The heating furnace is widely used in the metallurgical industry, and the heating furnace plays an irreplaceable role in the work, so let us understand the working principle and equipment characteristics of the quenching heating furnace with Kehua Induction Heating Equipment
. Quenching heating furnace 1. Quenching heating furnace In the metallurgical industry, heating furnace is used to refer to the industrial furnace that heats the metal to the forging temperature, including continuous heating furnace and chamber heating furnace. The heating furnace for metal heat treatment is also called heat treatment furnace. A furnace that heats an ingot or makes the temperature inside the ingot uniform before blooming is called a soaking furnace. In a broad sense, heating furnaces also include soaking furnaces and heat treatment furnaces. Second, the working principle The working principle of the heating furnace is to put the workpiece into the inductor (coil), when an alternating current of a certain frequency is passed into the inductor, an alternating magnetic field is generated around it. The electromagnetic induction of the alternating magnetic field produces a closed induced current in the workpiece—eddy current. The distribution of the induced current on the cross section of the workpiece is very uneven, and the current density on the surface of the workpiece is very high and gradually decreases inward. This phenomenon is called the skin effect. The electric energy of the high-density current on the surface of the workpiece is converted into thermal energy, which increases the temperature of the surface layer, that is, surface heating is achieved. The higher the current frequency, the greater the current density difference between the surface layer and the inside of the workpiece, and the thinner the heating layer. Surface quenching can be achieved by rapid cooling after the temperature of the heating layer exceeds the critical point temperature of the steel. 3. Features of the equipment 1. Adopt German Siemens IGBT power tube and unique inverter technology 2. Adjustable power time of heating and heat preservation process is beneficial to improve the quality of heating and repeatability of heating, and simplify the operation technology of workers. 3. The installation is simple, just connect the single-phase 220V power supply to enter and exit the water. 4. It occupies very little area and is easy to operate. It can be learned in a few minutes to be particularly safe. The output voltage is lower than 36V, avoiding the danger of high-voltage electric shock. 5. No open flame, safer. Using overcurrent to generate electromagnetic induction, it only heats any metal. 6. The heating efficiency is more than 90%, which saves 30-40% of electricity compared with high frequency and medium frequency, and almost no electricity is needed in the shutdown state. And it can be used continuously for 24 hours. 7. The 100% load duration rate can be carried out under the heating state of the maximum power for 24 hours continuously. 8. The induction coil can be disassembled and assembled freely, and the replacement is convenient. The ultra-fast heating speed greatly reduces the oxidation deformation of the workpiece. 9. With the control function of constant power and constant current, it can heat efficiently and quickly to the greatest extent, and optimize the heating process of metal workpieces. 10. The installation is simple, just connect the three-phase 380V power supply, water in and out, and it can be completed in a few minutes. Quenching heating furnace The working principle and equipment characteristics of the quenching heating furnace have been introduced to us by Kehua Induction Heating Equipment. This heating furnace is very convenient to install, and it occupies a small area and is easy to operate.
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