Difference between UHF,HF,RF and MF induction heaters

2013/12/15 From: Local  Views

Download PDF: Difference between UHF,HF,RF and MF induction heaters
TypeUHF(Ultra-high Frequency)HF(High Frequency)RF(Radio Frequency)MF(Medium Frequency)
Frequency>=100 KHz30KHz~100KHz20KHz~80KHz5KHz~20KHz
BasedIGBT or MOSFET or SiCIGBTIGBTIGBT or SCR
Cooled TypeWaterWater or AirWater or AirWater or Air
Application DescriptionUltra-high frequency induction heaters are often used for quenching or hardening work, higher output frequency will bring thinner hardening depth and faster heating speed (some applications need 0.1mm~2mm hardening depth, then only ultra-high frequency machines can satisfy these works).High frequency induction heaters are often used for brazing, jointing , normal quenching or small forging work.Radio frequency induction heaters are often used for hardening, brazing, welding , normal quenching, forging and forging work.Medium frequency induction heaters are often used for forging or melting or big depth quenching work.
Samples



induction brass soldering copper plate_2




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