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What is the scheme of intermediate frequency diathermy furnace? What are the characteristics? -Kehua

by:Kehua     2022-08-05
Intermediate frequency diathermy furnace is an important equipment in the smelting industry, and a good intermediate frequency diathermy furnace solution can improve work efficiency. So what is the scheme of the intermediate frequency diathermy furnace? What are the characteristics? Kehua will introduce the scheme of the intermediate frequency diathermy furnace in detail. Come and see it together. Medium frequency diathermy furnace scheme Intermediate frequency diathermy furnace diathermy refers to the overall penetration heating of metal before thermal deformation or heat treatment. The power frequency alternating current is rectified into direct current, and then the direct current is converted into an adjustable intermediate frequency current, which supplies the intermediate frequency alternating current flowing through the capacitor and the induction coil, generates high-density magnetic lines of force in the induction coil, and cuts the induction coil. The metal material contained in the metal material produces a large eddy current in the metal material. This eddy current also has some properties of intermediate frequency current, that is, the free electrons of the metal itself flow in the metal body with resistance to generate heat. Medium frequency diathermy furnace scheme: Electrical part: Medium frequency power supply Main technical indicators: Power supply model Input voltage Output power Working frequency Medium frequency power supply Features Description: Simple main circuit structure, stable and reliable work, strong starting ability: thyristor medium frequency power supply, using advanced The microelectronic technology realizes the swept-frequency zero-voltage soft start, which has no impact on the power grid, and the start-up success rate is 98%, which can be started with heavy loads. The inverter adopts parallel resonance to ensure the full-load output of the equipment. The control system adopts advanced large-scale digital circuit control technology. Easy to debug and easy to maintain: The main control board is made of a new type of double-sided printed circuit board as the central controller, which is extremely convenient for debugging. Each function control circuit realizes internal connection, eliminating all failure points. The necessary logic control of the start, stop and operation of the intermediate frequency power supply is completely realized by the electronic circuit, and the relay logic circuit is abolished, which eliminates the influence of vibration on the operation of the equipment, and greatly improves the reliability of the equipment. High control precision: The thyristor intermediate frequency power supply designed and manufactured by our company uses high-precision operational amplifiers to form a voltage regulator and a current regulator to form a double-loop closed-loop regulator. The workpiece entering and leaving the inductor will not cause large fluctuations in the power supply. fluctuations also have a strong inhibitory effect. Perfect protection function, accurate and reliable action: The main circuit is provided with fast fuse protection, each thyristor has resistance-capacitance protection (dv/dt), and the inverter thyristor has commutation inductance to prevent di/dt from being too large. Overvoltage, overcurrent, etc. pull the inverter protection. Equipment characteristics of medium frequency diathermy furnace 1. Fast heating speed, high production efficiency, less oxidation and 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, and ordinary workers can carry out the continuous work of the forging task ten minutes after going to work with the intermediate frequency electric furnace, and there is no need for professional workers to burn the furnace and seal the furnace in advance. . There is no need to worry about the waste of heated billets due to power outages or equipment failures. Due to the fast heating rate of this heating method, there is very little oxidation. Compared with coal-fired furnaces, each ton of forgings saves at least 20-50 kilograms of steel raw materials, and its material utilization rate can reach 95%. Because the heating method heats evenly and the temperature difference between the core surface is extremely small, the life of the forging die is greatly increased in forging, and the surface roughness of the forging is also less than 50um. 2. The working environment is superior, improving the labor environment of workers and the company's image, no pollution, and low energy consumption. Compared with the coal furnace, the induction heating furnace can no longer be roasted and smoked by the coal furnace under the scorching sun, and can meet the requirements of various indicators of the environmental protection department, while establishing the company's external image and the future development of the forging industry. trend. Induction heating is the most energy-saving heating method in electric heating furnaces. The power consumption of a ton of forgings heated from room temperature to 1100 ℃ is less than 360 degrees. 3. The heating is uniform, the temperature difference between the core and the surface is extremely small, and the temperature control accuracy is high. Medium frequency diathermy furnace scheme The heat of induction heating is generated in the workpiece itself, so the heating is uniform, and the temperature difference between the core and the surface is extremely small. The application of temperature control system can realize precise control of temperature and improve product quality and qualification rate. The medium frequency diathermy furnace heating device has the advantages of small size, light weight, high efficiency, excellent thermal processing quality and favorable environment. The above is a detailed introduction to the scheme of the intermediate frequency diathermy furnace. Are you impressed after watching it? If you have an idea, here I recommend Kehua, Kehua is powerful and a good choice.
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