Ultrasonic cleaning machines have been widely used in various fields in today's society, especially in the cleaning and restoration of precision instruments. It has unique technical advantages and practical application value. This article first briefly introduces the principles and advantages of ultrasonic cleaning machines, and then focuses on its application research in the non-destructive cleaning and restoration of precision instruments, and analyzes its actual application effects in combination with actual cases. Finally, the article summarizes the advantages and development prospects of ultrasonic cleaning machines in the non-destructive cleaning and restoration of precision instruments.

Ⅰ. Introduction With the continuous advancement of science and technology, precision instruments are increasingly widely used in various fields, and their requirements for instrument performance and accuracy are also getting higher and higher.

Due to various factors during use, impurities such as oil, dust, and rust will be deposited on the surface and pores of precision instruments, resulting in a decrease in instrument performance or even failure. Traditional cleaning methods, such as mechanical cleaning and chemical cleaning, have certain limitations and it is difficult to achieve non-destructive cleaning and restoration of precision instruments. The emergence of ultrasonic cleaning machines provides a new way to solve this problem.

Ⅱ. Principle and advantages of ultrasonic cleaning machine

Ultrasonic cleaning machine uses the vibration and impact force of tiny bubbles generated by ultrasonic waves in liquid to clean dirt on the surface and pores of objects. Ultrasonic waves cannot propagate in the air, so the cleaning parts need to be immersed in liquid, or the ultrasonic generator needs to be directly in contact with the cleaning parts. The vibration and impact force of ultrasonic waves can cause dirt to fall off the surface and pores of objects and disperse into tiny particles, which can be easily dissolved or suspended by the cleaning liquid.

Ultrasonic cleaning machine has the following advantages:

1. Non-destructive cleaning: Ultrasonic cleaning will not cause mechanical or chemical damage to the cleaning parts, and is suitable for precision instruments of various materials.

2. Efficient cleaning: The microbubbles generated by ultrasonic waves in liquid have greater energy and can quickly remove dirt on the surface and pores of objects.

3. Uniform cleaning: The vibration and impact force of ultrasonic waves can act evenly on the entire surface of the cleaning parts, so that it can obtain a uniform cleaning effect.

4. Environmental protection and energy saving: Ultrasonic cleaning machine uses water as the cleaning medium, does not need to add chemical reagents, and has a short cleaning time and low energy consumption.

III. Research on the application of ultrasonic cleaning machines in non-destructive cleaning and restoration of precision instruments

1. Cleaning of precision mechanical parts: Impurities such as oil, dust, rust, etc. on mechanical parts can be cleaned and restored efficiently and non-destructively by ultrasonic cleaning machines.

2. Cleaning of optical equipment: Impurities such as fingerprints and oil on the surface of optical equipment will affect its optical performance.