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Views: 18 Author: heyu Publish Time: 05-20-2020 Origin: Leapion fiber laser cutting machine
How to choose the focusing lens of laser cutting machine? When using a fiber laser cutting machine to cut metal plates of different thicknesses, besides choosing the equipment with the appropriate power, we must also pay attention to the choice of focusing lens. Some people may be a bit strange. Isn't the fiber laser cutting machine ready for processing and use? Next, I will explain to you! There are many kinds of consumable parts for laser cutting machines. Today, here I mainly introduce you to the protective lenses in laser cutting machines. As the name implies, the protection lens is used to prevent dust and slag splashing from damaging the focusing lens. It is not only used in laser cutting machines, but also in other laser equipment, including laser marking, laser welding and laser engraving . It can be seen that the application market for protective lenses is very large.
The price of protective lenses on the market varies, ranging from tens of yuan to hundreds of yuan. The price varies greatly, and the quality is also different. Of course, it is not uncommon to have a second-time charge. If the lens is not selected properly, it will cause large laser loss, frequent damage to the protective lens, and unstable product quality, causing serious losses to the enterprise. Therefore, choosing the right protective lens is a very important thing.
First, three steps to choose the protective lens of the laser cutting machine:
1, the shape and size match, this is easy to understand;
2, the material, according to different laser power, Considering the cost of use, you can choose K9 and quartz. In the actual application process, professional manufacturers divide these two types of materials into multiple grades. Customers can choose the corresponding specifications according to actual needs.
3. Coating, laser antireflection coating, according to The application environment uses different coating technical parameters. Second, 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.
1. The protective lens material is ZnSe (arsenic zinc), which is relatively brittle and afraid of falling; pay attention when disassembling: do not use excessive force and do not collide with hard objects. There is an antireflection coating on the surface, which is afraid of pollution, humidity, 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 by 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 need to illuminate the optical surface with a relatively bright light to enhance the specular reflection intensity of surface contaminants and defects, so that the contaminants and defects can be more easily found. 3. When cleaning a laser cutting machine to protect the lens, often use clean wipe paper and optical grade solvents to prevent damage by 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. More info
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