What Is Laser Cleaning?
Laser cleaning is to use laser light to irradiate the surface of the substrate to produce a change in thermal expansion coefficient to peel off the dirt from the surface of the substrate, and because the laser used in the laser cleaning machine will generate tens of millions of oscillations during the cleaning process, the peeled off The dirt will be shattered by the laser. We also need to adjust to the appropriate cleaning parameters so that the substrate will not be damaged by the laser during the cleaning process and can be cleaned without damage.
What Is Ultrasonic Cleaning?
The ultrasonic cleaner uses the cross-frequency signal emitted by the ultrasonic generator, which is converted into cross-frequency mechanical oscillation through the transducer and propagated to the medium - cleaning liquid, and the strong ultrasonic wave radiates to the washed object in the form of dense phase in the cleaning liquid. The phenomenon of "cavitation" is produced, that is, the "bubble" form in the cleaning liquid, resulting in the phenomenon of rupture. When "cavitation" reaches the moment when the surface of the washed object is ruptured, an impact force of far more than 1000 atmospheres is generated, causing the dirt in the surface, pores and gaps of the object to be dispersed, broken and peeled off, so that the object can achieve purification and cleanliness.
What Is The Difference Between Laser Cleaning And Ultrasonic Cleaning?
Laser cleaning has the advantage of not being in contact with the object to be cleaned. The method of ultrasonic cleaning is close-range cleaning, which has mechanical force on the surface of the cleaning object and is easy to damage the surface of the object. And laser cleaning is a kind of non-contact processing, which can conveniently realize long-distance operation.
The above is the difference between laser cleaning and ultrasonic cleaning. 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 thermal load and mechanical load on the substrate are small, and the cleaning is non-damaging; it does not damage the health of the operator; the cleaning process is easy to realize automatic control, and realizes remote remote cleaning.
