Making Glass

The making of glass doesn’t take lots of steps. First step, silica in the form of sand as the main ingredient, combined with soda ash and lime stone are flowed into a furnace and melted at temperatures of 1700oC. Then, the mixture is separated into two parts, for making plate glass and the other is for making bottle glass. For making plate glass, the mixture is just flowed into a melting pot then it is grinded and polished both sides to smooth clarity, then it is caried by a system of rollers . For making bottle glass, the mixture is heated to above 1,000 degrees Farenheit, until the sand melts, and becomes fluid, this is molten glass. It is then blown into a balloon-like shape on the end of a tube. In commercial mold blown and pressed glass applications, this 'balloon' of glass is blown inside a bottle-shaped. The mold is then placed in an annealing oven, to cool very slowly, so the glass doesn't shatter from the strain of sudden temperature change. Both of those two process are ended with cooling process to get the solid form of either plate glass or bottle glass.

Marcella Dyan
16607067
Good work, thanks