Ki sa ki frekans entèmedyè asouvisman?

Intermediate frequency quenching is to put the metal parts in an induction coil, the induction coil is connected with alternating current to generate an alternating electromagnetic field, and an alternating current is induced in the metal parts. Due to the skin effect, the current is mainly concentrated on the surface of the metal parts, so the surface temperature It is also high. Water spray cooling or other cooling is followed immediately below the induction coil. Since the heating and cooling are mainly concentrated on the surface, the surface modification is obvious, while the internal modification is basically absent, which can have a very special heat treatment effect.