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Composite laser cleaning, the best choice for paint removal

Composite laser cleaning, the best choice for paint removal

The cleaning laser adopts annular beam combining technology to shape the output laser into an annular spot, the center is a pulsed spot with high peak power, and the outer ring is a high-power continuous spot. The two spots are independent and do not cover each other. Compared with traditional Using the compound cleaning spot of the external optical path combination, the ring-spot compound laser designed by this product, the power density of the outer ring of the spot can be significantly improved, which can greatly improve the cleaning efficiency. For different cleaning surface materials and colors, a wider range of wavelengths can be selected. Combined with automatic methods, it can be widely used in rail transit, ships, aerospace and other fields, and can achieve large-scale cleaning of rust layers, aluminum alloys and other non-ferrous metal oxide layers. .

Composite laser cleaning, the best choice for paint removal

Laser composite cleaning uses semiconductor continuous laser as heat conduction output, so that the attachment to be cleaned absorbs energy to generate gasification and plasma cloud, and forms thermal expansion pressure between the metal material and the attachment, reducing the bonding force between the two layers. When the laser outputs a high-energy pulsed laser beam, the generated vibration shock wave makes the attachments with weak binding force directly detach from the metal surface, thereby realizing rapid laser cleaning.

Laser composite cleaning combines continuous laser and pulsed laser functionally at the same time to form the processing characteristics of 1+1>2. Fast speed, high efficiency, and more uniform cleaning quality. For different materials, lasers with different wavelengths can be used to clean at the same time to achieve the purpose of removing stains.

At present, laser composite cleaning is widely used in the fields of ships, auto repair, rubber molds, high-end machine tools, rails, and environmental protection, etc., and effectively removes resin, paint, oil stains, stains, dirt, rust, coatings, coatings and oxide layers on the surface of objects.

For example, in the laser cleaning of thicker coating materials, the single laser multi-pulse energy output is large and the cost is high. The use of pulsed laser-semiconductor laser composite cleaning can quickly and effectively improve the cleaning quality without causing damage to the substrate; in aluminum In the laser cleaning of highly reflective materials such as alloys, the single laser has problems such as high reflectivity. The pulsed laser-semiconductor laser composite cleaning is used. Under the action of the thermal conduction transmission of the semiconductor laser, the energy absorption rate of the oxide layer on the metal surface is increased, so that the pulsed laser The beam can peel off the oxide layer faster, thereby improving the removal efficiency more effectively, especially the paint removal efficiency is increased by more than 2 times.

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