どのようにガラスの表面はとても平坦で？

At present, flat glass is generally used in a float process. (Also known as float glass) The process is to pour molten glass into a tin bath. The tin bath is about a few meters wide and several tens of meters long. Since the molten glass has a temperature of nearly a thousand degrees, the tin is melted. And the density of the tin liquid is greater than the density of the glass liquid, so the glass liquid floats on the surface of the tin liquid. The glass on the production line continuously stretches the glass, and there are inclined metal rollers on both sides of the tin groove - the pulling wheel constantly stretches the glass surface to both sides. Different thicknesses of glass can be obtained by adjusting the line speed and the width of the pull wheel.

ガラスの上部が自然に平準化されているので、平坦性が高いです。 下面は、スズ液体と接触する表面です。 連続生産条件下で、錫液体の表面は鏡面であり、かつ表面平坦性も非常に高いです。

これは、フロートガラスの製造工程です。