Quenching medium commonly used in induction hardening of high frequency quenching equipment

Quenching medium is also called quenching agent. The commonly used quenching medium in induction quenching of high frequency quenching equipment is water and quenching liquid.

Water is generally suitable for carbon steels with a carbon mass fraction of less than 0.47%, as well as low hardenability steels with high carbon content but low Mn, low alloying elements Cr, Cu, and Ni.

For low-alloy steels containing a certain amount of Cr, Mn, Ni and other elements, since these steels require a low critical cooling rate for quenching, a quenching fluid with a lower cooling rate, such as oil or a quenching fluid with polymer as an additive, can be used. . The main function of using quenching fluid is to reduce quenching stress and prevent quenching cracking and deformation.