Luoyang HongtengIntermediate frequency induction furnace
The intermediate frequency furnace will generate a large number of harmonics in the production process, and these harmonics are very harmful to transformers, voltage switches, and production safety. The harmonics of the intermediate frequency furnace will pollute the harmonics of the power grid, which will reduce the power transmission efficiency, cause insulation aging, and reduce the service life and other faults. The following will be edited by Hongteng to introduce the harm of the harmonics of the intermediate frequency furnace to the transformer. Harmonics increase the copper losses of the transformer, including resistive losses, eddy current losses in the conductors, and stray losses outside the conductors due to leakage flux. The harmonics also increase the iron loss of the transformer, which is mainly manifested in the increase of the hysteresis loss in the iron core. The worse the harmonics make the voltage waveform, the greater the hysteresis loss. Due to the increased loss in the above two aspects, the actual use capacity of the transformer should be reduced, or the harmonic content in the power grid should be considered when selecting the rated capacity of the transformer. In addition, harmonics also lead to the increase of transformer noise. The vibration...
In the production process, an intermediate frequency furnace is often used to smelt and heat metals. The intermediate frequency coreless induction melting furnace adopts an ultra-small intermediate frequency induction heating power supply, which uses the same electromagnetic induction principle as most intermediate frequency furnaces. However, the intermediate frequency coreless induction melting furnace is lighter in weight and can be moved. The following is a detailed introduction to the intermediate frequency coreless induction melting furnace. 1. Principle of intermediate frequency coreless induction melting furnace The core component of the intermediate frequency coreless induction melting furnace is a circular induction coil, commonly known as an induction coil, which is wound by a rectangular copper tube into a spiral shape. The intermediate frequency current is applied to the inductor, then the intermediate frequency alternating magnetic field is generated in the middle and around the induction coil. The alternating magnetic field in the induction coil cuts the metal placed in the induction coil, creating eddy currents on the surface of the metal. The eddy currents generated on the surface of the metal are very large, and such a large current is enough to melt the metal in an instant. Since the alternating magnetic field...
The induction furnace we produce, the heating principle is the use of electromagnetic induction. Therefore, electricity consumption is a very important issue, which directly affects the output of the production line. Generally speaking, electric furnaces with fast melting furnaces are more energy efficient than slow melting furnaces. The same set of equipment, the speed is slower than the power consumption. At the same time, attention should be paid to the timing and compactness of charging, the size of the furnace, etc. All these points can meet the optimal power consumption at the same time. Furnace charging should take into account the ammeter, make the power supply as stable as possible, and maximize the output power of the power supply. Remember that the temperature of the hot metal should be accurately controlled and the temperature of the electric furnace should not be too high or locally too high. This is not good for power consumption and the life of the lining. A good forehearth worker saves electricity and increases efficiency. Select the appropriate furnace power supply. If the electric stove is too large or too small, it may increase the power consumption. The same large electric furnace can quickly save electricity,...
Steel shell induction intermediate frequency furnace is one of our main heating equipment. As an industrial furnace for heating metal, the overall stability of the steel shell furnace is good, firm and not easy to damage, and strong in safety. Our electric furnace generally adopts the principle of electromagnetic induction, so when working, the noise of the furnace body is very low and the working environment is good. The design of the furnace table above the horizontal height makes the charging more efficient. The intermediate frequency electric furnace is carefully designed according to the different requirements of various metal smelting. Users can choose various specifications of induction coils for intermediate frequency electric furnaces, and rationally choose the wall thickness and specifications of copper pipes, so as to improve the utilization rate of electric energy. The exquisite coil design makes the power conversion efficiency, selects the correct cross-sectional shape of the coil for different applications, and also provides more melting energy for thick-walled induction coils. The coil of the intermediate frequency electric furnace is lengthened, which can cover more than 60% of the magnetic field around it, reducing heat loss. The solid coil support design eliminates the possibility of inter-turn short...
Induction furnace The principle of induction melting is that a high voltage power supply from the primary coil induces a low voltage, high current in the metal or secondary coil. Induction heating is just a method of transferring thermal energy. Induction furnaces are ideal for melting and alloying a wide range of metals with minimal melt loss, but they are virtually impossible to refine. There are two main types of induction furnaces: coreless and channel. Coreless Induction Furnace The core of a coreless induction furnace is the coil, which consists of a hollow-section, heavy-duty, highly conductive copper tube that is wound into a helical coil. The coil shape is contained within a steel case and magnetic shielding is used to protect the support case from heating. To keep it from overheating, the coil is water-cooled, and the water is recirculated and cooled in a cooling tower. The housing is supported on trunnions on which the stove is tilted for easy tipping. The crucible is formed by tamping a granular refractory material between the coil and a hollow inner former that melts under the first heat, leaving a sintered lining. The power cabinet converts the voltage and frequency of the mains,...
Before users buy an induction furnace, they need to know some common faults about electric furnace control cabinets. For example, the thyristor in the control cabinet of the electric furnace. Thyristor, also known as thyristor, has switching characteristics of on and off, and is an important component to ensure the normal operation of induction. If the thyristor is overloaded, the components will be damaged and broken down, which will stop the production of the intermediate frequency furnace and affect the normal production efficiency. The editor of Hongteng will introduce to you the faults of the intermediate frequency furnace thyristor and the corresponding solutions. 1. Thyristor breakdown during operation The thyristor cooling water channel is blocked or the water flow is small, the scale in the radiator water cavity is too thick, and the heat conduction is not good, causing the components to overheat. It will cause the thyristor to heat up, increase the turn-off time, and even cause the components to fail to turn off, causing the inverter to overturn and burn the thyristor. The loose connection wire of the current transformer causes the phase change of the composite signal of the circuit formed by the inverter pulse of the...
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