In the field of industrial manufacturing and maintenance, clean technology has always been an indispensable part of the production process. Although traditional cleaning methods such as chemical cleaning, mechanical polishing, or sandblasting are effective, they often come with problems such as environmental pollution, substrate damage, or high costs. Laser cleaning technology, as a non-contact and wear-resistant cleaning solution, is gradually becoming an important choice in the industrial cleaning field.
Principles of Laser Cleaning Technology
Laser cleaning machines use high-energy density laser beams to irradiate the surface to be cleaned, and remove pollutants through photothermal or photophysical effects. Its working principle is mainly based on the following mechanisms:
Laser ablation: pollutants vaporize instantly after absorbing laser energy
Thermal expansion peeling: Separation of pollutants and substrates due to different coefficients of thermal expansion
Optical pressure effect: The impact force generated by high-energy photons directly removes surface particles
Plasma shock wave: plasma shock wave generated by high-power laser for cleaning pollutants
Compared with traditional cleaning methods, laser cleaning has significant advantages such as high precision, non-contact, no chemical residue, and selective cleaning.
Core components of laser cleaning machine
A complete laser cleaning system typically includes the following key components:
Laser generator: fiber laser (mainstream), pulse laser or continuous laser
Optical system: focusing mirror, scanning galvanometer, beam shaping device
Motion control system: robot arm, CNC worktable or handheld operating device
Dust removal system: exhaust gas collection and filtration device
Monitoring system: real-time monitoring equipment such as CCD cameras and spectral analyzers