60/40 vs. 63/37 Solder

[Fred Abse]

On Sun, 18 Jul 2010 01:47:09 -0400, Michael A. Terrell wrote:

I would NEVER add a pound of solder to an existing solder pot at one
time. When I bought my 6" diameter solder pot I had enough used solder to
more than fill it. It came from the use of a smaller solder pot to
salvage ICs from scrap PC boards. Float the board, then tap the corner of
the solder pot. A bunch of solder balls hit the aluminum plate the pot
was on. I would use a large pair of channel lock pliers to pick up the hot
pot to pour out some solder into a small aluminum pan, then dump all the
loose solder into the pot.

So you don't really know the composition of the solder in the pot, or how
much copper, gold, etc. contamination there is?

--
"For a successful technology, reality must take precedence
over public relations, for nature cannot be fooled."
(Richard Feynman)

 

[Michael A. Terrell]

Fred Abse wrote:

On Sun, 18 Jul 2010 01:47:09 -0400, Michael A. Terrell wrote:

I would NEVER add a pound of solder to an existing solder pot at one
time. When I bought my 6" diameter solder pot I had enough used solder to
more than fill it. It came from the use of a smaller solder pot to
salvage ICs from scrap PC boards. Float the board, then tap the corner of
the solder pot. A bunch of solder balls hit the aluminum plate the pot
was on. I would use a large pair of channel lock pliers to pick up the hot
pot to pour out some solder into a small aluminum pan, then dump all the
loose solder into the pot.

So you don't really know the composition of the solder in the pot, or how
much copper, gold, etc. contamination there is?

No need to, really. it was used to salvage parts and tin wire. Most
of the boards were soldered with 80/20 so i had to add some scrap lead
from time to time, to lower the melting point. The other metals didn't
hurt anything.


--
Anyone wanting to run for any political office in the US should have to
have a DD214, and a honorable discharge.