Manufacturing process of glass, Chemistry

Q. Describe the manufacturing process of glass.

Ans. Manufacturing process of glass

1.      Melting: Raw materials, in proper properties mixed with pellets, are finally powdered and intimate mixture is fused in either finely pot or tanks part of an open hearth furnace, in which heating is done by burning producer gas and air mixture over the change. At high prevailing temperature the charge melts fuses. The melting process in case of ordinary soda glass involves following reactions.

CaCO3 + SiO3 = CaSiO3 + CO2

Na2CO3 + SIO2 = Na2SiO3 + CO2

When all the CO2 has escaped out of the molten mass, decolourizer are added and if coloured glass is desired then colouring agent is added, heating is continue till the molten mass is free from bubbles and glass balls, and then cooled to about 8000C.

2.      Forming and shaping: Molten glass is then worked into articles of desired shapes by both blowing and moulding.

3.      Annealing: The glass articles are allowed to cool gradually at room temperature by passing through different chambers with decreasing temperature, this is known as annealing.

4.      Finishing: Cleaning, grinding, polishing, cutting, sand plastic etc. Are completed in this process.

Posted Date: 7/21/2012 7:28:14 AM | Location : United States







Related Discussions:- Manufacturing process of glass, Assignment Help, Ask Question on Manufacturing process of glass, Get Answer, Expert's Help, Manufacturing process of glass Discussions

Write discussion on Manufacturing process of glass
Your posts are moderated
Related Questions

discovery of neutron becomes very late because

Q. Show the diffrent kind of matter? Liquid matter has a specific volume like a solid but flows and takes the shape of its container. A liquid is incompressible for the reaso

The number of electrons in the valence shell of calcium is: (1) 6        (2) 8        (3) 2        (4)4 Ans: 2


The bond between two identical non-metal atoms has a pair of electrons: (1) Unequally shared between the two (2)  Transferred fully from one atom to another (3) With iden

An analysis of the state of the Brazilian chemical industry in 1998 revealed that the actually used technologies were transferred in a period where industrial waste generation, tre

can i use eriochrome black t instead of murexide in complexometric titration of copper with EDTA


1. Alcohols and amines are both nucleophilic. Explain why this reaction occurs to form Benadryl (diphenhydramine) 2. Outline a reasonable synthesis of the following: