Heat-reflecting glass is generally coated with one or more layers of a metal such as chromium, titanium or stainless steel or a compound thereof on the surface of the glass to make the product rich in color, suitable for visible light, and high in infrared light. Reflectivity, high absorption rate of ultraviolet light, therefore, also known as solar control glass, mainly used in construction and glass curtain wall; low-emissivity glass is coated on the surface of glass by a layer of metal such as silver, copper or tin or its compounds The film system has high transmittance to visible light, high reflectivity to infrared rays, and good thermal insulation performance. It is mainly used in construction and transportation of automobiles and ships. Due to the poor strength of the film layer, it is generally They are all made of insulating glass; the conductive film glass is coated with a conductive film such as indium tin oxide on the surface of the glass, which can be used for heating, defrosting, defogging, and as a liquid crystal display of glass;
There are many methods for producing coated glass, such as vacuum magnetron sputtering, vacuum evaporation, chemical vapor deposition, and sol-gel methods. Magnetron sputter coated glass can be designed and manufactured with multi-layer complex film system by magnetron sputtering technology. It can be coated on white glass substrate with various colors. The film has good corrosion resistance and wear resistance. It is currently produced and One of the most used products. The variety and quality of vacuum evaporated coated glass are different from those of magnetron sputter coated glass, and have been gradually replaced by vacuum sputtering. The chemical vapor deposition method is carried out by introducing a reaction gas on a float glass production line to decompose on a hot glass surface, and uniformly depositing on the surface of the glass to form a coated glass. The method is characterized by low equipment input, easy regulation, low product cost, good chemical stability, and hot processing, and is one of the most promising production methods at present. The sol-gel method for producing coated glass is simple in process and good in stability. The disadvantage is that the product has a high light transmittance and poor decorativeness.
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