The most used of coated glass are heat reflective glass and low radiation glass. Basically, two production methods are used: vacuum magnetron sputtering and chemical vapor deposition. Since the late eighties, China has appeared hundreds of coated glass manufacturers in the industry with a greater impact on the production of vacuum magnetron sputtering method, etc., chemical vapor deposition method manufacturers such as Shandong Blue Star Glass Company and Changjiang Float Glass Company. There are many production methods of coated glass, mainly vacuum magnetron sputtering, vacuum evaporation, chemical vapor deposition, and sol-gel method.
Magnetron sputtering coated glass using magnetron sputtering technology can be designed and manufactured multi-layer complex film system, can be coated with a variety of colors on a white glass substrate, the film layer of corrosion and wear resistance is better, is currently one of the most produced and used products.
The variety and quality of vacuum evaporation coated glass compared with magnetron sputtering coated glass are a certain gap, has been gradually replaced by the vacuum sputtering method. Chemical vapor deposition method is in the float glass production line through the reaction gas in the burning glass surface decomposition, uniformly deposited on the glass surface to form a coated glass.
The method is characterized by low investment in equipment, easy to regulate, low product cost, good chemical stability, can be thermally processed, is one of the most promising production methods. Sol-gel method of producing coated glass process is simple and stable, the shortcoming is that the product light transmission ratio is too high, the decorative properties are poor.
Coated glass according to the different characteristics of the product, can be divided into the following categories: heat-reflective glass, low-e glass (Low-E), conductive film glass, etc.. Heat-reflective glass is generally coated with one or more layers of metals such as chromium, titanium or stainless steel or their compounds on the surface of the glass, so that the product is rich in color.
For visible light has a proper transmittance, for infrared has a high reflectivity, and for ultraviolet has a high absorption rate.
Therefore, also known as sun control glass, mainly used in buildings and glass curtain walls; low-e glass is coated on the surface of the glass by multi-layer silver, copper or tin and other metals or their compounds composed of film system, the product has a high transmittance of visible light, a high reflectivity of infrared light, with good thermal insulation properties, mainly used in buildings and cars, ships and other vehicles, due to the film layer strength is poor
Generally made of hollow glass use; conductive film glass is coated with indium tin oxide and other conductive films on the glass surface, can be used for glass heating, defrosting, defogging and used as LCD screens; coated glass is coated with one or more layers of metal, alloy or metal compound film on the glass surface to change the optical properties of the glass to meet a
specific requirement.
Post time: Nov-04-2022