Luoyang HongtengIntermediate frequency induction furnace
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...
Among the induction furnaces produced by our Hongteng, the intermediate frequency furnace has always been a hot-selling product. After a user buys a new furnace, there is a problem that many users have to consider when using it. That is how to control the working temperature of the intermediate frequency furnace. In response to this problem, we have summarized some knowledge and experience here, and shared with you today. It is mainly about the cold start and start-up operation of the intermediate frequency furnace. IF furnace cold start At cold start, the lining material needs to be given enough time to reversibly expand and seal before the molten metal contacts the lining to avoid cracks due to thermal shock. For the intermediate frequency furnace, the temperature of the thermocouple in the middle of the effective coil is to control the temperature, and gas combustion can also be added at the bottom of the furnace to help reduce the temperature difference between the upper part of the furnace and the entire furnace lining. During the cold start process, 3 to 4 K-type thermocouples should be used to detect the temperature, and the thermocouples should be placed close to the furnace wall...
Induction furnace is a product produced by Hongteng for a long time. Today we will introduce the heating of steel by induction furnace. Let’s take heating steel plates as an example. Scope of application of steel plate furnace: heating of railway backing plate, heating of automobile axle casing, heating of blade plate of bulldozer, heating of steel plate, heating of plate belt, heating of automobile leaf spring, heating of blade plate and heating of stainless steel plate, etc. Heating purpose of steel plate heating furnace: mainly for forging, rolling, stamping, extrusion, bending and steel plate quenching and tempering after the steel plate is heated according to the heating process. Features of steel plate heating furnace: 1. Fast heating speed, uniform heating temperature, energy saving and environmental protection, improve the working environment of operators, reduce labor intensity, and greatly improve the heating efficiency of steel plates. 2. The power frequency of the steel plate heating furnace is automatically tracked, the power is steplessly adjusted, the use is simple, the operation is safe and reliable, and the furnace head replacement is convenient and quick. 3. The steel plate heating furnace has high reliability, simple and convenient maintenance, and perfect self-protection functions such...
In the metal heating industry, the medium frequency induction furnace is a kind of equipment that many factories will consider. Because the induction furnace has a complete operation control and measurement device, it can implement automatic control. The thermal efficiency is high, and the temperature control accuracy can reach ±1℃, which can reach more than 95%. And the size of the intermediate frequency furnace can be customized, and users can choose the furnace that suits them according to their needs. The installation of the intermediate frequency furnace is simple. The user buys a new furnace from the manufacturer and can quickly install it himself. Then there is the use of the intermediate frequency furnace. Regarding the safe operation of the intermediate frequency furnace, we are going to tell you some tips today. 1. The operator is allowed to operate the machine only after passing the examination and obtaining the operation certificate. The operator should be familiar with the performance and structure of the machine, and must abide by the safety and shift system. 2. There must be more than two people to operate the IF equipment, and the person in charge of the operation must be designated. 3. First check...
Induction heating in an induction furnace starts with a coil of conductive material such as copper. Current passes through the coil and creates a magnetic field. The magnetic field can change direction depending on the direction of the current. Alternating current through the coil creates a magnetic field that changes in the same direction at the same speed as the current. For example, if the current is 60Hz AC, the magnetic field will switch directions 60 times per second. We can use induction furnaces to smelt precious metals. Then recycle them. Recycling of precious metals involves removing all traces of that metal from another object. The refining process is sometimes performed in conjunction with the recycling process, but it is important to note that recycling precious metals is not the same as refining. Precious metal refining includes techniques such as acid treatment and thermal reduction. But induction melting is considered to be one of the most beneficial ways to fully recover and purify metals. Here are three reasons why induction melting is one of the best ways to recover precious metals: This process is more efficient. Unlike traditional melting systems that take a long time to melt metal, induction melting...
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Small Medium Frequency Induction Furnace
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