High-efficiency and high-quality removal of sulfurized silicone rubber from insulator
surfaces is paramount for high-voltage power systems. To address this
issue, and aiming to achieve precise and nondestructive cleaning of
room temperature vulcanized (RTV) coatings, we selected millisecond
laser cleaning technology in this study. Successful and efficient
cleaning of the RTV coating was performed by adjusting laser
parameters. Characterization techniques, including scanning electron
microscopy, energy-dispersive x-ray spectroscopy, and confocal
microscopy, were employed to comprehensively assess the cleaning
effects and ensure the integrity of the substrate surface. The results
indicate that by adjusting the scanning power combination of the high
power of the millisecond pulse laser to 200 W and the low power
of 150 W, the glass substrate surface maintains excellent
roughness and micro-morphological features after laser cleaning,
providing optimal conditions for subsequent processing and
utilization. This research contributes an efficient and cost-effective
solution to the insulation treatment process in high-voltage power
systems.