Ultrasonic Herb Extraction Machine uses ultrasonic waves to compress and expand rapidly alternately when encountering objects. Under the action of ultrasonic wave, when the material expands for half a cycle, the material liquid phase stretches and bubbles expand; During the half cycle of compression, the bubbles shrink. When the pressure and pressure change under low pressure, the bubbles in the compressed air will collapse, and a "hole" phenomenon will appear in the material liquid. This phenomenon will disappear with the change of pressure and the imbalance of external pressure. It will disappear at the "hole" moment, resulting in high pressure and high temperature of the surrounding liquid, which plays a very complex and powerful mechanical mixing role, to achieve uniformity.
link:https://www.weldultrasonic.com/ultrasonic-extraction/ultrasonic-herb-extraction-machine.html