Processes of Making Glass

There are some steps to make glass. First, we need material such as sand (SiO2), limestone (CaO), and soda (Na2CO3). Then, mix those materials in a furnace and burn them in high temperature (1800 Kelvin) until they melt and become glass steam. The glass steam has to be flown to the next step. The next step is glass forming. There are two kind of process. First process is for producing plate glass. To make plate glass, pour the glass steam to container that will flow the mixture through some rollers. These rollers will flatten the glass steam into plate glass. The other process is for producing bottle glass. To make bottle glass, pour the mixture to a removable mould. Then, blow air into the mould to expand the melted mixture to the area inside it. Then, we have to cool down the mixture. After that, remove the mould to get the bottle. These are steps to make the plate glass or bottle glass.


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