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induction heater making
2025-01-20
Induction Heating The Group has long pointed out that many factors are involved in the choice of quenching frequency. Higher frequencies (400-500 kHz) are always used when thin surface heating (3-10 kHz; layer depth) is required. In this case, the power supply must be accurately controlled (preferably automatically); accuracy and reproducibility are very important. In the figure, four frequencies used for quenching steel bars are specifically compared. These curves not only give the efficiency of the induction coil, but also take into account the total frequency conversion efficiency. It can be seen that, including the frequency conversion efficiency, several frequencies can be allowed for the same workpiece, except for workpieces with very small diameters. A lot of work has been done on the relationship between power input, quenching depth, frequency and heating time. The figure is based on the work of Lozinski. He mainly did this work for one-time heating. The data in the figure have been simplified to commonly used frequencies. And the quenching temperature is between 850 and 900°C. The quenching depth is mostly between 0.25 and 5 mm. Since only 450 kHz is within this range, 450 kHz is the most widely used frequency. Medium frequency generators...
Induction heating equipment
2025-01-17
Induction heating equipment According to the output frequency of the equipment, it is divided into three categories: audio signal transmission frequency range is 20Hz-20KHz signal, super-audio frequency series frequency 30–80KHZ series, power 7-160KW intermediate frequency series frequency 1K–20KHZ series, power 3-160KW ultra-high frequency series frequency 100KHZ-1.1MHZ series power 3-100KW Product introduction high frequency TXCG series: frequency 100KHZ-1.1MHZ, power 3-100KW super-audio TX series: frequency 30-100KHZ, power 7-160KW intermediate frequency TXZ series: frequency 1-20KHZ, power 15-160KW handheld series: frequency 30-100KHZ, power 10KW, 30KW, 60KW, induction coil lead wire 3–8 meters long; Main applications Main uses of high-frequency and audio equipment: heat treatment of metal parts, quenching of parts, annealing of stainless steel, annealing of copper tubes, hot rolling, etc.; welding of turning tools, milling cutters, drill bits, welding of carbide saw circular saw blades, welding of diamond saw blades, welding of copper tubes, welding of cable joints, welding of communication products; smelting of precious metals, gold, platinum, stainless steel and a small amount of other alloys, etc. Main uses of medium-frequency induction heating equipment: smelting of various metals above 5KG, heat penetration of bars, heat matching, welding, etc.; Handheld equipment: used for online welding of copper plates and copper wire joints of...
Medium frequency induction heating furnace
2025-01-16
Medium frequency induction heating furnace The medium frequency induction heating furnace consists of medium frequency power supply, medium frequency electric furnace body, furnace front control and other parts. The medium frequency power supply is a thyristor medium frequency power supply that converts three-phase industrial frequency AC into DC through a rectifier circuit, and then outputs single-phase medium frequency AC through an inverter circuit to supply the medium frequency induction furnace. Then, using the principle of electromagnetic induction, the workpiece is placed in an alternating magnetic field to generate eddy currents and generate heat to meet the requirements of melting and smelting. At present: the medium frequency induction heating furnace includes 1 ton medium frequency induction heating furnace, 3 ton medium frequency induction heating furnace, 3 ton medium frequency induction heating furnace, and the maximum tonnage is 40 tons medium frequency induction heating furnace Performance characteristics of medium frequency induction heating furnace: 1. Complete equipment protection The whole machine is equipped with water temperature, water pressure, phase loss, overvoltage, overcurrent, voltage limit/current limit, start-up overcurrent, constant current and buffer start, so that the equipment starts smoothly, the protection is reliable and rapid, and the operation is stable; 2. The layout of...
Induction heating furnace related
2025-01-15
Induction heating furnace related Induction heating is used to heat large pieces of metal, the purpose of which is to obtain a completely uniform temperature. There, the high power intensity of induction heating is limited by the rate at which heat is conducted from the surface to the center. Surface hardening takes advantage of this “disadvantage”. The application of induction heating is very important. Although the basic principle of various induction heating methods is the same, there are great differences in the application. The figure shows an example of a part suitable for induction hardening. Examples of parts suitable for induction hardening are treated only in the areas of the part that need to be hardened. By using high frequency to obtain high power density, the heat can be quickly concentrated in a local area. Without affecting the rest of the material, only the metallurgical properties of this area are changed, resulting in a thin surface hardened layer on the part supported by a low brittle center. These maintain a certain strength in the center and high wear resistance on the surface, and there is virtually no deformation of the part during the hardening process. For example, the torsional strength...
Curved pipe anti-corrosion 2025
2025-01-13
Curved pipe anti corrosion As a manufacturer specializing in the R&D, design, and production of 3PE anti-corrosion equipment for steel pipes, Luoyang Hongteng Electrical Equipment Co., Ltd., customers should purchase the company’s 3PE anti-corrosion equipment for steel pipes, whether they want to prevent corrosion for straight pipes or curved pipes. However, there is still a big difference in the anti-corrosion operations for straight pipes and curved pipes. For the anti-corrosion of straight pipes, 3PE anti-corrosion structures are often used. The straight pipes have regular shapes, simple operations, and easy mechanized operations. The 3PE anti-corrosion layer has a three-layer anti-corrosion structure, and its anti-corrosion coating is more uniform, the three-layer adhesion is stronger, and the low-density polyethylene and adhesive layers have better isolation effects on various corrosion conditions in the soil environment, and have stronger impact resistance, deformation resistance, and waterproofing ability, which can effectively solve the anti-corrosion problem of straight pipes. spraying in large diameter steel pipe As an essential component in pipeline construction, the curved pipe has an irregular special geometric shape and cannot be batch anti-corrosion on a continuous operation line like the straight pipe anti-corrosion. Traditional curved pipe anti-corrosion technology has the defects of not matching...
Heating furnace sales
2025-01-10
Heating furnace sales This article will give you a better understanding of our professionalism Heating furnace sales. The title of this chapter is somewhat inaccurate, because it is the temperature of the charge (workpiece) that needs to be controlled, not the temperature of the furnace. Despite this inaccurate title, it is retained in its current form because it has been widely used. According to the requirements of metallurgists, the goal is to bring the surface of the charge to a given temperature and maintain this temperature until a specified temperature uniformity is achieved in the charge, or to change the temperature of the charge according to a specified heating and cooling cycle. In both cases, the uniformity of the charge temperature is required for all parts of the furnace. The interior of the charge should reach a given temperature without exceeding this temperature. The reason is very simple. For each specific process (rolling, forging, bending, extrusion, annealing, heat treatment) and for each specific material, there is a minimum temperature that must be reached for the process to proceed smoothly. Temperatures that exceed the required value by a large amount are not only a waste of heat, but also often have undesirable consequences, such as excessive oxide scale, decarburization...

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