What is the difference between ordinary flat glass and float glass?

Both ordinary flat glass and float glass are flat glass Just differences in production process and quality.

Ordinary flat glass is a transparent five colored flat glass produced by mixing raw materials such as quartz sandstone powder, silica sand, potassium fossils, soda ash, and saltpeter in a certain proportion, melting them at high temperature in a melting furnace, and using vertical pulling method, flat pulling method, and rolling method Ordinary flat glass is divided into three categories based on appearance quality: selected, first-class, and second-class Divided into five types based on thickness: 2, 3, 4, 5, and 6mm.

Float glass is a transparent five color flat glass made from raw materials such as sea sand, quartz sandstone powder, soda ash, dolomite, etc., prepared in a certain proportion, melted at high temperature in a melting furnace, and the glass liquid continuously flows from the tank furnace to float on the metal liquid surface. It is spread into a glass strip with uniform thickness and polished by fire, cooled and hardened to separate from the metal liquid, and then annealed and cut The glass surface is particularly flat and smooth, with a very uniform thickness and minimal optical distortion Float glass is divided into three categories based on appearance quality: superior, first-class, and qualified Divided by thickness into seven types: 3, 4, 5, 6, 8, 10, and 12mm.

The appearance quality grade of ordinary flat glass is determined based on the number of defects such as ripples, bubbles, scratches, sand particles, lumps, and lines The appearance quality level of float glass is judged based on the number of defects such as optical deformation, bubbles, inclusions, scratches, streaks, and fog spots.

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