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The
amount of metal that is needed to pour the piece is gradually
melted in a large bowl or crucible that is heated in a special
furnace. The metal is heated until it reaches a temperature
of 2,100 degrees.
At
the same time the cooled slurry shells are once again put
in the furnace and heated to 2,000 degrees in preparation
to receive the molten bronze. Heated shells will not crack
from a temperature change when the metal is poured into
it. The molds heat until the metal is melted and is ready
to pour.
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