The Process to Produce Glass

Glass has been produced by mankind for such a long time. Now, in modern life there are so many ways to produce glass. Every way has its unique procedures on treating the elements into glass. It is not hard to understand how glass is made.
First, to produce glass, we have to distinguish the elements which are going to be used. There are sand, soda, and finally limestone. The next step we must take is heating the elements, which already placed together, in some kind of media which is able in resisting the heat, so the elements will liquefy and can be processed into the further step. After heating, we have to decide the type of glass we want to produce. We have two options, the bottle-shaped glass and the plate-shaped glass.
If we chose to make a bottle-shaped glass, the next step we have to apply is placing the liquid elements into a mold which already shaped like a bottle in the inside. The important event which will happen in this process is related to the air pressure. When the elements poured into the mold, the air pressure outside will press the elements so the elements will be attached to the wall of the mold.The final step that we should take in processing the glass into a bottle-shaped glass is let ting the elements to froze inside the mold, and then remove the mold itself from the glass.
If we chose to make a plate shaped glass, the next step is placing the liquid elements into a square shaped media.The final step that must be applied in processing plate glass is transferring the elements out and rolled it into a set of rollers that put face-to-face. The liquid glass elements will then have a plate shape. After these series of processes above, the elements will be transformed into the glass, which we usually see and use in our daily life.

Pratiwi Utami Putri
16607245
FTSL 2007

Glass Making

Glass is a combination of sand and other minerals that are melted together at very high temperatures to form a material that is ideal for a wide range of uses. These are the following steps of making glass.
First, prepare the ingredients such as silica (SiO2) in sand form, soda ash (Na2CO3) and limestone (CaCO3). The composition of the ingredient can be vary depending on it's purpose. Second, Put the ingredient into the melting furnace and then melt it at temperature of 1700 Celcius degree. Other materials can be added in this stage to form different colours, such as uranium for yellow and gold for red. Third, draw the molten glass into the forming machine. It can formed into many kind of products, for example car widescreen. Fourth, The basic form reheated and changed into final form and then the glass cooled to strengthen it form. Done, the glass is ready to use.

Making plate and bottle glass

There are several steps that must be followed to make plate and bottle from glass. First, we have to prepare all the basic materials. They are sand, soda and limestone. After that, we mix all of the materials and heat them into the furnace. The furnace must be heated up to 1200 C, until all the materials reach their melting point and become fluids. Next step, the fluids that now called molten glass are flown in to different path for shaping. To make plate glass, flow the molten glass through the rollers so that the molten glass can get its shape. To make bottle glass, pour the molten glass in to the removable mould. Flow air to the molten glass that already shaped. When the temperature gets lower, the molten glass become harder and ready to use.

Parluhutan Alvin Joseph
16607301