Sunday, March 23, 2008

Task 3 : How to make a glass?

The making of glass

The process of making a glass is not too difficult to imagine. Just follow the step. The materials for making glass, such as sand, soda, and limestone must first be reduced to powder. Then, we put that materials into the furnace machine. In that place, the materials will be heated for about five or six hours and being frequently stirred about during the process. When taken out, the matter is called frit and pounded become a molten matter. Afterward, the molten matter is converted in the next process. There will be two ways when the matter is being processed. One is converted the matter into a bottle glass in a removable mould and the other is converted into a plate glass through the rollers.

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