Roll hardening by high frequency induction hardening machine

The roll is an important part of the rolling mill in the rolling mill. It uses the pressure generated by a pair or a group of rolls to roll and roll the steel. During the working process, the rolls are mainly subjected to dynamic and static loads, wear and temperature changes during rolling. Therefore, rolls are usually required to have high hardness, wear resistance and service life. For this reason, we often use high-frequency induction hardening machines for quenching heat treatment, and the effect is very good.

The roll is quenched and heat-treated by a high-frequency induction hardening machine. The quenching temperature is usually 800-900°C, and the quenching medium is water. After quenching, the hardness of the roll reaches 60-65HRC, and the service life is greatly improved, which is 2-3 times that of non-quenching. 

When the high-frequency induction hardening machine performs quenching heat treatment on the roll, the heating speed is very fast, which effectively avoids the oxidation and decarburization of the roll during the quenching process, and ensures the quenching effect of the roll. We all know that the high-frequency induction hardening machine mainly performs quenching heat treatment on the roll through the sensor, and the sensor can be replaced freely, which enables the equipment to perform quenching heat treatment on the roll of different specifications, which can meet the heating requirements of different workpieces of customers, making Customers no longer need to worry about purchasing multiple devices, saving production costs.