The core technical principle of the pulsed laser cleaning machine

The working logic of the pulsed laser cleaning machine is based on the synergy of "photo-erosion" and "impact wave effect". Its core component is the pulsed laser device, which can release high-energy-density laser beams within extremely short periods (typically in the nanosecond to microsecond range). When the laser energy precisely acts on the contaminants (such as rust, oil stains, oxide layers, coatings, etc.) on the surface to be cleaned, it triggers two key physical processes:

On one hand, the contaminants absorb the laser energy and rapidly heat up, reaching the vaporization temperature within nanosecond timeframes, forming tiny "plasma clouds", achieving rapid detachment of the contaminants from the substrate surface; on the other hand, the instantaneous shock waves generated by the pulsed laser will further break down the remaining contaminant particles, allowing them to be detached from the workpiece surface with the airflow.

Compared with continuous laser cleaning, the advantage of pulsed laser lies in "energy controllability" - by adjusting the pulse width (10ns-100ns), repetition frequency (1kHz-100kHz), and single-pulse energy, it can precisely match the cleaning requirements of different contaminants (such as thick rust layers, thin oxide films, micro-dust on the surface of precision electronic components), avoiding the overheating, deformation or surface damage of the workpiece substrate caused by continuous laser action for a long time.