Hi Jim, Ros, and everyone,
I think that Ros was commenting on the movement of the mokume, but
that her question was mostly about soldering the bezel—that being
the way I understood her post, that is what I have been responding
when I tried soldering it onto 24 ga Argentium sheet, I either
couldn't get the solder to flow (it is a big piece), or had it flow
up the bezel.
That sounds like you did not have enough heat to get the larger
piece of metal hot enough.
I overheated, everything turned a terrible charcoal colour and
bumped/slumped/made a mess. Could it be my flame too? Oxidizing the
copper before it gets hot enough to flow the solder?
The charcoal color makes it sound like the flux burned out, due to
over heating, and/or due to an oxidizing flame, with too much oxygen.
These things can also happen if the solder is dirty or
oxidized—things to be avoided by cleaning and fluxing the solder.