Heating the solution in ultrasonic tank reservoirs affects the quality of ultrasonic cleaning.
In many ultrasonic cleaning systems, the reservoir is equipped with heaters that help increase the temperature of the solution, which improves cleaning efficiency. The heating itself serves a dual purpose. The first purpose of the heater is to warm up the detergent solution, which works more efficiently at higher temperatures, and the second is to accelerate the degassing process of the solution.
When filling the ultrasonic tank reservoir with detergent solution, the solution contains gas molecules (air) that can significantly dampen and interfere with the propagation of ultrasonic waves. The process of expelling trapped air molecules from the solution is called degassing. Degassing is a process that will occur even without increased solution temperature in ultrasonic tanks, but it will take significantly longer time.
When heating the solution during ultrasonic cleaning, it should be noted that temperatures above 60ºC can reduce the effectiveness of the ultrasonic waves. Empirical results have shown that the ideal temperature for ultrasonic cleaning in ultrasonic tanks is between 40 and 55ºC.