[TheForge] atmospheric forges getting hot

[Ralph Sproul]

This castable refractory nozzle with the 40 some odd holes sounds like the
ones made for glass blowers heating large kilns.  If you put one of those in
a confined space you certainly have heat - they do require a blower.

Chuck? - I noted mentioned NOT using compressed air - were blowers being
considered for getting temps above 2500?  Or was the question just naturally
aspirated burners?

Ralph

----- Original Message -----
From: "Ries Niemi" <rniemi at fidalgo.net>
To: "Sponsored by ABANA" <theforge at mailman.qth.net>
Sent: Monday, May 30, 2005 1:37 PM
Subject: Re: [TheForge] atmospheric forges getting hot


>
> On Monday, May 30, 2005, at 08:17 AM, Chuck Robinson wrote:
>
> > I'd like to hear from anyone who uses an atmospheric propane burner of
> > any design that actually has accurately measured a forge temperature
> > hotter than 2500 F-
> > with out usig auxilliary O2,  compresser air or a blower boost.
> > Chuck
> >
>
> Chuck- I am pretty sure mine does, but I have never measured it.
> Mine is an atmospheric design developed by the amazing Phillip Baldwin.
> Starting at Carbondale in the late 70's, Phillip and a few others have
> been refining atmospheric forge burners.
> He manufactures MokeMegane, and he needs controllable high temps for
> his processes- he has digitally controlled propane forges and furnaces
> that are capable of quite high temps.
> The forge I am currently running, which is one of his latest designs,
> is a cast refractory cylinder, with cast refractory ends. 2" of kaowool
> is wrapped around the outside- none on the inside. The burner itself
> features a Baldwin forged from pipe mixing chamber, and a cast
> refractory burner tip that is approximately 4" in diameter, with maybe
> 40 small orifices, each about 1/8" in diameter. Air/gas mix is
> controlled by a sliding gate well before the burner.
> You might email Phillip at his website- www.shiningwave.com
> and ask him more about his designs.
> He forge welds in them all the time, and does a wide variety of highly
> controlled mokeme, as well as ferrous laminations. He also uses them
> for accurate heat treating of knives and swords- they are probably just
> what you are looking for.
>
> Me, I am just an ignorant user of them- but Phillip has evolved these
> designs over 20 years, and he really knows what he is doing. They are
> quiet, very hot, and very nice forges to use.
>
> ries
>
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