Selection of protection lens for wearing parts of cutting machine

Although the protective lens of the laser cutting machine is a wearing part, in order to improve its utilization rate and reduce production costs, the protective lens can be cleaned regularly to achieve the purpose of reuse. The following are the three cleaning steps summarized by the high-energy laser:
1. The protective lens material is ZnSe (zincized arsenic), which is relatively brittle and afraid of falling; be careful when disassembling: do not use too much force and do not collide with hard objects. There is an antireflection coating on the surface, which is afraid of pollution, moisture, oiliness, and scratching; therefore, it is required to provide dry and degreased air in the work. Never handle the laser cutting machine directly to protect the lens of the lens because of skin oil Will cause permanent damage to the lens surface. On the contrary, you can wear gloves and its special set for operation. For smaller lenses, it is more convenient to use optical tweezers or vacuum tweezers. No matter what method is used to clamp the laser cutting machine to protect the lens, it can only be clamped along the non-optical surface, such as the frosted edge of the mirror plaque.
2. Under normal circumstances, it is necessary to check the protection of the lens of the laser cutting machine before use and before and after cleaning. Because the size of most contaminants and surface defects is relatively small, we often need to use magnifying equipment when inspecting lenses. In addition to the magnifying equipment, sometimes we also need to illuminate the optical surface with a brighter beam of light to enhance the specular reflection intensity of surface contaminants and defects, so that it is easier to find contaminants and defects.
3. When cleaning a laser cutting machine to protect the lens, often use clean wipes and optical grade solvents to prevent damage from other contaminants. The wipe paper must be moistened with a suitable solvent and must not be used dry. In consideration of softness, the usable wiping paper is pure cotton Webril wiping paper or cotton ball, lens paper, and cotton swabs and other applicators.

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