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Joerg <notthisjoergsch@removethispacbell.net> wrote in
news:jIQmj.41809$Pv2.17509@newssvr23.news.prodigy.net:
Anthony Fremont wrote:
Joerg wrote:
Now I just have to get a sample, find some really good conductive
epoxy that will hold up in tropical climates and we'd be home.
My favorite 2-part conductive "glue" is made from tin and lead. Can't
recall the name though. ;-)
Can't solder or weld here, it's a 3mm steel panel with plastic on the
other side. Which also kind of precludes heat-cure stuff such as Loctite
3880.
What margin for temperature? Even the tropics should leave you enough to try
one of various indium based solders.
Joerg <notthisjoergsch@removethispacbell.net> wrote in
news:hNQmj.41810$Pv2.10998@newssvr23.news.prodigy.net:
They say "New lamination materials are available that can be processed
at even lower temperatures like 80°C." That's still a bit highish but I
wish they had mentioned some manufacturers.
Ok, maybe indium solder then, like I mentioned in another post. 73.8°C for
65% In 35% Bi.
O. K. A. Metalloids in NY make it, I think. It should work well with a resin
flux.
And if anyone knows a good thermally conductive epoxy to bond a thin
(0.5mm) layer of copper onto a thick (>3mm) aluminium base with very
strong bonding and very good thermal conductivity, please post. I don't
mind if it's electrically conductive or not, it must be low viscosity
though, to form a very thin strong bond with no voids.
Wish I could help but that's really outside my expertise. Maybe contact
a Loctite engineer about it?
Maybe but I want to see what general advice I might get before turning to a
specific manufacturer.