Application of Thermal Gas Mass Flow Meter in Optical Coating

Application of thermal gas mass flowmeter in optical coating Thermal gas mass flowmeter is widely used in many industries. It has the advantages of small size, high degree of digitization, convenient installation and accurate measurement. Can be used in: environmental protection industry, food and pharmaceutical industry, chemical industry, metallurgical industry, power industry and other industries. There are also pipeline gas; general system; biogas; gas; natural gas; liquefied gas; boiler preheating air What is the relationship between the thermal gas mass flowmeter and optical coating? In vacuum ion coating, the color of the liquid gas produced by different gases will be different. Argon is generally used to create the coating environment. When titanium and chromium are deposited, the industrial gas can be filled with nitrogen to produce silver and yellow. If you want to produce black or gray products, you need to add acetylene gas and oxygen to produce blue products. In addition to gas, the color of the product produced is also affected by conditions such as pressure, temperature, and time. Optical coating refers to the process of coating one (or multiple layers) of metal (or dielectric) films on the surface of optical parts. The purpose of coating the surface of optical parts is to reduce or increase the reflection, beam splitting, color separation, filtering, polarization and other requirements of light. Commonly used coating methods include vacuum coating (a kind of physical coating) and chemical coating. Optical thin films are realized in a high-vacuum coating chamber. Conventional coating processes require elevated substrate temperatures (typically around 300°C); more advanced techniques, such as ion-assisted deposition (IAD), can be performed at room temperature. The IAD process not only produces films with better physical properties than conventional coating processes, but can also be applied to substrates made of plastic.

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