A Novel Approach toThermistor Control of Quench Oil Temperature

Abstract

This paper concerns the simulation study and mathematical calculation for thermistor control of Quench Oil Temperature using Proteus simulation software. In Industrial processes to impart the proper metallurgical qualities in a metal, heat treated metal parts are quenched in either oil or water. The parts are immersed in a bath of quench oil as soon as they leave the heat treating chamber. The motor driving the re-circulating pump is a series universal motor. The average voltage applied to motor terminals determines its speed of rotation. Since the motor drives the pump, the rotational speed of the motor determines how much oil re-circulates and thereby determines the amount of cooling that takes place. As the motor speeds up, more oil re-circulates, and the oil in the tank tends to cool down. As the motor slows down, less oil re-circulates, and the oil in the tank tends to warm up.