What is ultrasound? When scientists studied the dialogue between dolphins and the flight orientation of bats at night, they found that they use a kind of sound wave. The frequency of this sound wave is above 20 kHz, which exceeds the frequency band that humans can perceive, so people define the sound wave in this frequency band as ultrasound.

Ultrasonic waves propagate in the form of longitudinal waves in gases and liquids. Its vibration displacement is extremely small, but it can obtain high sound pressure and sound power density. It has cavitation phenomena. Using these characteristics, ultrasonic waves have been widely used in many fields. The application in industrial cleaning is an example.

In 1951, the world's first ultrasonic cleaning machine was born. With the advancement of production technology, ultrasonic cleaning has become an indispensable process link in the manufacturing industry. To improve the quality of electroplated workpieces, extend the service life of the engine, and improve the accuracy of silicon wafers and semiconductors, it is necessary to add an ultrasonic cleaning link. In the manufacturing industry, ultrasonic cleaning has been the same as casting, die-casting, machining, surface treatment, heat treatment, mechanism assembly and other processing methods. It is a very common and natural thing.

In the 21st century, human beings have a deeper understanding of the earth environment on which they live, and science and technology have also undergone tremendous changes. This has promoted the new development of ultrasonic cleaning technology and achieved unprecedented breakthroughs in its application field.