Hi all, I’d like to add some additional questions related to Doug’s.
I’ve been told to heat my mold forming the ingot prior to its pour.
How hot should the mold be, and how can I heat it and the crucible at
the same time?
I made an ingot (well, sort of) from sterling scraps and was able
thin it out, slowly bearing down about 2/1000" at a time and carefully
annealing to a dull red. When I got the metal to about 24 guage and
tried to fold it I found that it was brittle so that it fractured
during the folding (I did anneal). I could see a granular texture at
the broken surface. Why should this occur?
How much borax should be added to the scraps? Also, how hot is "hot"
when heating the crucible. Do you pour immediately after all the
scraps have melted, or do you continually heat say for another couple
of minutes to raise the temperature of the melted sterling. (I use MAP
Looking forward to your responses.
(Be careful what you wish for because you might get it; we’ve been
wishing for sunny days and getting lots of them, and now we just might
be in a drought)