Ultrasonics Overview Ultrasonic cleaning uses the energy generated by sound waves to create cavitation bubbles in a liquid. The vibration and collapse of these bubbles create a scrubbing action that is very effective for removing many contaminants. This is an effective process that can be used in many industries. An ultrasonic system requires a tank, transducer(s), an ultrasonic generator, and a cleaning liquid. Tanks can be sized to fit almost any part. Transducers can be bonded to the outside of the tank on the bottom or sides. Submersible transducers can be set inside the tank. This allows the addition of ultrasonic cleaning to an existing tank, such as a vapor degreaser. The cleaning liquid can be water- or solvent-based. Cleaning agents can be added to improve cleaning efficiency. An ultrasonic system may cause erosion of almost any material. Cleaning efficiency will be affected by cleaning time, fixture design, part shape, chemical additives, and temperature. Some liquids do not cavitate well in normal ultrasonic equipment. State Information | Glossary | Conversion Checklist | Comments Home | Process Advisor | Alternatives | Links | Search All SAGE material, Copyright© 1992, Research Triangle Institute Last Update: 18 March 1995 sage@rti.org http://clean.rti.org/alt.cfm?id=ul&cat=ov