Luoyang HongtengIntermediate frequency induction furnace
In the process of using the induction furnace, it is normal for faults to occur. Correct methods should be used for the judgment and maintenance of faults, which can shorten the maintenance time of the equipment and minimize the impact of equipment failures on production. Therefore, it is necessary for maintenance personnel to constantly sum up experience in peacetime, be diligent in observation, and at the same time master some maintenance skills. Today we will introduce some maintenance skills related to induction furnace failures. First, we need to understand the reasons for the failure of induction furnaces. The best way is to ask the on-site staff, including asking about the fault status of the smelting furnace, including the changes of environmental factors before and after the fault occurs, such as abnormal fluctuations in the switching power supply, load changes, etc. According to the failure description of the melting furnace by the on-site personnel, analyze the reasons that may cause such failures, check the components that may cause the failure, analyze the feasibility of maintenance and repair, and formulate maintenance procedures for the furnace. According to the parts of the damaged induction furnace components, according to the principle of the power...
Induction furnace is a modern smelting equipment, which can achieve rapid heating and heating using the principle of electromagnetic induction heating. And the method of use is also very convenient, so it occupies a place in many smelting equipment. However, when many manufacturers use the intermediate frequency furnace, occasionally the capacitor will burn out. Today, the editor of Hongteng will analyze for you, what are the reasons for the burnout of the induction furnace capacitor? During the use of the induction furnace, if the electric heating capacitor generates heat and smoke, the first thing to check is whether the capacitor has the phenomenon that the cathode is grounded. This phenomenon is generally caused by the breakdown of the capacitor shell caused by poor insulation of the electric heating capacitor. If such phenomenon occurs, the insulation of the capacitor cabinet should be reprocessed. In order to prevent the electric heating capacitor from heating and burning out, the general melting furnace equipment has a cooling system. However, the long-term use of the furnace may cause scale to form in the cooling pipe of the capacitive screen, or the cooling water inlet system may be blocked by debris, which will cause the electric...
In the previous article, we said that the heating principle of the intermediate frequency melting furnace is electromagnetic induction heating. Some friends are very interested in this. Today we will introduce the heating principle of the melting furnace in detail. The method of electromagnetic induction heating is that when the magnetic flux surrounded by the conductor loop changes, an induced potential will be generated in the loop. Similarly, the conductor in the alternating magnetic field will also generate an induced potential under the action of electromagnetic induction. An induced current (eddy current) is formed in the conductor, and the induced current overcomes the resistance of the conductor itself to generate Joule heat. This heat is used to heat the conductor itself to heat up and melt, so as to achieve various thermal processing purposes. Therefore, the basic components of the induction heating system of the melting furnace include induction coils, AC power sources and some workpieces. The coil is connected to the power supply, the power supply provides alternating current for the coil, and the alternating current flowing through the coil generates an alternating magnetic field passing through the workpiece, and the magnetic field causes the workpiece to generate eddy...
As an equipment for casting and hot processing of metals, the melting furnace consists of several parts, such as frequency conversion device, furnace body and furnace control. Its working principle is to convert the three-phase power frequency alternating current into direct current, and then convert the output of the inverter circuit into a single-phase intermediate frequency alternating current, and realize the heat treatment of the metal according to the principle of electromagnetic induction. In order to ensure that the smelting furnace can work efficiently and safely, it is necessary to carry out standardized operation. Today, Hongteng editor will introduce three details about the standardized operation of the smelting furnace. 1. Precautions before opening the furnace The smelting furnace must be inspected for electrical equipment, water cooling system, inductor copper pipes, etc. before the furnace is opened. The furnace can only be opened when these equipments are in good condition to ensure the safety of heat treatment. Determine the person responsible for sending electricity and opening the furnace, and the person in charge shall not leave the post without authorization. During the work, the external conditions of the inductor and the crucible must be supervised to prevent someone from touching the...
The intermediate frequency furnace is the main tool for smelting metal now. The production efficiency of the intermediate frequency furnace is inseparable from the daily maintenance. The editor of Hongteng will introduce the daily maintenance of the intermediate frequency furnace to you. 1. Furnace lining Before each start-up, observe whether there are cracks on the inner surface of the crucible. If the crack width is less than 2mm, it can continue to be used without repairing. Otherwise, it must be repaired before use. When pouring molten steel, observe whether there are cracks at the junction of the side fireplace lining and the tap hole, and whether the furnace lining at the bottom of the furnace and the slag line is partially corroded. If cracks are found, repair them in time. 2. Induction coil Appearance, check the insulation part of the coil once a month for bumps or carbonization, whether there are attachments on the surface, and whether the insulating backing plate is protruding. If any problems are found, deal with them in time. Once a week, visually check whether the coil compression spring is loose and whether the rubber tube is scratched. Check the interface daily for leaks. 3. Furnace...
The intermediate frequency electric furnace is one of the indispensable equipments in the modern foundry industry. It is efficient, fast, convenient and reliable. To ensure the efficient work of the intermediate frequency electric furnace, there is another important existence to support it, that is, the lining of the intermediate frequency electric furnace. The lining of the intermediate frequency electric furnace generally needs to choose high-quality materials with sufficient refractoriness, stable chemical properties, good thermal shock resistance, etc., and the materials that meet these requirements are often expensive. If the furnace lining is replaced early, it will cause a little economic loss, and if the furnace lining is not replaced in time, it may cause the furnace lining to be penetrated by molten iron, and even endanger the safety of equipment and operators in severe cases. It is a very important matter. Today, Xiaobian will popularize it for everyone, and judge the method of lining life of intermediate frequency electric furnace for your reference. 1. Observe the status of each instrument of the electric furnace The easiest way to judge the life of the intermediate frequency electric furnace lining is to observe the condition of each instrument when the intermediate frequency...
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