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Flat glass is almost exclusively "Float Glass" now.
Developed in the 50's, glass is molten on the surface of a pool of lead, tin, or other fairly low melt point metal, and drawn off as an extrusion.
https://www.youtube.com/watch?v=JMGkbrETU8M
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Very large tooling sheets. Ship bow plate etc, requiring extreme tensil strength.
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Ship bow plate made from Float glass?? #521
Ralph
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Is 2,000 F the temperature of the glass or is the temperature of the tin, because it seems awfully hot for tin.
I think 2,000 F is the temperature of the glass when it starts to flow over the tin and it when gets pulled off at the end it has dropped below 1,200F and solidified. Unfortunately I have no idea of what temperature the tin is held.
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Quote:
Originally Posted by
McDesign
The front fell off!
It fell into the ocean, clearly.
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On its way to get a crank and rods...
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Wonder how long that 4" x 4" holds up?
Ralph
