Laser cleaning technology works by sending nanosecond-length pulses of laser light towards a surface, which is the process of removing oxide, coating, contaminated, dust, etc. layers on metal surface by laser irradiation.
Laser cleaning is based on the principle of photon pulses that are projected towards the surface. Depending on the material, they will trigger thermal, physical or photochemical processes there, resulting in a cleaning effect. In the case of an oxidized metal surface, the oxide particles detach from the surface because their coefficient of expansion differs from that of the metal.
By absorbing the energy of high peak pulse power laser beam, the target layer evaporates quickly. This shock wave fragments and ejects the layer of pollutant in fine particles which are then captured by a suction system.
When the parameters of the laser beam are optimized, only the coating, oxide or residue will be removed without damaging the substrate. This type of laser treatment provides cleaning results that are impossible to achieve with traditional technologies. Moreover it is very environmentally friendly as it does not generate any chemical waste or dust.