Induction heating machine is very common in metal heat treatment equipment. When selecting this equipment, it should be distinguished according to power. The most common types are summarized as follows:
At present, induction heating equipment can be divided into these four types mainly according to the output frequency:
1. Low frequency induction heating equipment:
The frequency is the lowest, and the frequency range is about power frequency (50Hz) to 1kHz. Most commonly used frequencies are power frequency. The relative heating depth is the deepest and the heating thickness is the largest, about 10-20mm;. It is mainly used for overall heating, annealing, tempering and surface quenching of large workpieces. ?
2. Medium frequency induction heating equipment:
Frequency range: generally about 1kHz to 15KHz, and the typical value is about 8kHz. The heating depth and thickness are about 3-10mm. It is mainly used for heating, annealing, tempering, quenching, tempering and surface quenching of large workpieces, large diameter shafts, large diameter thick wall pipes, large modulus gears and other workpieces, as well as red stamping and forging of small diameter bars. ?
3. High frequency induction heating equipment:
Frequency range: generally 40KHz to 200kHz, commonly 40KHz to 80kHz. Heating depth and thickness, about 1-2mm. It is mainly used for deep heating, red stamping, forging, annealing, tempering, quenching and tempering, surface quenching of small workpieces, heating, welding and hot assembly of medium diameter pipes, pinion quenching, etc. ?
4. UHF induction heating equipment, usually with a frequency of more than 200K} Hz. ?
The frequency is relatively highest, and the frequency range is generally above 200kHz, up to tens of MHz. The minimum heating depth and thickness is about 0.1-1mm. It is mainly used for quenching and welding of local very small parts or very fine bars, surface quenching of small workpieces, etc.