Luoyang HongtengIntermediate frequency induction furnace
When using the furnace, sometimes the induction coil is blocked, which affects the production capacity of the entire production line. Today, Hongteng editor will analyze the reasons and solutions for the blocking of the induction coil of the furnace. There are two common reasons. One is a foreign body blockage. The cooling water source used by the user sometimes directly extracts the river water as the cooling water for the electric furnace. There are many foreign objects in the river water. Therefore, when extracting and using the river water, the foreign objects can easily block the induction coil, resulting in blocked or blocked waterways. Another is limescale clogging. The water source used for cooling is basically natural water with relatively high hardness, and the smelting furnace will generate high temperature when it is working. At this time, when water is used for cooling, it is easy to produce scale attached to the inside of the induction coil copper tube. The composition of scale is basically calcium carbonate and magnesium hydroxide. If it is not treated for a long time, these deposits will become more and more hard. Finally, the sediment will not only block the coil and cause the water...
The furnace lining plays a very important role in the operation of the melting furnace, and there are many types of furnace linings. Common furnace linings include acidic furnace lining, neutral furnace lining, and basic furnace lining. So, is there any good way to choose suitable furnace lining materials? The editor of Hongteng made some summaries for you today. 1. The furnace lining must have a certain high temperature strength In the smelting process, the furnace wall is subject to the impact force of the metal charge, the static pressure of the molten metal, the force of the electromagnetic stirring of the molten metal, the temperature difference stress, etc., which will affect the service life of the lining of the smelting furnace, so the lining material should have A certain high temperature strength, no cracking and erosion resistance under the action of various forces. 2. The refractoriness of the furnace lining should be excellent When the smelting furnace is in operation, the temperature of molten steel can reach 1700℃ or above, and the temperature of molten iron can reach above 1500℃. Therefore, the furnace lining material should have excellent refractoriness, and the furnace lining material that meets the melting temperature...
When the induction furnace is working, sometimes the power of the equipment does not meet the standard, which will increase the time for melting and processing of the furnace body and affect the efficiency and quality of equipment production. So, do you know the factors that affect the power of the induction furnace, and is there any way to increase its power? Today we will give you a brief summary. 1. The rectifier part of the induction furnace is not properly adjusted, the rectifier tube is not fully turned on, and the DC voltage does not reach the rated value. At this time, the trigger circuit of the induction furnace rectifier circuit should be adjusted in time. 2. If the intermediate frequency voltage value is adjusted too high or too low, it will affect the power output. At this time, the intermediate frequency voltage needs to be adjusted to a suitable value. 3. Improper adjustment of the cut-off and cut-off values of induction furnace operation will also reduce the power output of the furnace body. At this time, the cut-off and cut-off values of the induction furnace should be re-adjusted. 4. Only the supporting intermediate frequency power supply and furnace...
In the metal heat treatment industry, smelting furnaces are often used exclusively for the treatment of scrap steel. Today, Luoyang Hongteng editor will introduce to you a steel melting furnace with a capacity of 500kg. basic requirements 1. Capacity: 500Kg 2. Melting temperature: 1700℃ 3. Power supply configuration: series resonant intermediate frequency power supply 4. Tilting furnace method: reducer tilting furnace 5. Cooling method: closed cooling tower 6. Melting power: 400Kw 7. Frequency: 1000Hz 8. Power consumption of melting furnace: 550Kwh/T Internal protection 1. Power protection: including main circuit short circuit, phase loss protection, high grid voltage, low protection, high cooling water temperature, low water pressure, low cooling water flow protection, thyristor overvoltage, overcurrent protection, DC through protection, inverter pass-through protection, etc. 2. Limits on the numerical limits of key parameters, such as full power limit; induction coil overvoltage limit; output current limit; frequency limit; semiconductor component turn-off time limit. Furnace body The furnace body of the smelting furnace is composed of steel furnace shell welded by section steel, tilting furnace mechanism of reducer, induction coil, refractory cement, etc. The tilting mechanism adopts a reducer system, and is equipped with position and angle sensors to provide signals to the PLC....
The water cooling system is a very important supporting equipment in the use of the metal smelting furnace. Today we know some information about the water cooling system. The parts that need water cooling are: intermediate frequency power supply (generator set and thyristor frequency conversion device, of which the cooling water for thyristor frequency conversion device needs to be softened), inductors, capacitors, flexible cables, etc. In order to save water, we usually adopt the method of circulating cooling. The cooling water circulation system includes water pump, closed cooling tower, water tank, etc. The importance of the circulating water system: The smelting furnace facility is a high-power power electronic device. Important components such as thyristors, smoothing reactors, capacitors, induction coils, and water-cooled cables all require water cooling. The inner diameter of many cooling pipes is only about 8mm. If the power of the electric furnace is small, only the circulating water pool can be used. For electric furnaces with higher power, the method of circulating water pool and cooling tower should be adopted. When designing, it is necessary to separate the circulating water of the electric furnace and the electric cabinet, because the water temperature of the electric furnace is about...
When the induction furnace is working, it is easy to cause accidents such as splashing due to the presence of moisture on the crucible wall, burying hidden dangers for the personal safety of operators. How to avoid similar dangers from happening? A very common practice is to preheat, and today we will give you a brief introduction. The first is the preheating process. 1. When using an induction furnace, preheat the crucible to about 200°C for 30 minutes without adding material, and dry it for 60 minutes. This is to allow the surface moisture of the crucible to volatilize and prevent bursting in the initial stage of use. 2. After preheating, the crucible should be heated to 900℃-1000℃ (about 2 hours) as soon as possible, keep the temperature for 20-30 minutes, and then return to the temperature when the metal needs to be smelted. This is done so that the crucible can quickly pass through temperature areas prone to oxidation. 3. After each preheating, it is only necessary to keep the electric furnace running. Unless the furnace is stopped or the crucible is damped again, there is no need to preheat again. There are also some inspection notes. 1. Carefully...
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