About laser-cleaning technology introduction

Laser-Cleaning technology refers to the use of high-energy laser beams to irradiate the surface of the workpiece to make the dirt, rust or coating on the surface evaporate or peel instantly, so as to achieve a clean process.

The laser is no different from the light around us, except that the laser uses a resonant cavity to gather light in the same direction, and has a simpler wavelength, better coordination and other performance, so in theory all wavelengths of light can be used To form a laser, it is actually limited by the fact that there are not many media that can be excited, so the laser light source that can produce stable and suitable for industrial production is quite limited.

The mechanism of Laser-Cleaning is mainly based on the fact that contaminants on the surface of the object absorb the laser energy, either vaporize or evaporate, or instantly expand by heat to overcome the adsorption force of the particles on the surface and make them detach from the surface of the object, thereby achieving the purpose of cleaning. To sum up, it roughly includes four aspects: laser vaporization and decomposition, laser peeling, thermal expansion of dirt particles, substrate surface vibration and particle vibration; and laser cleaning is often the result of multiple mechanisms acting simultaneously.