Solder Problems (PDP-8/m related)

From: Pete Turnbull <pete_at_dunnington.u-net.com>
Date: Fri Dec 3 17:18:12 1999

On Dec 3, 16:35, CLASSICCMP_at_trailing-edge.com wrote:

> The indium-rich solders are *really* neat stuff, if you ever get a
> chance to work with them. Melting temperatures down to near room
temperature
> are available, as well as entire series of solder alloys with graduated
> melting temperatures for building up intricate assemblies. And many
indium
> solders will even wet and stick to *glass*.

Yes, you just reminded me of a visit years ago to an optical works owned by
a friend's father. How do you mount an unfinished non-circular glass lens
in a lathe (of sorts) to finish it? Answer: you take some LMP alloy such
as you describe, melt it in a short cylindical mould, float the lens on
top, let it cool, and mount the cylinder with glass attached in the lathe
chuck. To remove the alloy later, place it in a warm water bath.

-- 
Pete						Peter Turnbull
						Dept. of Computer Science
						University of York
Received on Fri Dec 03 1999 - 17:18:12 GMT

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