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.