An electric induction furnace is a type of heating equipment widely used in the industrial field, and its basic principle is to use the eddy currents generated by electromagnetic induction to generate heat in a conductor. According to different industrial needs and heating objects, electric induction heating furnaces can be divided into many types. This article will provide a professional analysis of the classification of electric induction heating furnaces and their applications in different fields.
First, the basic principle of electric induction heating furnace
The basic working principle of the electric induction heating furnace is to generate eddy currents in the conductor under the action of high-frequency AC power supply, so that the conductor heats itself. This heating method has the advantages of high efficiency, uniformity and precise temperature control, so it has been widely used in metal heating, smelting, heat treatment and other fields.
2. Classification of electric induction heating furnaces
1.Induction heating furnaces are classified according to the working frequency:
Low-frequency inductive heating furnace: the working frequency is generally in the range of tens of hertz to several thousand hertz, which is suitable for the heating of large materials, such as forging, heat treatment, etc.
Medium frequency inductance heating furnace: the working frequency is in the range of several kilohertz to tens of kilohertz, which is suitable for the heating of small and medium-sized workpieces, such as casting, quenching, etc.
High-frequency inductive heating furnaces: operating frequencies of more than tens of kilohertz, suitable for high-precision heating of small parts, e.g. for surface treatment applications.
2.Induction heating furnaces are classified according to structure:
Multi-turn coil inductance heating furnace: The number of coils is large, which is suitable for the scene of uniform heating of the workpiece.
Single-turn coil inductance heating furnace: The number of coils is small, and it is suitable for local heating of specific parts.
3.Induction heating furnaces are classified according to their use:
Metal heating inductance heating furnace: mainly used for heating, smelting and heat treatment of metal materials.
Plastic heating inductance heating furnace: suitable for the heating and forming of plastic materials.
Glass heating inductive heating furnace: used for the molding and processing of glass products.
3. Application of electric induction heating furnace
1.Metal heat treatment: Electric induction heating furnaces are widely used in metal heat treatment, including quenching, tempering, annealing and other processes, which can improve the hardness, strength and wear resistance of materials.
2.Metal smelting: Electric induction heating furnaces are used in the field of metal smelting for fast and efficient metal smelting, such as iron, copper, aluminum and other metals.
3.Plastic molding: For plastic molding processes that require precise temperature control, electric induction furnaces can provide uniform and controlled heating to ensure molding quality.
4.Glass production: Electric induction furnaces can be used for glass forming, bending and surface treatment in the production of glass products.
Electric induction heating furnaces are widely used in industrial production because of their high efficiency, uniformity and precise temperature control. The different types are suitable for different fields, such as metal heating, plastic molding, and glass production. In the future, with the continuous development of technology, the application field of electric induction heating furnace will continue to expand, providing more efficient and energy-saving heating solutions for industrial production.