I think I turned up the heat too high on the electromelt because a
chip broke off the rim of the graphite crucible. I thought, ok, no
big deal, and kept on melting stuff. However, when I went to pour
and touched my tongs to the crucible to hold it in place, it shorted
out. I tried resetting the power, to no avail. I went ahead and
poured the silver into the flask I had waiting, figuring that even
with the power off for a couple of minutes it would still be hot
enough and it was. That flask was my best one of the afternoon, with
all eight elements coming out perfectly – thank goodness!
I let the electromelt cool and tried to figure out what was
happening. When I used tongs to lift out the crucible, half of it
came out and I saw that the bottom of the electromelt had the
remaining half of the crucible with a hunk of hot silver in it. I
tipped it over onto a flameproof surface, not wanting the silver to
solidify in the electromelt. So, I dumped out the broken crucible
with the silver. However, I can’t tell what is at the bottom of the
hole now. It looks to me like solidified molten metal, but I thought
I had gotten it all out.
So, how do I go about figuring out what is at the bottom of the
hole? Do I have
to replace the lining to the crucible as well as the crucible? The
whole machine? I just bought it this summer – eek!