Well, you never know. Solder a pipe together, and leave it
for 30 or 40 years. Very possible.

--
Christopher A. Young
Learn more about Jesus
www.lds.org
..


"jeff_wisnia" wrote in
message
unications...


Quite likely the solder and the copper over time have
created
intermetallic compounds which have a significantly higher
melting
temperature than the original solder.

That's why you sometimes hear a squeeking noise like a dry
door hinge
when you've heated an elbowed joint plenty hot enough and
still have to
twist it back and forth while pulling on it to work it off a
pipe end.

Jeff

--
Jeffry Wisnia
(W1BSV + Brass Rat '57 EE)
The speed of light is 1.8*10^12 furlongs per fortnight.