how the windshield started
Post on 18-Aug-2015
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The windshield became popular because it was an improved way to protect yourself
and your passengers from wind and debris.
Instead of helping people, the shattering glass on impact would actually cause more injuries, then the windshield was meant to
protect.
A special formula consisting of silica, soda ash, dolomite, cullet, and limestone mixed together, and then sent through a chamber
known as the float chamber.
The intense heat of the chamber causes the glass mixture to float above the molten tin while removing any impurities within the
glass.
As the glass exits the float chamber the change in temperature causes the glass to harden just enough to move into the next
chamber.
This temperature allows for the annealing process where the glass is cooled slowly to
make it stronger.
The section of glass is now placed into a mold that is heated to allow the glass to take
the shape of a windshield.
A layer of poly-vinyl butyral is sandwiched between two sheets of tempered glass and
heated with an autoclave.
Being shatter resistant and coated to reflect some of the sun’s rays the windshield has
now become one of the car’s most important designs and safety features.
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