The glass-making process

Glass is made and used in many forms. Two of them are plate and bottle glass. Several steps can be followed to make these two kinds of glass. First of all, the raw materials to make a glass must be prepared, like sand, soda, and limestone. Then, they are mixed and melted in a furnace at temperature locally up to 1675 F. After that, the molten glass is sent to the mould for the plate and bottle glass. And then it changed from liquid to solid form, called gobs. Finally, the gobs, a cylinder of molten glass, are divided to make those two kinds of glass. The first half of gobs are sent into the blank removable mould and the air is blown to make a bottle shape. Then the other half of gobs are transferred to the mould, flattened, and formed a plate glass. Finally, the plate glass is released in rollers and can be used for many purposes.