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The focusing lens of a laser cutting machine is the only lens that contacts the processing surface when the cutting machine is working. During cutting, dust and slag are affected, and dust easily adheres to the focusing lens. When the mirror is dirty, the light transmittance of the focusing lens becomes lower and the endothermic property becomes higher. If the cleaning work is not done well, the lens can easily burst. Keeping the lenses clean can keep the transmittance of the lenses at a high standard. If the optical lenses are contaminated or contaminated with dust, the transmittance of the lenses will continue to decrease, causing the lens to become hot and deformed, thus reducing the quality of laser cutting. Seriously, it may not be usable, and it will damage the machine.
Focusing lenses are generally convex structures, the role of the laser beam emitted by the laser focused on a small point. What are the selection techniques for focusing lenses in laser cutting machines? For a lens with a longer focal length than a lens with a shorter focal length, a lens with a longer focal length can obtain a relatively deep and large focal point, so the lens with the proper focal length should be selected according to the actual application needs. The smaller the size of the focusing lens, the smaller the diameter of the focused spot, the more concentrated the laser power, but the thinner the material that can be processed. The larger the size of the focusing lens, the greater the size of the material that can be machined.
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Formic Acid

Formic Acid, systematically named Acid Formic, is the simplest carboxylic Acid Product, and has the chemical formula H2CO2. It is an important intermediate in chemical synthesis and occurs naturally, most notably in some ants. The word "formic" comes from the Latin word for ant, formica, referring to its early isolation by the distillation of ant bodies. Esters, salts, and the anion derived from formic acid are called formates. Industrially, formic acid is produced from methanol.

Formic Acid 85 is a colorless liquid having a pungent, penetrating odor at room temperature, comparable to the related acetic acid. It is miscible with water Titanium Dioxide and most polar organic solvents, and is somewhat soluble in hydrocarbons. In hydrocarbons and in the vapor phase, it consists of hydrogen-bonded dimers rather than individual molecules.Owing to its tendency to hydrogen-bond, gaseous Formic Acid Liquid does not obey the ideal gas law.Solid Sodium Hexametaphosphate formic acid, which can exist in either of two polymorphs, consists of an effectively endless network of hydrogen-bonded formic acid molecules. Formic Acid 85% forms a high-boiling azeotrope with water (22.4%). Liquid formic acid tends to supercool.

Formic Acid,Formic Acid 85,Formic Acid 85%,Acid Formic,Formic Acid Liquid

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