Induction Furnaces

Induction Furnace for Forging Induction furnace is the main force of heating equipment in the forging industry, especially the die forging industry, and has become an indispensable first choice for automatic forging heating production lines. Why is the position of induction furnaces so important in the forging industry? 1. Forging is a method of processing metal mechanical forgings or forging billets under impact or pressure with the help of tools or dies. In order to reduce the striking force of the forging equipment and improve the performance index of the metal, it is necessary to heat the forging billet, and an induction heating furnace is used. 2. The shape and dimensional stability of the forging billet after induction furnace heating are good, and the comprehensive mechanical properties are good. The obvious advantages of forgings are high toughness, reasonable fiber structure, and small performance changes between parts; the intrinsic quality of forgings is related to the proce...

Induction Furnace Earth Leakage Causes and Solutions of Induction Furnace Earth Leakage Reasons for Induction Furnace Earth Leakage A common accident in an induction furnace block is a leak through the hearth. If an accident occurs, if no measures are taken, it will cause the copper tube of the coil to rupture, and the molten iron and coolant will explode. reason: 1. The quality factor of the materials used in the construction of the furnace: generally, the lining material of quartz acid is used. The silicon content of quartz sand and quartz powder should be more than 99.5%, in the form of oily crystals, transparent and free of impurities. Generally, high-purity quartz sand (silicon content 99.85%, hardness 8, density 2.65, refractoriness 1850 degrees) is used. 2. Binder factors used in furnace construction: traditional furnace construction methods generally use boric acid as a binder. Boric acid has both advantages and disadvantages: the advantage is that it adheres quickly at low tem...

Induction Furnace Eddy Current Induction Furnace Eddy Current effect Using enough power to generate a large eddy current in the conductor, current in the conductor can generate heat, causing the metal to be heated or even melted. So induction furnaces were made to smelt metals. In an induction furnace electric diagram , there is a high-power power supply that generates high-frequency current and a coil that generates an alternating magnetic field. A crucible made of refractory material (such as ceramics) is placed in the middle of the coil to hold the metal to be melted. Eddy current induction heating is widely used, such as smelting metal with high-frequency induction furnaces, plasticizing with a high-frequency plastic hot press, and using an eddy current thermal therapy system for treatment. It is often used in induction hardening, induction annealing, and other methods in metal materials science. To improve the surface hardness and wear resistance of the workpiece. Advantages of In...

Energy-saving Effect of IGBT Series Induction Furnace The energy-saving IGBT transistor intermediate frequency power supply saves 25% - 28% more energy than the traditional thyristor intermediate frequency power supply. The key reasons for energy saving are as follows: The inverter voltage is high, the current is small, and the line loss is small. This part can save 15% - 18% energy. The inverter voltage of the energy-saving IGBT transistor intermediate frequency power supply is 2800V, while the inverter voltage of the traditional thyristor intermediate frequency power supply is only 750V, the current is nearly 4 times smaller, and the line loss is greatly reduced; The power factor is high, the power factor is always greater than 0.97, and the reactive power loss is small. This part saves 3% - 5% energy than the thyristor intermediate frequency power supply. Because the energy-saving IGBT transistor intermediate frequency power supply adopts the semi-controllable rectification method, ...

Heating of Aluminum Ingot In the whole process of aluminum alloy profile extrusion, because of the relative speed of the ingot and the extrusion cylinder, friction heat will be caused on the surface of the ingot. If the temperature of the ingot entering the cylinder is consistent with its long and short directions, and the extrusion rate remains stable, the volume element of the ingot will enter the deformation zone at a higher temperature due to the longer friction zone. Therefore, the temperature at the entrance and exit of the profile may be different between the extrusion process and the extrusion process, resulting in the performance difference of the profile in the dimension direction (such as compressive strength, tensile strength, and surface roughness). This kind of performance difference is very bad for the quality of industrial production profiles and urban rail extrusion profiles of heterosexual friends who must have ultra-high and ultra-large cross sections. In order to be...

Induction Furnace Disadvantages In the past 30 years, the application of induction furnaces in the steel casting industry has developed rapidly, of course, because it has many advantages, but on the other hand, it also has many disadvantages. When choosing it as smelting equipment, it is necessary to carry out comprehensive analysis and research, strives to maximize its strengths and avoid its weaknesses, and must not join in the fun and follow the trend. After the equipment is selected, you should have a comprehensive understanding of its characteristics, and strive to continuously improve the quality of casting products on the basis of energy saving and emission reduction. Advantages and disadvantages of induction furnace Advantages of induction furnace 1) Compared with a fuel furnace, it is easy to get high temperatures. 2) It can be heated from the inside of the material to make it warm up. 3) Easy to use in controlled atmosphere furnaces and vacuum furnaces. 4) The electric furna...

Heating Characteristics of Induction Furnace The heating characteristics of medium frequency induction furnace have the following five aspects： 1. Equipment maintenance management It is equipped with water temperature, pressure, phase failure, overvoltage, overcurrent, voltage limit/overcurrent protection, startup overcurrent, and constant current power supply buffer startup to make the machine and equipment start stably, maintain firmly and rapidly, and operate stably; 2. Faster heating speed, less air oxidation and carburization 3. High level of automation technology, the automatic unmanned actual operation can be carried out to develop the work consumption rate; 4. Low energy consumption, zero pollution, high heating efficiency Compared with other heating methods, high-frequency magnetic induction heating furnace reduces energy consumption more reasonably, has a high working consumption rate, zero pollution, and meets the requirements of green environmental protection; 5. Temperat...

Medium Frequency Smelting Furnace Melting Process Requirements  According to the characteristics of the crucible materials used, the melting process of the medium-frequency induction furnace can be divided into two types: the partial alkali crucible smelting method and the acid crucible smelting method. Meta-alkali crucible smelting method can be divided into the melting method and the oxidation method. The acid crucible smelting method is only limited to the melting method.  Due to the low refractoriness of the crucible material, the oxidation process can not be carried out. The alkaline crucible smelting method is the most commonly used smelting method. It can be used for smelting high alloy steel, stainless steel plate, wear-resistant steel, tool and mold steel, electric heating aluminum alloy, precision alloy, corrosion-resistant aluminum alloy, high-temperature alloy, and other types. The application scope of the acid crucible smelting method is small, and it is only lim...

Induction Furnace Dust Removal System The induction furnace dust removal system is equipped with a forward and backward tilting hydraulic flip cover and a rotary side suction dust collector in front of the furnace, which is used to solve the flue gas generated during feeding, smelting, heat preservation, and spheroidization. The dust collection hood of each set of induction furnaces electrotherm is connected to the main dust removal pipeline through movable joints, and the spark catcher is used to extinguish the combustion sparks and remove large particles of high-temperature substances, and then enter the bag filter. After the dust is filtered by the dust collector, it is discharged from the hopper, The net gas is discharged into the atmosphere through the fan and the chimney, and after being filtered by the dust collector, the concentration of the gas discharged into the atmosphere meets the requirements of GB-16297-1996 "Comprehensive Emission Standard of Air Pollutants"....

Fire Sleeve for Induction Furnace The fire sleeve is also called a high-temperature resistant sleeve, silicone rubber fiberglass sleeve. It is made of high-purity alkali-free glass fiber into a tube, and then the outer wall of the tube is coated with organic silica gel and vulcanized. After vulcanization, it can be used for a long time within the temperature range of -65°C-260°C and maintain its soft and elastic properties. Fire sleeves can be used in high-temperature workshops. Many pipes, valves, or equipment have very high internal temperatures. If they are not covered with protective materials, they can easily cause burns or heat loss. The refractory bushing has better thermal stability and resistance to irradiation and thermal insulation than other polymer materials, preventing accidents, reducing energy consumption, and also preventing the heat of the medium in the pipeline from being directly transferred to the surrounding environment and making the workshop The temperature is t...