Cindy said: I found that the most fool-proof method is the
no-pour method. Carve an ingot shape into charcoal (make sure of
good ventilation) and do the melt right in the depression.
There are many dvantages of heating metal directly in a charcoal
block with a carved depression:
-we all have charcoal lying around.
-you can carve any shape, depth and size you want using burs.
-there is no chance of spillage.
-you avoid the cost of an ingot mold.
-absolutely no chance of air bubbles being trapped.
-the reducing atmosphere created by the charcoal is very helpful in absorbing
oxides and keeping the metal clean.
Here is a tip on charcoal ingot making: to create a piece of
flat sheet, carve a flat bottom trough a little too wide for the
metal you are heating. When it is molten, remove the torch and
immediately take a chasing hammer and push the flat face onto
the metal for a few seconds. The metal will freeze very quickly.
This forces the top to become flat, not bubble-round which is
its natural tendency, so now top and bottom are flat.
Revere Academy of Jewelry Arts
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