Sonomechanics Blog

Degassing (deaeration, in the case of air) is the process of removing dissolved gasses and/or small entrained gas bubbles from a liquid. It is one of the most common applications of ISM's ultrasonic technology, which provides the means of removing the gasses from a variety of liquids, including water, candle waxes, polymers, epoxies, silicone oils, adhesives, coatings, beverages, inks, paints, transformer oils, emulsion and suspension products, motor oils and many more. Degassing can significantly contribute to the quality of the final product (fewer defects, improved aesthetics, etc.), making it a very desirable process for many companies.

In this blog post we demonstrate the processes of ultrasonic degassing and deaeration of a high-viscosity (17,500 cps) polymer oil, carried out in the batch mode.

Liquids exposed to high-intensity ultrasound can undergo acoustic cavitation. This phenomenon can typically be seen as a cloud of bubbles forming in the vicinity of the ultrasonic source (e.g., ultrasonic horn) and heard as an intense hissing noise. Cavitation is the formation of low-pressure voids (a.k.a., vacuum bubbles or cavities) in the liquid, which grow, briefly oscillate and then asymmetrically implode with great intensity.

Are you introducing ultrasound as a new technological solution for your liquid processing application? If so, some terms used in the ultrasonic industry may be unfamiliar. With this in mind, we are launching a series of blog posts that will cover the most common ultrasonic equipment and processing-related terminology.

This first post will focus on the terms used to describe the main components of an Industrial Sonomechanics (ISM) ultrasonic liquid processor and show you how these components work together.