Extend the service life of the focusing lens of the laser cutting machine

The focusing lens is a lens that touches the processing surface when the cutting machine is working. Affected by smoke and slag during cutting, dust is easy to adhere to the focusing lens. When the mirror surface is dirty, the light transmittance of the focusing lens becomes lower and the heat absorption becomes higher. If the cleaning work is not done well, the lens will become easy to burst. How can the service life of the focusing lens be extended?

1. Generally, dry, oil-free and dust-free positive pressure air is used in the laser-sealed light path to ensure that dust and impurities in the atmosphere cannot enter the light path, so as to prevent the pollution of the optical lens.

2. The waste residue generated by laser cutting makes the auxiliary air blow down from the cutting nozzle, thereby greatly reducing the damage to the lower part of the focusing lens by the waste residue.

3. If it is an ultra-high-speed perforation, you can spray perforating oil before perforating, so that the slag will not fall to the torch part vertically, but fall to the side. Thereby reducing the damage to the lens.

4. Use ultra-high-speed perforation as little as possible. Using conventional perforation can prolong the service life of the focusing lens.

5, ^It is good to clean and maintain the focusing lens every time before starting work. When cleaning the focusing lens of a fiber laser cutting machine, clean wipes and optical-grade solvents are often used to prevent damage by other contaminants. The wipe paper must be moistened with a suitable solvent, and it must not be used dry. In consideration of softness, the usable wipes are pure cotton Webril wipes or applicators such as cotton balls, lens tissues, and cotton swabs.

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