I have a question regarding soldering. I've been taught when
soldering hollow forms you should always have a hole in your piece
to let the heat escape.
Janice, It does sound confusing, but the simple 'trick is: The
first time you solder something 'sealed' together, like a 2 part
bead, a tube earring etc, you are sealing in air for the first time.
But you must not linger at that last solder....solder it closed and
take the heat off. The danger lies in soldering an already sealed
item, as the air inside will expand with the heat and must have a
small hole drilled somewhere inconspicuous (to be sealed safely[if
you want]AFTER the work is done)
I just finished taking_Jewelers of America Certified Bench Jeweler
course...some of the jobs took some concentration, but one was very
easy, IF, you knew about drilling a air release hole, tricky if you
didn't.. It was a pair of sealed half dome earring to have post
soldered to. Therefore, you had to drill a hole at he bottom, solder
post, and seal hole to finish piece. the last solder seals the air
but by doing it quickly...doesn't heat up enough to expand.
25 years ago I didn't know this and was soldering a broken post back
on a sealed ster. silver hoop e/r. I was leaning close when the e/r
exploded! with ,what sounded louder than a firecracker. Ripping the
seam on the e/r and ruining it. My eardrums were not the same for a
week!_ Thomas Blair