Product Brief
The series resonance adopted by the intermediate frequency induction heating equipment, that is, voltage-type resonance frequency tracking. Therefore, the efficiency is higher and the power factor is higher. Therefore, it has obvious power-saving effect, heating 340 degrees per ton of bar stock. The intermediate frequency induction heating equipment is not controlled by the full-bridge rectifier in the front stage, it will not cause the waveform deformation in the rectifier section, there is no clipping phenomenon of the cut-off angle, and it is filtered by a large capacitor, so the small number of harmonics has little interference to the power grid
working principle
The working principle of the medium frequency induction heating equipment is to place a metal cylinder in the induction coil with alternating intermediate frequency current. The metal cylinder does not directly contact the induction coil. The temperature of the energizing coil itself is already very low, but the surface of the cylinder is heated To redness, or even melting, and the speed of this redness and melting can be achieved by adjusting the frequency and the strength of the current.
IF advantage
With the rapid development of China's industrialization process, the field of induction heating has also developed rapidly. Due to environmental protection requirements and coal price increases, heating with coking coal not only does not meet environmental protection requirements, but also is very uneconomical in price and economy. On the other hand, At present, industrial heating is also using a large number of KGBS thyristor-based intermediate frequency heating equipment. Low power factor consumes a lot of electrical energy. With the financial crisis's prolongation, energy saving and consumption reduction, cost reduction has become a very urgent problem for SMEs . So we use the years of experience in induction heating to successfully develop IGBT series energy-saving intermediate frequency.
Features
1. Simple production operation, flexible feeding and discharging, high degree of automation, can realize online production;
2. The workpiece has fast heating speed, less oxidative decarburization, high efficiency and good forging quality;
3. Workpiece heating length, speed, temperature, etc. can be accurately controlled;
4. The workpiece is heated uniformly, the temperature difference between the core surfaces is small, and the control accuracy is high;
5. The sensor can be elaborately produced according to customer requirements;
6. All-round energy-saving optimization design, low energy consumption, high efficiency, lower production cost than coal burning;
7. Meet the requirements of environmental protection, less pollution, but also reduce the labor intensity of workers.
Product advantages
Saving features
● Fast heating speed, high production efficiency, less oxidation decarburization, saving materials and forging die cost. Because the principle of intermediate frequency induction heating is electromagnetic induction, its heat is generated in the workpiece itself. Ordinary workers can use the intermediate frequency electric furnace to work after ten minutes The continuous work of the forging task does not require furnace professional workers to perform furnace and seal furnace work in advance. There is no need to worry about the waste of the coal furnace's heated billets due to power outages or equipment failures. Due to the rapid heating rate of this heating method, there is very little oxidation, and at least 20-50 kg of steel raw materials are saved per ton of forgings and coal-fired furnaces, and the material utilization rate can reach 95%. Due to the uniform heating of this heating method and the extremely small temperature difference on the core surface, the life of the forging die is also greatly increased in forging, and the roughness of the forging surface is also less than 50um.
Environmental protection features
● Excellent working environment, improve workers' working environment and company image, no pollution, low energy consumption Compared with coal stoves, induction heating furnaces will not allow workers to be exposed to the baking and fumigation of coal stoves under the hot sun, but also meet the requirements of various indicators of environmental protection departments, while establishing the company's external image and the future development of the forging industry trend. Induction heating is the most energy-efficient heating method in electric heating furnaces. The power consumption per ton of forgings heated from room temperature to 1100 ° C is less than 340 degrees.
Precision features
● Uniform heating, minimal temperature difference on core surface, high temperature control accuracy Induction heating generates heat in the workpiece itself, so the heating is uniform, and the temperature difference on the core surface is extremely small. The application of temperature control system can achieve precise temperature control and improve product quality and pass rate.
Other features
The medium frequency furnace heating device has the advantages of small size, light weight, high efficiency, excellent thermal processing quality and favorable environment. It is rapidly eliminating coal-fired furnaces, gas furnaces, fuel oil furnaces and ordinary resistance furnaces. It is a new generation of metal heating equipment. The intermediate frequency furnace is the main equipment of the casting and forging and heat treatment workshop. The stability, reliability and safety of its work are the guarantee of the normal and stable operation of the casting and forging and heat treatment production line of the pipeline operation. The intermediate frequency furnace has a good development prospect in the field of thermal processing. For example, it mainly produces pre-forging heating furnaces, diathermy furnaces, and induction heating for: diathermy, rolling, forging, bending, heat treatment (quenching), welding, etc. .
Safe operation
2. Industrial frequency induction heating equipment uses industrial electric frequency, low voltage and large current to heat and quench or normalize large workpieces. The rules for safe electricity use should be followed when using.
3. In order to prevent the large work piece from bursting and hurting people during induction heating with power frequency, it is necessary to strictly abide by the power frequency heat treatment operation regulations and the corresponding large heat treatment technology regulations during operation. Ultrasonic flaw detection should be carried out piece by piece on large workpieces. When flaws are found, such as white spots, severe segregation and looseness, it is prohibited to use power frequency equipment for heating. The work piece should remove burrs, iron filings and oil stains to prevent arcing. In production operation, the person in charge must be appointed, and the operator must be familiar with and abide by the operating regulations of power frequency equipment.
