Glass:
- Glass is an inorganic product of fusion of one or more oxides of silicon, boron, magnesium, calcium, sodium etc.
- It is a versatile engineering material due to its advantages in various engineering fields.
- It is a mixture of a number of metallic silicates.
- One can use varieties of it in building construction work for various purposes.
- It is manufactured by mixing raw materials like soda ash, limestone, sand, sodium sulphate etc. according to the final requirements.
- One melt the mixture by heating it in a furnace around 1500 degree celsius.
- The molten glass is then shaped by different methods.
Properties:
The different properties are as follows:
- Firstly, It acquires any colour.
- It is brittle, hard, translucent or transparent.
- One can only weld the glass pieces by process of fusion.
- Has no sharp melting point.
- It can take good polish but affected by alkalies.
- In addition, it provides excellent electric insulation.
- Lastly, One can change its viscosity by heating and cooling.
Uses of different types of Glass:
The uses of different types are as follows:
- Firstly, One uses Soda lime type for making window panes, glass tubes, simple glass etc.
- One can use Potash lead type for making lenses, radio valves, table ware etc.
- One uses the common type for making medicine bottles.
- One can use Borosilicate type for high quality laboratory apparatus and cooking utensils.
- One uses fibre type in air filters to remove dust.
- Lastly, One can use foam type in air conditioning and refrigeration industries.
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