As a manufacturer of industrial furnaces
As a manufacturer of industrial furnaces, Shennai has produced many medium frequency induction furnaces.
When users need to smelt gold, silver, copper, iron and aluminum, they can consider using medium frequency induction furnaces,
Medium frequency induction heating is characterized by fast heating, uniform heating, non-contact heating, pollution-free, small operation area and high productivity. Therefore, it is increasingly used in many fields such as surface quenching of industrial metal parts, metal smelting, and bar heating. Do you know what the principle of medium frequency induction heating is?
The principle of medium frequency induction heating is to use the method of electromagnetic induction. When the magnetic flux surrounded by the conductor loop changes, the loop will produce induced potential.
The conductor in the alternating magnetic field also generates induction potential under the effect of electromagnetic induction, which forms induction current in the conductor. The induction current overcomes the resistance of the conductor itself and generates Joule heat. This heat is used to heat the conductor itself, so that it can be heated and melted to achieve various purposes of thermal processing.
The basic components of induction heating system include induction coil, AC power supply and workpiece. The coil can be made into different shapes according to different heating objects.
The coil is connected to the power supply. The power supply provides alternating current for the coil. The alternating current flowing through the coil generates an alternating magnetic field passing through the workpiece. The magnetic field causes the workpiece to generate eddy current for induction heating.
There are three kinds of AC in medium frequency induction heating:
The surface should be. When the conductor is put into the inductor, an alternating magnetic field will be generated to produce an inductive current of the same frequency in the workpiece conductor. The distribution of this inductive current in the workpiece is uneven. It is strong on the surface, but very weak inside. It is close to zero at the center. It is mainly the result of rapidly heating the surface of the part, or even the diathermy melting.
Adjacent connection: when two adjacent conductors are connected with alternating current, the current in the conductor shall be redistributed. When the current of both conductors is reversed, the current will gather at the inner side of the conductor, and when the current is in the same direction, it will be discharged at the outer side of the conductor.
The ring shall be such that when the alternating current passes through the circular solenoid, the larger current appears on the inside of the coil conductor.
The induction coil itself is shown as a circular strain, and the furnace body is shown as a surface strain, and the two are adjacent to each other.
Induction is based on the principle of electromagnetic induction. The heat is generated in the workpiece itself, and the heating method is fast, so the heating rate is high, the process repeatability is good, and the energy is relatively energy-saving.
The heating object does not need to contact the induction coil, so there is less oxidative decarburization and higher heating rate.
Medium frequency induction heating applies three kinds of AC stress, namely, surface, proximity and ring, which can be used for local heating, and the product quality is good, and it is easy to control and labor-saving.
High temperature control precision, easy to realize uniform heating and small temperature difference between core and surface by induction heating. The application of temperature control system can realize the control of temperature with low energy consumption and no pollution.
Compared with other heating methods, induction heating has the advantages of high heating rate, energy saving, pollution-free, small operation area and high productivity; Under diathermy condition, the power consumption of heating from room temperature to 1100 ℃ is less than 360.
Induction heating is a very popular way in the market today. You can pay attention to Luoyang Shennai and ask about the induction furnace.