In message <325F1A59.3AF7@connecti.com> you happened to mention:
Wonder if you have ever tried the mix of 20% cartridge brass and 80%
sterling or fine silver?It makes a good medium solder that I find is
about the same melting point and flow point as commercial medium
solders.Also wanted to note that some electric wire contains other
metals in addition to copper, beryllium is one and sometimes nickle and
these are added to electric wiring to increase the heat resistance of
the copper.Pure copper can be obtained as shot from the chemical supply
places among others...Gavin
I have tried the brass mix - well my students did, ... and very successfully.
The cartridge brass is important as you may well know - 70/30 and nothing
else than Cu and Zn.
I doing a few typos here - it's election night here - Sat night and we're ll
huddled arounf the telly. I thought I'd try the Net to get some early results
(10 min to 10 Sat night) but I got way-layed by my mail.
Ahh, abput the elec wire, over here it's renowned to be THE purest Cu we can
get that's free (or about $4/kilo), and the local refineries use it, I've heard.
The conpany that produces it, MICO-Wakefield, claim it's got less oxygen than
their own (pure) copper sheet.
So 80% sil/20% brass: My eutectic is:
sil 80% 72%
copper 14% 28%
zinc 6% -
Brian (plus a little aussie shiraz)
BRIAN ADAM - on Acorn RiscOS - NEW ZEALAND
Eyeglasses, optica-absurda ... and other sight-specific jewellery
Edit Edit Edit!!