Middle frequency induction furnace An electric furnace that uses the induction heating effect of materials to heat or melt materials. The induction furnace uses three types of AC power: industrial frequency (50 or 60 Hz), intermediate frequency (150 to 10,000 Hz) and high frequency (higher than 10,000 Hz). The main components of an induction furnace are an inductor, a furnace body, a power source, a capacitor, and a control system. Under the action of an alternating electromagnetic field in an induction furnace, eddy currents are generated inside the material to achieve the effect of heating or melting. Induction furnaces are generally divided into induction heating furnaces and melting furnaces. Melting furnaces are divided into core induction furnaces and coreless induction furnaces. The core induction furnace is mainly used for the melting and heat preservation of various cast iron and other metals. It can use waste furnace materials and the melting cost is low. Coreless induction furnaces are divided into industrial frequency induction furnaces, triple frequency induction furnaces, intermediate frequency induction furnaces for generator sets, SCR intermediate frequency induction furnaces, and high frequency induction furnaces.
的 An electric furnace that uses the induction heating effect of materials to heat or melt materials is called an induction furnace. The induction furnace uses three types of AC power: industrial frequency (50 or 60 Hz), intermediate frequency (150 to 10,000 Hz) and high frequency (higher than 10,000 Hz). The main components of an induction furnace are an inductor, a furnace body, a power source, a capacitor, and a control system. Under the action of an alternating electromagnetic field in an induction furnace, eddy currents are generated inside the material to achieve the effect of heating or melting. Under the stirring action of this alternating magnetic field, the material composition and temperature in the furnace are relatively uniform. The forging heating temperature can reach 1250 ° C and the melting temperature can reach 1650 ° C. In addition to the induction furnace can be heated or smelted in the atmosphere, it can also be heated or smelted in a protective atmosphere such as vacuum and argon, neon, etc. to meet the special quality requirements. Induction furnaces have outstanding advantages in terms of heat penetration or melting of soft magnetic alloys, high resistance alloys, platinum group alloys, heat resistance, corrosion resistance, wear resistant alloys and pure metals. Induction furnaces are generally divided into induction heating furnaces and melting furnaces. Melting furnaces are divided into core induction furnaces and coreless induction furnaces. The cored induction furnace has an iron core passing through the inductor and is powered by a power frequency power supply. It is mainly used for the melting and insulation of various cast iron, brass, bronze, zinc and other metals. The electrical efficiency is above 90%. The melting cost is low, and the maximum furnace capacity is 270 tons. Coreless induction furnace without iron core passes through the inductor and is divided into industrial frequency induction furnace, triple frequency induction furnace, generator set intermediate frequency induction furnace, silicon controlled intermediate frequency induction furnace, high frequency induction furnace.
Quick heating speed, high production efficiency, less oxidative decarbonization, saving material and forging die costs
Since the principle of intermediate frequency induction heating is electromagnetic induction, its heat is generated in the workpiece itself. Ordinary workers can use the intermediate frequency electric furnace for 10 minutes after work to carry out the continuous work of the forging task. . There is no need to worry about the waste of the heated billet of the coal furnace due to power failure or equipment failure. Because this heating method has a fast heating speed, it has very little oxidation. Compared with a coal-fired furnace, each ton of forgings can save at least 20-50 kg of steel raw materials, and its material utilization rate can reach 95%. Because this heating method heats evenly and the core surface temperature difference is extremely small,
Forging also greatly increases the life of the forging die, and the roughness of the forging surface is less than 50um.
● Excellent working environment, improve workers' working environment and company image, no pollution, low energy consumption
Compared with the coal furnace, the induction heating furnace is no longer affected by the baking and fumigation of the coal furnace under the hot sun, which meets the various requirements of the environmental protection department, and also establishes the company's external image and the future development trend of the forging industry.
● Heating uniformly, core watch temperature difference is very small, temperature control accuracy is high
Induction heating generates its own heat in the workpiece, so the heating is uniform, and the core temperature difference is extremely small. The application of temperature control system can achieve precise control of temperature and improve product quality and qualification rate.
The medium frequency furnace heating device has the advantages of small size, light weight, high efficiency, excellent thermal processing quality and favorable environment. It is rapidly eliminating coal-fired furnaces, gas furnaces, oil furnaces and ordinary resistance furnaces. It is a new generation of metal heating equipment.
An electric furnace that uses the induction current generated by an induction coil to heat materials. If the metal material is heated, it is placed in a crucible made of refractory material. If heating non-metallic materials, place the material in a graphite crucible. When the frequency of the alternating current is increased, the frequency of the induced current is increased correspondingly, and the heat generated is increased. The induction electric furnace heats quickly, the temperature is high, the operation and control are convenient, the material is less polluted during the heating process, and the product quality can be guaranteed. It is mainly used for smelting special high-temperature materials, and can also be used as heating and control equipment for single crystal growth from the melt.