I have on hand about 100 lbs of 63/37 solder bars
that came from the wave soldering machine of one of
your competitors at microdyne. I know it is what
they used because it came with the wave soldering
machine when it was scrapped.
Also, when I worked for DEI back in the '70s, they
used 63/37 for their reflow machines.
On boards that get solder plated, the alloy is somewhat
imprecise, and it is possible that the imprecision of
that plated alloy will have diluted the 63/37 solder
to make it have a higher melting point.
But as a former solder plater, I can assure you that
we tried very hard not to let the alloy shift much
because it made the reflow process fail.
-Chuck Harris
Michael A. Terrell wrote:
...
Also, keep in mind that the solder used for wave soldering has a higher melting
temperature than that used for hand soldering. If you don't get it all out on the
first try, refill the through hole with 63/37 solder and try again.
