Hi Rudy
That much I knew, I actually used to build bicycle frames a long time
ago... There is a Reynolds 531 tube with Cinelli lugs frame hanging in
my stairway, my wife hasn't managed to convince me that it isn't
artwork. J
What I need to know is what that specification would cross reference to
in modern terms (e.g. is there a J-STD-006 alloy that this matches)?
Can I call one of the big materials vendors and ask them for it?
regards,
- Graham
From: R Sedlak [mailto:[log in to unmask]]
Sent: Thursday, February 11, 2010 1:54 PM
To: TechNet E-Mail Forum; Collins, Graham (FN) @ ESI
Subject: Re: [TN] Old reference for silver solder - what's it cross ref
to?
Graham:
This is from Wikipedia:
"Silver solder is also used in manufacturing to join metal parts that
cannot be welded <http://en.wikipedia.org/wiki/Welding> . The alloys
used for these purposes contain a high proportion of silver (up to 40%),
and may also contain cadmium <http://en.wikipedia.org/wiki/Cadmium> ."
Believe it or not, hand made steel frame racing bicycles were often
silver soldered, as you don't need to heat the metal as hot, as when you
braze. And the bond is STRONG.
Rudy Sedlak
--- On Thu, 2/11/10, Graham Collins <[log in to unmask]> wrote:
From: Graham Collins <[log in to unmask]>
Subject: [TN] Old reference for silver solder - what's it cross ref to?
To: [log in to unmask]
Date: Thursday, February 11, 2010, 9:42 AM
Hello Technet
I seem plagued with strange solder questions these days. Can somebody
help with a cross-reference from an old solder callout to what this
would be referred to as now? I have a drawing that references:
"QQ-S-571 alloy 94LTS Type WRAP3", and refers to it as "silver solder".
I can get the last version of QQ-S-571 (rev F, before it was cancelled
and J-STD-006 adopted), but I do not see this type of callout. Does
anyone have something that will tell me what's in this solder?
Thanks!
Graham Collins
Halifax Production Engineering
L-3 Communications ES
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