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目前显示的是标签为“induction furnace manufacturers”的博文

The working principle of medium frequency heating furnace

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Huaxin Electric Furnace is one of the excellent induction furnace manufacturers in China. After nearly 30 years of production practice, the following rules have been summarized The medium frequency heating furnace is an induction heating device for the purpose of heating metal forging or quenching and tempering heat treatment. When used for heating before forging, the heating temperature is generally 1200 degrees, and when used for quenching and tempering heating, the heating temperature is generally within 1000 degrees. The purpose of this medium frequency heating determines that the heating of the medium frequency heating furnace is only for heating, not for melting the metal. Therefore, the medium frequency heating furnace is different from other types of heating furnaces in terms of structure and principle. 1. The basic principle of the medium frequency heating furnace is electromagnetic induction heating, which follows the electromagnetic effect theory, such as electromagnetic ...

What are the advantages of medium frequency electric furnaces?

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Huaxin Electric Furnace is one of the excellent induction furnace manufacturers in China. After nearly 30 years of production practice, the following rules have been summarized: 1. The induction heating equipment of the medium frequency electric furnace is fully protected Medium frequency electric furnace induction heating equipment is equipped with water temperature, water pressure, phase loss, overvoltage, overcurrent, pressure/current limiting, start overcurrent, constant current and buffer start so that the equipment starts smoothly, the protection is reliable and rapid, and the operation is stable; 2. Medium frequency electric furnace induction heating equipment has fast heating speed and less oxidation and decarburization Since the principle of induction heating is electromagnetic induction, the heat is generated by the workpiece itself. The heating method of the induction heating equipment of the medium frequency electric furnace has a fast heating speed, minimal oxidati...

Brief introduction of water-cooled cable for medium frequency electric furnace

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Huaxin Electric Furnace is one of the excellent induction furnace manufacturers in China. After nearly 30 years of production practice, the following rules have been summarized: The water-cooled cable in the medium frequency electric furnace is a special cable connecting the medium frequency power supply and the induction coil. Because the inside of the cable can pass water to achieve the effect of cooling and cooling, it is called a water-cooled cable. Although the water-cooled cable used in the medium frequency electric furnace is also carrying current, its internal structure is different from that of ordinary cables. The water-cooled cable used in the medium frequency electric furnace is composed of electrodes, copper-stranded wires, insulating hoses, water nozzles, and stainless steel hose clamps. The electrode is made of copper rods and is connected to the copper stranded wire for cooling. The insulating rubber tube is sleeved outside the copper-stranded wire and fastened to t...

What are the safety protection measures for medium frequency induction furnaces?

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Huaxin Electric Furnace is one of the excellent induction furnace manufacturers in China. After nearly 30 years of production practice, the following rules have been summarized: 1. Hydraulic system: The hydraulic system of the medium frequency, coreless induction furnace is used to pour molten metal out of the furnace, and to open and close the furnace cover. To ensure reliable work, the hydraulic station of the electric furnace should be equipped with two main pumps of the same specification (one for use and one for backup). The inlet end of the tilting furnace hydraulic cylinder needs to be equipped with a throttle valve to prevent the furnace body from falling suddenly due to the loss of pressure in the hydraulic system. When the power supply is interrupted for a long time, the molten metal in the electric furnace may cool and solidify. This situation may damage the furnace lining. It is very dangerous to melt the solidified metal in the furnace by operating the electric furnace. ...

What are the main features of the 500 kg steel shell smelting furnace?

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Huaxin Electric Furnace is one of the excellent induction furnace manufacturers in China. For this relatively light steel shell furnace, the main features, in summary, are: light equipment, fast heating speed, high efficiency; particularly power saving, the same load power consumption can save up to 60% compared with the tube high-frequency machine; Various protection functions such as overcurrent, overvoltage, overheating, etc., are simple to operate and easy to install and are suitable for various occasions where metal heating is required. :   (1) Simple operation process, reliable smelting operation   (2) The metal composition is uniform and the material is well controlled   (3) The equipment is small in size, light in weight, high in efficiency, and low in power consumption   (4) The temperature around the furnace is low, there is no smoke and dust, and the working environment is good   (5) The pulse transformer is packaged with special glue, completely isolated from the outside,...

What are the product advantages of medium frequency induction heating equipment?

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Saving features Fast heating speed, high production efficiency, less oxidation, and decarburization. Because the principle of medium frequency induction heating is electromagnetic induction, the heat is generated in the workpiece itself, and ordinary workers can use the medium frequency electric furnace to forge ten minutes after going to work The continuous work of the task does not require a professional furnace burning workers to perform furnace burning and sealing in advance. There is no need to worry about the waste of heated billets in the coal furnace caused by power outages or equipment failures. Because this heating method has a fast heating speed, there is very little oxidation. Compared with the coal-fired furnace, each ton of forgings can save at least 20-50 kilograms of steel raw materials, and its material utilization rate can reach 95%. Because this heating method heats uniformly and the temperature difference between the core and the surface is extremely small, the lif...

How to maintain the induction heating coil?

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Induction coil, I believe everyone who knows induction heating equipment knows that induction coil is an important part of induction heating equipment , and it is an indispensable part of induction heating equipment to heat the workpiece. Whether the routine maintenance of the induction coil is in place is related to the service life of the induction heating equipment and it also determines the heating quality of the workpiece to a large extent. Therefore, it is very necessary to carry out the routine maintenance of the induction coil. The routine maintenance of the induction coil of the induction heating equipment mainly includes visual inspection, coil compression screw, rubber tube, coil anti-corrosion joint, cooling water temperature at the coil outlet, dust removal, etc. 1. Visual inspection Check the appearance of the induction coil of the induction heating equipment, mainly to check whether the insulation part of the coil is damaged or carbonized, whether there is foreign ...

How to check the system of medium frequency induction heating equipment

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Medium frequency induction heating equipment uses the principle of electromagnetic induction to generate eddy currents in the workpiece placed in the induction coil so that the workpiece is heated and heated to the desired temperature. The equipment adopts series resonance or parallel resonance, so the power factor is relatively high. Compared with traditional heating methods, it has the advantages of high efficiency and low pollution. This equipment is widely used in forging and metal heat treatment industries. Medium frequency induction heating equipment has a wide range of applications in the fields of diathermy, smelting, quenching, welding, etc. However, due to the large power of the equipment, the electronic components are prone to malfunction due to overheating. How can people perform system inspections on the heating equipment? Huaxin Electric Furnace is one of the excellent Chinese induction furnace manufacturers . After years of production practice, the following work experi...

How to overhaul the medium frequency induction heating equipment that is abnormally reflected after startup?

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 The working principle of medium frequency induction heating equipment is to place a metal cylinder in an induction coil with alternating medium frequency current. The metal cylinder does not directly contact the induction coil. The temperature of the energized coil itself is very low, but the surface of the cylinder is heated to Redness, even melting, and the speed of this redness and melting can be achieved by adjusting the frequency and the strength of the current. Medium frequency induction heating equipment has a wide range of applications in the fields of diathermy, smelting, quenching, welding, etc. However, due to the large power of the equipment, electronic components are prone to malfunction due to overheating. How to deal with an abnormal response after startup, here are several situations. (1) Phase failure of the rectifier: the fault is manifested as abnormal sound during operation, the maximum output voltage rises below the rated value, and the power cabinet will ...

How to reduce the power consumption of the medium frequency electric furnace?

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The power consumption during the use of the medium frequency electric furnace is very large, so the company will find ways to reduce the power consumption when using it, to reduce the production cost of the company. The following describes the ways to reduce the power consumption. 1. The layout is reasonable. The overall layout of the electric furnace should be as small as possible under the premise of ensuring the reasonable operation of the workers, so that the overall connection line will be shortened, which will reduce the heat and electricity loss and achieve the purpose of reducing power consumption. 2. The material used should be as large as possible to ensure the smooth flow of current to prevent the copper bus from being too small, causing heat, which will take away a part of the electricity. 3. Workers must be diligent, continue to add materials and assist in stirring steel, increase the smelting speed, and save electricity consumption. 4. The technical content of th...

What should I pay attention to when using the medium frequency melting furnace?

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The medium frequency smelting furnace uses the principle of electromagnetic induction to convert electrical energy into heat. It is highly efficient, energy-saving, and environmentally friendly, and has great potential for future development. However, to make the furnace operate efficiently in daily use, the following precautions must be taken.    Precautions for maintenance    During the medium frequency induction melting furnace maintenance, the medium frequency generator room should be kept clean, and it is strictly forbidden to stack flammable and explosive materials. Repair the furnace with excessive melting loss in time, avoid mixing of impurities when repairing the furnace, and ensure the compactness of the crucible.    Precautions before opening the furnace The medium frequency induction smelting furnace must be checked for electrical equipment, water cooling system, inductor copper pipes, etc. before the furnace is opened. The furnace can only be opened when these devices ar...

What are the main components of a medium-frequency electric furnace?

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Medium frequency electric furnace is the main equipment for casting and forging and heat treatment workshops, with stable performance, safety, and reliability, and is the first choice for flow-through casting and forging and heat treatment production line equipment. It has a good development prospect in the field of heat treatment. The following is a brief introduction to the structure of some medium frequency electric furnaces.  First of all, the complete range of medium-frequency electric furnaces, power supplies, and electrical components, power equipment includes high-voltage or low-voltage switch cabinets, medium-frequency power supplies (medium-frequency generator sets or thyristor inverters), power conversion switches, compensation capacitors, and medium-frequency control cabinets, etc., large-scale medium-frequency electric furnaces Parts also include a leaking furnace alarm system. Furnace part: medium and small electric furnace is equipped with two furnace bodies. One is...

Advantages of medium frequency furnace in energy saving and environmental protection

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In the smelting industry, if you say which smelting equipment is the most recommended, I believe many people in the industry will recommend medium-frequency furnaces. Compared with other smelting furnaces, the medium frequency furnace has many advantages, but the most important thing is the advantages of the medium frequency furnace in energy saving and environmental protection. In terms of energy-saving and cost reduction, the medium frequency furnace works on the principle of electromagnetic induction heating, which generates heat through electromagnetic induction, and the heating speed is very fast. The general heating equipment is to heat the container to achieve the purpose of heating the material contained in the container, but the medium frequency furnace directly induces the heating of the material. Take a medium frequency smelting furnace as an example. Put the metal material in a quartz crucible. Because there is resistance in the metal material, while the quartz crucible ...

Induction coil of medium frequency induction furnace

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 The induction coil of the medium frequency heating furnace is the inductor of the medium frequency furnace. As the load of the medium frequency heating furnace, a rectangular copper tube is wound into a spiral shape according to a certain number of turns. Through the alternating current, an induced magnetic field is generated to achieve the purpose of heating the metal. The induction coil of the medium frequency heating furnace has a great influence on the heating effect. Next, I will briefly introduce the basic knowledge of the induction coil, I hope it will be helpful to everyone. 1. The induction coil heating of the medium frequency heating furnace follows the following electromagnetic induction effects: ring effect, skin effect, sharp corner effect, proximity effect. 2. The function of the induction coil of the medium frequency heating furnace is to transfer the induction current and then achieve the purpose of heating the workpiece. The induction coil is an important par...

What are the effective principles of intermediate frequency induction furnace heating?

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 A medium frequency induction furnace is a metal induction heating equipment, which is widely used in metal thermal processing in various industries, such as heating before forging, casting heating, metal quenching and tempering heating, hot stamping heating, hot extrusion heating, etc. In the medium frequency induction furnace, the metal workpiece is put into the inductor coil of the medium frequency induction furnace and the frequency conversion current is generated through the medium frequency induction power cabinet and sent to the induction coil. This frequency conversion current with a certain frequency flows in the spiral copper tube of the induction coil, Produce alternating magnetic field. According to the right-hand rule of middle school physics, induced currents (eddy currents) with the same frequency and opposite directions will be generated inside the metal workpiece. According to Joule Lenz's law due to the flow of eddy currents, a certain amount of heat will be ge...

What are the advantages of medium frequency induction furnaces?

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A medium frequency induction heating furnace is a power supply device that converts 50HZ AC power into medium frequency (from 300HZ to 1000HZ). Since the principle of medium frequency induction heating is electromagnetic induction, its heat is generated in the workpiece itself. Ordinary workers use a medium-frequency electric furnace after going to work. The continuous work of the forging task can be carried out in ten minutes, without the need for professional furnace firing workers to perform furnace firing and sealing work in advance. Due to the fast heating speed of this heating method, there is very little oxidation. The oxidation burning loss of the medium frequency heating forging is only 0.5%, the oxidation burning loss of the gas furnace heating is 2%, and the coal-burning furnace reaches 3%. The medium frequency heating process saves materials. Compared with coal-fired furnaces, a ton of forgings can save at least 20-50 kilograms of steel raw materials. The medium frequency...

Aluminum alloy smelting method and process flow

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 The smelting methods used in the domestic aluminum industry generally include batch smelting and semi-continuous smelting. The batch smelting method refers to a smelting method that takes one smelting time as a cycle, from the beginning of furnace loading, melting to the end of refining and downturns. This method is most suitable for the production of finished alloys with higher quality requirements but not too large batches to ensure the accuracy and uniformity of the chemical composition. The semi-continuous smelting method refers to the same alloy as a production cycle, each time the output is only one-half to one-third of the total melt in the furnace, and then a little more new charge than the above is added to continue melting. Generally, pure aluminum products, 6063 building materials products, and alloy products with recycled waste as the main charge are all smelted by this method. The typical melting process of wrought aluminum alloy is as follows: furnace preparation →...

Medium frequency electric furnace selection model

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 With the continuous development of the manufacturing industry, new materials and new processes are constantly being used, and the requirements for the selection of medium-frequency electric furnace models are also constantly improving. For medium-frequency electric furnaces, there are strict requirements in terms of function, energy conservation, and environmental protection. As a result, the reliability, technological advancement, and after-sales service of medium-frequency electric furnaces have higher standards. There are some principles to pay attention to when choosing the model of the medium frequency electric furnace. In other words, before determining the power and manufacturer of the medium frequency electric furnace, the following conditions and factors about the medium frequency electric furnace must be considered: 1. The medium-frequency electric furnace is energy-saving and environmentally friendly, with an average power consumption of about 600kW.h per ton. It i...

Why the dumping design of the medium frequency melting furnace?

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     The inductor of the medium frequency diathermy furnace is designed according to the length of the heated workpiece and the diameter of the workpiece, so the inductor has lengths and shorts. But in general, the medium frequency diathermy inductor is generally relatively long (referring to the axial direction of the heated workpiece), and its purpose is to ensure that the heating temperature and the temperature difference between the core and the surface meet the requirements under the condition of the heating workpiece tempo unchanged. There are basically two types of lining assembly for medium frequency heating inductors, one is knotted lining, and the other is assembled lining. Whether it is knotted lining or fabricated lining, long-term work under high temperature will change (mainly thermal expansion and contraction and oxidation). If used improperly, the heating material will collide and squeeze the furnace lining phenomenon, so the use of the furnace lining has a certa...

Four major components of medium frequency electric furnace

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  Medium frequency electric furnace is commonly used equipment in the field of heat treatment. Medium frequency electricfurnace is mainly composed of four parts. Power supply and electrical part: power supply equipment includes high-voltage or low-voltage switchgear, medium frequency power supply (medium frequency generator set or thyristor inverter), power conversion switch, compensation capacitor and medium frequency control cabinet (distribution console in front of the furnace), etc., The electrical part of the large medium frequency furnace also includes a crucible leak alarm system. Furnace body part: medium and small medium frequency furnaces are equipped with two furnace bodies. One is used for production and the other is spare. The furnace body includes a furnace cover, an inductor, a crucible, a furnace body bracket, etc. Transmission device: The transmission device includes mechanical or hydraulic devices such as the movement of the furnace cover and the tilting an...