Qinhuangdao Aohong Glass co.,ltd
Q
What is Float Glass ?
A


What is float glass ?


Float glass is a sheet of glass made by floating molten glass on a bed of molten metal, typically tin, . This method gives the sheet uniform thickness and very flat surfaces.

The forming process for float glass production is done in a tin bath with protective gas (N2 and H2). The molten glass continuously flows from the kiln and floats on the surface of the relatively dense tin liquid. Under the action of gravity and surface tension, the molten glass spreads on the tin surface, flattens, and the upper and lower surfaces are flattened, hardened and cooled. After being introduced into the transition roller table. The roller of the roller table rotates, and the glass ribbon is pulled out of the tin bath into the annealing kiln, and after annealing and cutting, a float glass product is obtained. Compared with other forming methods, the floating method has the following advantages: It is suitable for high-efficiency manufacturing of high-quality flat glass. If there is no stratum, the thickness is uniform, the upper and lower surfaces are flat and parallel to each other; the scale of the production line is not limited by the forming method, and the energy of the unit product Low consumption; high utilization rate of finished products; easy to scientifically manage and realize full-line mechanization and automation, high labor productivity; continuous operation cycle can last for several years, which is conducive to stable production; can provide suitable conditions for online production of some new varieties, such as Electro-float reflective glass, sprayed film glass during annealing, cold-end surface treatment, etc.


For float glass, the uniformity of the thickness is better, and the transparency of the product is relatively strong. Therefore, after the treatment of the tin surface, it is relatively smooth, and under the action of the flame and the polishing, a surface is formed. The glass has relatively good flatness, good flatness and strong optical properties. The decorative characteristics of this float glass are particularly good, and it has good transparency, brightness, purity, and bright indoor light. Performance, but also the best choice of materials for building doors and windows, natural lighting materials, is one of the most widely used building materials, it can be said that in the variety of architectural glass, this float glass application is the largest It is one of the most important original films for deep processing of glass. Ultra-white float glass features the best transparency purity.


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