Commercial chains are made of wire with a
very small hole down its length which is filled with solder. The
links are machine formed and joined in whatever manner is
appropriate to the chain pattern. We now have a fully formed
chain lacking only the link soldering. The complete chain is
placed in an oven, a vacuum is drawn in the oven so there will
be no oxidation when the temperature is raised to solder melt
temperature. When the chain is removed from the oven ther is no
oxidation and no flux to be removed. Real neat!
I’d love to have some of this wire but have no idea if it is
available in the quantities that any of us would use (as compared
to commercial users) Any one know differently?