Does anybody have experience with the Hot spot soldering
machine from Rio Grande? Can it be used on regular jump rings or
just with soldered filled jump rings? The catalogue said one
thing/their phone rep. another/my husband has an opinion....I'm
totally lost. Any help would be greatly appreciated.
I have extensive experience with this machine and I apologize for
the misunderstanding, but yes it can be used on both solder-filled
or regular jumprings. I'll share a little info on the differences of
Sterling solder-filled jumprings are actually fine silver with an
internal core of copper and then an internal core of solder inside
that (WOW, that is so cool!), that equals.925. Because the
solder-filled jumprings are fine silver externally they don't
oxidize or discolor when heated, so there is very little post
soldering clean-up work. Basically all you have to do is apply a
liquid flux, wipe off any excess, make sure the joint is very tight
Sterling silver jumprings need a paste solder added to the joint.
But you have to make sure none of the solder is touching the carbon
electrode as this will cause electrical arcing and scare or damage
the jump ring. By having to add the paste solder this increases the
production time in two ways. First, it takes time adding just the
right amount of past solder in just the right place. Second, after
soldering you now have typical post soldering clean-up work.
Hope this clears things up for you.
Rio Grande Technical Sales and Support