There are many kinds of laser cutting machine wearing parts, today, here mainly to introduce the laser cutting machine in the protective lens.
The protective lens name is used for preventing dust and slag splash damage focusing lens, which in addition to the laser cutting machine used to think that is necessary in other laser equipment, including laser marking, laser welding and laser engraving etc.. Visible, the application of protective lenses market is very large.
The market price of protective lenses ranging from tens to hundreds of yuan price difference is very big, the quality are not the same, of course, also It is often seen. shoddy. If the lens selection is improper, it will cause laser loss, frequent damage, protect the lens, product quality instability, causing serious losses to the enterprise. Therefore, choosing the right protective lens is a very important thing.
There are three steps to select protective lenses for laser cutting machines:

1) Shape size matching, this easy to understand;
2) Material, according to different laser power, considering the cost, you can select K9, quartz, in the practical application process, professional manufacturers of these two types of material is divided into multiple levels, customers can choose according to the specifications of the actual needs.
3) Coating, laser antireflection coating, according to the use of the environment using different coating parameters.
The protective lens of laser cutting machine are wearing parts, but in order to improve its utilization rate, reduce production costs, through regular cleaning of protective lenses, and realize the goal of using the following three steps of cleaning, HANS GS laser summary:
1.Protective lens material is ZnSe (Arsenic arsenide), relatively crisp, afraid of falling; in disassembly and assembly should pay attention to: can not be too hard, and hard objects can not collide. Surface antireflection film, for fear of contamination, afraid, afraid, afraid of wet oil scraping; the required air drying, the oil in the work, do not directly hand processing of laser cutting machine to protect the lens of the lens, because the skin grease will cause permanent damage to the surface of the lens. On the contrary, you can use gloves and their special sets of tools to operate, for smaller lenses, using optical tweezers or vacuum tweezers will be more convenient. No matter what method is used to clamp the laser cutting machine protective lenses, only along the non optical surface clamping, such as lens side edge grinding.

2. In general, the protective lens of laser cutting machine should be checked before and after cleaning. Because most contaminants and surface defects are relatively small, we often need to use magnifying equipment when we check lenses. In addition to amplifying devices, sometimes we need to use a beam of brighter light to irradiate the optical surface to enhance the specular intensity of the contaminants and defects on the surface, which makes it easier to detect contaminants and defects.
3. When cleaning a laser cutting machine to protect the lens, often use clean wipe paper and optical grade solvent, to prevent damage by other pollutants. Wipe paper must be wetted with proper solvent. Never dry it. In consideration of softness, usable wipes are pure cotton Webril wipes or cotton balls, lens paper, and cotton swabs.