Thursday, October 4, 2007

How Glass Is Made?

The making of glass requires several steps. Firstly, some sand, soda, and limestone need to be collected. These raw materials are then mixed in a furnace, and are melted down into a liquid known as molten glass. Once this molten glass is obtained the making of both plate glass and bottle glass becomes possible.
For the making of plate glass, the liquid molten glass is then rolled into a flat plate by rollers. When the glass finally cools down it would end up hard and thin, thus producing what we call plate glass.
For the making of bottle glass, the liquid molten glass is poured into a removable mould that has the shape of a bottle. Air is then injected into that removable mould, which forces the glass outward onto the mould and makes the glass take the shape of a bottle. The mould is then cooled down and removed, and a glass bottle is made

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