FW: Dear Rich REGARDING TITANIUM or ALUMINUM as an electrode

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Original poster: "Rich" <rdjmgmt-at-socket-dot-net> 




Subject: RE: Dear Rich REGARDING TITANIUM or ALUMINUM as an electrode

Yes , That is one thing I know. I was a machinist from 1963 until about
1982 and have burned a lot of Ti chips because they are so bright. They
burn like Magnesium. When machining it we kept a roll around bucket of a
black sand /powder handy for Mag and Ti fires. I think it was marked GI
powder.
  You can weld on it all day and it won't catch on fire.

Rich

-----Original Message-----
From: Tesla list [mailto:tesla-at-pupman-dot-com]
Sent: Saturday, August 14, 2004 9:45 AM
To: tesla-at-pupman-dot-com
Subject: Re: Dear Rich REGARDING TITANIUM or ALUMINUM as an electrode

Original poster: Terry Fritz <teslalist-at-twfpowerelectronics-dot-com>

Hi,

Titanium can "possibly" catch fire too, although it is not easy to
ignite
thick pieces.  Mill shavings can light up fairly easily.  Sand is just
about all that will put it out.  Happily, the fumes from burning
titanium
are not considered toxic.

Cheers,

          Terry

At 04:33 AM 8/14/2004, you wrote:
 >On Fri, 13 Aug 2004, Tesla list wrote:
 >
 > > Original poster: "Bill Ackley" <backley-at-satx.rr-dot-com>
 > >
 > > This metals have a valence of +3 or +4 if pushed hard enough, this
means
 > > that under the flux of high potential spark you will have a rapid
 > conversion
 > > to the metallic oxide.  Electrode metals, if they are to last should
be
 > > found on the periodic table with low valence & high melting point,
platinum
 > > would be nice if we could afford it.  Just a suggestion.
 >
 >This is sort of irrelevant, but I found that platinum + copper oxide +
 >some heat = nice fire and no more platinum. I guess the lesson is don't
 >use platinum near hot copper. I learned this by accident with a
formerly
 >nice platinum electrode. The fire was almost like burning magnesium
 >ribbon.
 >
 >KEN