Advantages of laser cleaning over ultrasonic cleaning

Ultrasonic cleaning is to use the frequency signal issued by the ultrasonic generator, through the transducer converted into frequency mechanical oscillation and spread to the medium, that is, in the form of “bubbles” in the cleaning liquid, rupture phenomenon. When the “cavitation” reaches the moment when the surface of the washed object breaks, the impact force of far more than 1000 atmospheric pressure is generated, which causes the dirt in the surface, holes and gaps of the object to be dispersed, broken and peeled off, so that the object can achieve purification and cleaning.

Laser cleaning technology refers to the use of high energy laser beam irradiate the workpiece surface, so that the surface of the dirt, rust or coating instantaneous evaporation or peeling, high-speed and effective cleaning object surface attachment or surface coating, so as to achieve a clean process. It is a new technology based on the effect of laser interaction with matter.

The difference between laser cleaning and ultrasonic cleaning is that laser cleaning operation is very convenient, generally hand-held cleaning can be done without any medium directly on the surface of the object cleaning, for large area cleaning and precision parts cleaning effect is very good, the working temperature is -5℃~50℃, and the ultrasonic need to add cleaning agent, Washable workpiece small, coating and submicron particles can not be removed. The higher the ultrasonic power density, the stronger the cavitation effect, the faster the speed, the better the cleaning effect, but for the precision surface finish is very high, the use of long time high power density cleaning will produce cavitation and corrosion on the surface of the object.

Laser cleaning features: 1, no grinding, non-contact cleaning, avoid secondary pollution; 2, high cleaning precision, strong controllability; 3, no consumables, strong environmental protection; 4, laser cleaning can remove different types of materials surface, different thickness of the attachment; 5, easy to control, power can be, can be hand-held or cooperate with the manipulator to realize automatic cleaning; 6, high cleaning efficiency, save time; 7, the system is stable, long life; 8, one-time input, economic efficiency.

Modern high-end manufacturing cleaning fields such as aerospace, rail transit, automobile manufacturing and mold industry, etc., have long been difficult to clean, high precision requirements, slow work efficiency and other pain points, the market demand has also spawned higher industry requirements for laser cleaning industry. For example, the quality of the mold directly affects the quality of the tire. The surface of the tire mold will have carved patterns or other patterns, and the mold is often used in a high temperature and high humidity environment, so there will be a lot of rubber or other residues remaining in the groove of the inner carving. When accumulated to a certain extent, it will affect the shape and structure of the mold and eventually lead to the production of defective products. Therefore, it is very important to keep the tire mold clean.