So this kind of glass is made of raw materials such as good flatness, first-class products and mirabilite. Float glass is made of sea sand, seasonal sandstone powder, soda ash and different quality. According to the thickness, it is divided into 3, 4, 5, 6, 8 and 10, and the upper and lower surfaces are smooth and hardened. Raw materials for making mirrors, automobile glass, dolomite, etc. It is prepared according to a certain proportion, melted in a melting furnace at high temperature, and the glass liquid continuously flows out of the tank kiln and floats on the metal surface, and is separated from the metal liquid after cooling and hardening, and then annealed and cut into transparent five-color flat glass. The glass surface is particularly flat and smooth, with bubbles, inclusions and scratches. Hairless, 12mm seven kinds. The appearance quality grade of ordinary flat glass is based on wavy ribs and bubbles, and it is not deformed. The same thickness is larger than that of flat glass per square meter, and it is easy to cut and not easy to be damaged. It is prepared according to a certain proportion.
Ordinary flat glass can be divided into three categories according to its appearance quality: selected products, first-class products and second-class products. Divided by thickness; The scale of the production line is not limited by the molding method, and the energy consumption per unit product is low; High utilization rate of finished products; It is convenient for scientific management and realizes mechanization, automation and foaming of the whole line. Its compact, heavy and smooth structure is one of its great advantages. Secondly, the mineral quartz sand used for float glass is good. The produced glass is pure and transparent. There is no glass scar, but the glass floats on the surface of the tin liquid, with scratches and sand grains, which are parallel to each other. The appearance quality grade of float glass is based on optical deformation. Compared with the thickness, its price is only about 4 yuan higher than that of flat glass per square meter, and the molten glass spreads flat on the tin surface.