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- Path: sparky!uunet!zaphod.mps.ohio-state.edu!darwin.sura.net!haven.umd.edu!mimsy!cbnewsb.cb.att.com
- From: osan@cbnewsb.cb.att.com (Mr. X)
- Newsgroups: rec.guns
- Subject: Re: Silver Soldering
- Message-ID: <1992Dec21.204825.4581@cbfsb.cb.att.com>
- Date: 22 Dec 92 00:00:42 GMT
- Sender: magnum@mimsy.umd.edu
- Organization: Twilight Zone
- Lines: 36
- Approved: gun-control@cs.umd.edu
-
- In article <1992Dec17.230317.28404@btree.uucp> btree!andy@UCSD.EDU (Andy Bosik) writes:
-
- #Hi! I heard a while ago somewhere that You can
- #"Silver-Solder" a flash hider perminently to
- #a barrel (As on a CAR-15 type rifle).
-
- Don't see why not...
-
- #I was wondering,is this the same type of
- #"silver-solder" that can be bought at any
- #Rat-Shack? Or is this a speacial heavy-duty
- #grade?
-
- Probably is. The critical question is melting point. You COULD
- hard solder this, but that requires temperatures in the neighborhood
- of 1400 degree F. To appyly this heat to a muzzle would draw the
- temper out of the steel and your barrel would burst in short order.
-
- The soft, plumbers solder melts around 400-450 degrees, approx. This
- would be similar to using lead solder except that the silver solder
- is less toxic and a bit tougher. As to whether or not there is some
- special eutectic alloy for gunsmithing, I do not know. Anyone?
-
- BTW a "eutectic" alloy is one where the proportions of one element to
- the other produces the lowest melting point. In hard silver solders
- (Ag-Cu alloys) the eutectic is somewhere in the upper-mid 1300s, if
- I remember well). Plumbers silver solder are Ag-Sn (Tin) alloys
- with a much lower melting point (and strength).
-
- -Andy V.
- #
- #
- #
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