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- Path: sparky!uunet!dtix!mimsy!gatech.edu
- From: emory!ke4zv!gary@gatech.edu (Gary Coffman)
- Newsgroups: rec.guns
- Subject: Re: Silver Soldering
- Message-ID: <1992Dec23.161123.24293@ke4zv.uucp>
- Date: 23 Dec 92 17:17:56 GMT
- Sender: magnum@mimsy.umd.edu
- Organization: Gannett Technologies Group
- Lines: 26
- Approved: gun-control@cs.umd.edu
-
- In article <1992Dec22.182959.18983@cbfsb.cb.att.com> osan@cbnewsb.cb.att.com (Mr. X) writes:
- #In article <1992Dec22.035540.5903@ncsu.edu> hes@unity.ncsu.edu (Henry E. Schaffer) writes:
- ##
- ## Brownells has one high silver content solder "Silvaloy 355 Silver
- ##Solder" which is "56% silver; Cadmium-Free" and melts at 1145 F, flows
- ##at 1205 F.
- #
- # Question is, can you heat a barrel to that temp. without wrecking it?
- # I am highly skeptical that this can be done. It will certainly
- # draw the temper out of the steel, which will leave it 1/2 hard at
- # the very best, abd probably less so. Not only that, but heating a
- # barrel to that temp., especially at one end only, is virtually
- # guaranteed to distort the barrel over its length. Hard soldering
- # seems to be right out, as far as I can see. Anyone know anything
- # to the contrary?
-
- In general, barrels are not high carbon steel. Therefore they are not
- quench hardened like knives and springs. So concern about drawing the
- temper of a barrel is not warranted. The alloys are simply naturally
- hard enough, especially the stainless alloys. Worrying about warping
- the barrel is a concern. Use of a clay "heat dam" near the muzzle would
- be advised for front sight installations. It's also a good idea to let
- the work air cool slowly to prevent "setting" any strains that may
- develop.
-
- Gary
-