How do they make glass?
Like do they melt the sand and then pour it into a mold or what? how do they make like just glass panes?
I was just wondering
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A glass ceramic or glass-ceramic sheet is formed by progressively reducing the thickness of the sheet by passing the sheet between successive pairs of counter-rotating rollers. The average viscosity of the sheet is maintained between 5.times.10.sup.4 and 10.sup.9 P during the sheet forming operation.
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“The float process developed after the Second World War by Britain’s Pilkington Brothers Ltd., and introduced in 1959, combined the brilliant finish of sheet glass with the optical qualities of plate glass. Molten glass, when poured across the surface of a bath of molten tin, spreads and flattens before being drawn horizontally in a continuous ribbon into the annealing lehr.”
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ok easy answer to your Q-
its sand, lime, soda ash and some iron- yes they heat the ingredients to like 2600F- then it is poured onto tin (almost like a huge cooke sheet) and it floats across the top of the tin (hence the term float glass) – sometimes the tin has a texture on it to texture the glass-
know how they used to get air bubbles in the glass? they used to throw a potato in the molten glass, it would explode and make lots of bubbles – then it would be pured and cooled quickly to keep the air bubbles in it! (this was 100 or so years ago!)
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i think they heat up sand then they blow it up and mould it and stuff lol.
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