I have been playing around with constructing some things out of
fused Argentium Silver and when it works it is really cool!This is
just for fun and the learning process right now but I am having some
issues which might be due in part to my inexperience with gold and
silver smithing. Ihave picked up a lot of theory over the years but
the practice lags far behind.I am using the following things:Rio
My-T-FluxPropane/Oxygen Smith Little torch (the local gas supplier
says that it is possible that there is up to 30% Methane mixed in
the propane, but most jewelers locally use it on gold with no
problems).Sulfuric Acid pickle (Does it lose its potency with
time??) Ultra Sonic with some sort of Ammonia and soap like solution.
(The bottle broke and I switched it into another one so what exactly
it is has been lost.) I am fusing on a compressed charcoal block
purchased from Rio GrandeI try to clean off the pieces with a light
sanding, or wire brush and dish soap before fusing. Often I also will
pickle or Ultrasonic and Pickle before fusing to try to get as clean
a surface as possible. The problem is that the results I am getting
vary a fair bit and I don’t know why. Sometimes it looks just like
the instructional DVDs I got (from Ronda Coreyell, really like them)
and you can tell the fusion is working, after cooling the piece is
very pretty and “silvery” with just some beads of flux on the
surface which come off easily in the pickle. At other times it gets
orange hot and to me seems at least as hot as when it fuses but you
can just tell that in spite of the glow there is not that liquid
mercury look to the surface and things are NOT fusing. Often
afterwards the surface (especially when quenched after cooling just a
bit?) will have what I call a reddish or blackish “patina” for lack
of a better name. I associate this in my mind with the presence of
some sort = of chemical or something on the surface of the metal
during heating but I don’t know what it is exactly.My hope is to get
consistent results with this (my sister and mother have gems they
want set!) but to do so I need to know why things work sometimes and
not at others. Anyone have experience with issues like this that can
help me out?
Regards,
John Dyer