Ultrasonic Cleaning

While ultrasonic vibrations of enough power level are transmitted in a liquid, cavitation takes place. It has effects on the bulk of solid and liquid and on interface among solid and liquid. Several organic compounds are broken down by cavitation. Therefore, the dirt and grease clinging to solid articles in an ultrasonic cleaning tank are ripped emulsified and apart.

Frequencies of about 30,000 Hz are characteristics of ultrasonic cleaning. Typical fluids utilized are water to which a detergent or solvent such as cyclohexane and trichloroethylene has been added up.

However, Ultrasonic cleaning is more costly than other methods due to initial cost of equipment, and higher maintenance cost. As a result, the use of this procedure is largely limited to applications in which other methods have proved inadequate or unsuitable.