What are the working principle and application areas of medium frequency melting furnace?

Medium Frequency Melting Furnace is a kind of equipment that uses electromagnetic induction principle for melting. Its working principle is to induce the eddy current in the melting material through the electromagnetic induction field generated by the high frequency AC power supply, so that it heats up and melts rapidly. Medium frequency melting furnace is mainly used in the melting and heat treatment process of non-ferrous metals, diamond and other materials, which has the advantages of high efficiency, energy saving and environmental protection. The following will introduce its working principle and application areas in detail.

The working principle of medium frequency melting furnace is as follows: firstly, the melting materials are put into the furnace chamber, then the AC power supply is turned on, and the current generates a strong magnetic field through the working coil. Due to the change of magnetic field, eddy current is generated in the melting material. The eddy currents flow rapidly inside the melting material and generate frictional heat, which causes the material to heat up rapidly and eventually reach the melting temperature. On the other hand, the movement of the eddy currents can also promote the mixing and homogeneity of the melt and improve the melting effect. By controlling the temperature of the furnace chamber, the melting speed and the stirring effect, the melting and heat treatment of different materials can be realised.

Medium frequency melting furnace has a wide range of applications, mainly including the following aspects:

1. Non-ferrous metal melting: Medium frequency melting furnace can be used in the melting process of copper, aluminium, zinc, lead, cadmium and other non-ferrous metals. Non-ferrous metals usually have a high melting point and thermal conductivity, the traditional melting method is inefficient and energy consumption. The medium frequency melting furnace can greatly improve the melting efficiency due to its eddy current which can rapidly heat the materials, and the operation is flexible to meet the different needs of the production.

2. Metal alloy melting: Medium frequency melting furnace can be used for all kinds of metal alloy melting process. Metal alloys are usually composed of two or more metal elements, with high melting point and complex composition. Using the characteristics of medium frequency melting furnace, different metal materials can be quickly melted and mixed, so as to get the required metal alloy.

3. Foundry industry: Medium frequency melting furnace is also widely used in foundry industry. Through the medium frequency melting furnace, the metal materials can be quickly melted and poured into the casting mould for casting. Compared with the traditional resistance furnace, medium frequency melting furnace has the advantages of fast heating speed, good uniformity, etc., which can improve the quality of castings and production efficiency.

4. Iron and steel smelting: Medium frequency melting furnace can also be used for iron and steel smelting process of melting and deoxidation and other processes. Steel smelting usually requires high temperature and turbulence to promote the exclusion of impurities and uniform distribution of alloying elements. Medium frequency melting furnace has the characteristics of controllable temperature and good stirring effect, which can ensure the quality of steel materials and improve the smelting efficiency.

5. die-casting industry: medium frequency melting furnace in die-casting industry has also been widely used. Die casting is a process of injecting liquid metal materials into the casting mould for rapid cooling and shaping. Medium frequency melting furnace can provide high temperature metal melting, to ensure a certain melt stability, so as to meet the requirements of high-quality die casting.

In general, medium frequency melting furnace has a wide range of applications in the metal material processing and smelting industry. Its high efficiency and energy-saving features make it an ideal equipment for melting and heat treatment, providing reliable technical support for the production of different industrial fields. However, with the continuous development and innovation of science and technology, medium frequency melting furnace is also in the process of continuous improvement and refinement to meet the needs of more materials and processes.