control, and high in production efficiency.

The heating temperature generally does not exceed 1,250 degrees, which is suitable for pre-forging heating in the forging industry and metal quenching and tempering heating in the heat treatment industry.

Features of Medium Frequency Induction Heating Furnace

Fast Heating Speed and Little Oxidation Loss

The intermediate frequency heating furnace uses the principle of electromagnetic induction to generate heat in the workpiece itself by eddy current. Oxidation loss is very little, especially suitable for precision forging.

Various Input and Output Structures

According to the different requirements, it can match different feeding and discharging machines to form an optimized combination of equipment. The specific forms include continuous type, intermittent type, etc. The discharge forms include tilting type, straight turning type, etc.

Flexible for Upgrade

According to requirements, customers can choose an automatic feeder, a discharger, a discharge sorter, and a closed-circuit water circulation system.

High Operational Safety

The system has multiple protections, including water temperature and pressure alarms of the cooling system, and temperature alarms.

Slight Temperature Difference between the Core and Surface

The furnace heats the material evenly. The advanced temperature control system can ensure that the temperature difference between the inside and surface of the material is small.

Low Energy Consumption for Heating

Induction heating is the most energy-saving heating method in the electric heating furnace. The power consumption of ton forgings heated from room temperature to 1100 ° C is less than 360 degrees.

The above is the working principle and characteristics of the medium frequency induction heating furnace. It is the main equipment in the casting forging and heat treatment workshop. Its stability, reliability, and safety are the guarantee for the normal and stable operation of the production line. It has a good development prospect in the field of thermal processing.

Luoyang Judian is a professional manufacturer of medium frequency induction heating furnaces. If you have any questions about the heating furnace, please feel free to contact us. We will respond to you as soon as possible.

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