3 Dec
1999
3 Dec
'99
5:50 p.m.
Pete Turnbull wrote:
Apologies in advance for perpetuating this off-topic thread, but at
the optical shop where I worked one summer during my college years,
the "LMP alloy" used for such jobs was either "wax" or
"pitch" (pine
tar), not anything as esoteric as indium metal.
-- Jim McCarthy
jkmccarthy(a)pacbell.net
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.