Glass can be formed as two main types of shape; they are bottle glass and plate glass. Some processes are needed to make both shapes from a glass. First, some materials like sand, soda and limestone are burned in a furnace. This process is going on high temperature and pressure. After that, the product of burning process is separated into two parts. In one part, that product is filled into a removable mould and then the air is pumped into it to make a hollow space in the bottle shape. Finally, the removable mould is removed and the bottle glass is ready to use. In the other part, the product of burning process is accommodated in a container and then it is siphoned into a roller machine. This roller machine is used to form a flat surface to the plate glass. Finally, the plate glass is formed.
Sunday, March 9, 2008
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