The current frequencies commonly used in yuqori chastotali söndürme uskunalari bo’ladi:

1. Yuqori chastotali isitish: 100～500KHZ, tez-tez ishlatiladigan 200～300KHZ, bu elektron quvur turi yuqori chastotali isitish, qattiqlashtiruvchi qatlam chuqurligi 0.5 ~ 2.5 mm, kichik va o’rta o’lchamli qismlarga mos keladi.

2. 2. Intermediate frequency heating: The current frequency is 500～10000HZ, usually 2500～8000HZ. The power supply equipment is a mechanical intermediate frequency heating device or a silicon controlled intermediate frequency generator. The depth of the hardened layer is 2-10 mm. Suitable for large diameter shafts, medium and large gears, etc. 3. Power frequency heating: The current frequency is 50HZ. Using mechanical power frequency heating power equipment, the depth of the hardened layer can reach 10-20mm, which is suitable for surface quenching of large-diameter workpieces.