Tempered glass cover made of float glass: The forming process of float glass production is completed in a tin bath filled with protective gases (N2 and H2). Molten glass flows continuously from the tank furnace and floats on the surface of the relatively dense tin liquid. Under the effect of gravity and surface tension, the glass liquid spreads and flattens on the tin liquid surface, forming a flat upper and lower surface. After hardening and cooling, it is led up to the transition roller platform. The rollers on the roller table rotate, pulling the glass ribbon out of the tin bath and into the annealing kiln. After annealing and cutting, flat glass products are obtained.

Compared with other molding methods, the advantages of float glass are: it is suitable for producing high-quality flat glass with high efficiency, such as no wave ribs, uniform thickness, flat upper and lower surfaces, and parallel to each other; The scale of the production line is not limited by the forming method, and the energy consumption per unit product is low; High product utilization rate; Easy to handle scientifically and achieve full mechanization and automation, with high labor productivity; The continuous operation cycle can last for several years, which is conducive to stable production; Suitable conditions can be provided for the online production of some new varieties, such as electric float reflective glass, spray coated glass during annealing, cold end surface treatment, etc. Tempered glass cover made of Gefa glass: Gefa, also known as Graveball Flat Pull Method or Deep Pool Flat Pull Method, is an improvement of the shallow pool flat pull method by the Belgians.

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