Advantages Of Laser Cleaning Over Ultrasonic Cleaning

Ultrasonic cleaning is to use the cross-frequency signal sent by the ultrasonic generator, and the mechanical vibration converted into cross-frequency by the transducer is transmitted to the medium. That is, the phenomenon of bursting in the form of “bubbles” in the cleaning solution. When the “bubbles” reach the surface of the object to be washed and burst, it will produce an impact force far exceeding 1000 atmospheres, so that the dirt on the surface, pores, and crevices of the object will be dispersed, broken, peeled off, and the object will be clean.
Laser cleaning technology refers to the use of high-energy laser beams to irradiate the surface of the workpiece, so that the dirt, rust or coating on the surface evaporates or peels off instantly, and effectively removes the cleaned surface attachments or surface coatings. The object moves at a high speed, so as to achieve the cleaning process. It is a new technology based on the interaction of laser light with matter.
The difference between laser cleaning and ultrasonic cleaning is that laser cleaning is very convenient to operate. Generally, it can be cleaned by hand, without any medium, just clean the surface of the object directly. Very effective for large area cleaning and precision parts cleaning. The working temperature is between -5°C and 50°C, and ultrasonic cleaning needs to be added. , the higher the power density of the ultrasonic wave, the stronger the cavitation effect, the faster the speed, and the better the cleaning effect. However, for precision objects with very high surface finish, long-term high power density cleaning will cause cavitation and corrosion on the surface of the object. Ultrasonic can clean small-sized workpieces, but cannot remove submicron particle contamination, cannot remove coatings, etc. These laser cleanings are not a problem.

Laser Cleaning Features:

1. No need for grinding, non-contact cleaning, avoiding secondary pollution;

2. High cleaning precision and strong controllability;

3. No consumables, strong environmental protection;

4. Laser cleaning can clean different types of surfaces of various materials , Attachments of different thicknesses;

5. Easy to control, just turn on the power, and can be hand-held or cooperate with the robot to realize automatic cleaning;

6. High cleaning efficiency, saving time;

7. Stable system and long life;

8. One-time investment, high cost performance.

Modern high-end manufacturing cleaning fields such as aerospace, rail transit, automobile manufacturing, and mold industries have long had pain points such as difficult cleaning, high precision requirements, and slow work efficiency. Market demand has also spawned a higher laser cleaning industry. industry requirements. For example, the quality of the mold directly affects the quality of the tire. Patterns or other patterns are engraved on the surface of the tire mold, and the mold is often used in a high-temperature and high-humidity environment, so a large amount of rubber or other residues will remain in the grooves engraved inside. To a certain extent, it will affect the shape and structure of the mold, and eventually lead to the production of defective products, so it is particularly important to keep the tire mold clean.
The traditional cleaning process uses an ultrasonic cleaner. Ultrasonic cleaning can negatively impact the production of molds because the process is time-consuming and some molds need to be disassembled for cleaning. Also, this process should only be used on molds that have cooled. Only after the mold is cooled, cleaned, and reheated can a new round of production be restarted, which is time-consuming and laborious.
Laser cleaning mold mainly uses the principle of laser cleaning to remove dirt on the surface of the mold and residues in the production process. It belongs to physical cleaning, which is efficient, environmentally friendly and pollution-free, and has a good cleaning effect. The traditional cleaning process has a variety of cleaning methods: sandblasting, dry ice, grinding, chemical scrubbing, etc. If the cleaning environment is not good, unnecessary damage may occur. Using laser cleaning instead of the original ultrasonic cleaning can reduce the cost of use by more than 50%, and can greatly improve the pass rate of comprehensive products.
Compared with traditional cleaning methods such as ultrasonic cleaning and chemical corrosion cleaning, laser cleaning has obvious advantages: it is efficient, fast, and low in cost. ; The cleaning process is easy to realize automatic control, realizing remote remote cleaning, etc. Now government agencies in various countries pay more attention to environmental protection, and many traditional cleaning processes are gradually being replaced. Laser cleaning will become the mainstream of industrial cleaning, and the prospect is promising!

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