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~20KHzBasedIGBT or MOSFET or SiCIGBTIGBTIGBT or SCRCooled TypeWaterWater or AirWater or AirWater or AirApplication Descrip…

suRFace hardening of steels

Selective hardening is applied because of one or more of the following reasons:(1) Parts to be heat-treated are so large that conventional furnace heating and quenching becomeimpractical and uneconomical - examples are large gears, large rolls and dies;(2)…

induction suRFace hardening of steel

High-level surface heating of a thermo technically massive body, when the cooling of the surface to be hardened happens due to abstraction of heat into the body so that the hardening medium is not required, is of both practical and theoretical interest. Ti…

main circuit of um-25_40_60 RF-hf induction machine

main circuit of UM-25_40_60 RF-HF induction machine

effect of suRFace hardening by high frequency induction heating

Surface hardening of carbon steel by high frequency induction heating (HFIH) produces a considerable increase in its resistance to stress corrosion [1, 2]. The magnitude of this increase depends on the depth of surface hardening, on the strength of the spe…