[TheForge] blown forge

[Dan Scheid]

Steve please do this is exactly where I was going. 
Dan


-----Original Message-----
From: theforge-bounces at mailman.qth.net
[mailto:theforge-bounces at mailman.qth.net] On Behalf Of Steve Bloom
Sent: Wednesday, September 04, 2013 7:58 PM
To: Blacksmithing List Sponsored by ABANA
Subject: Re: [TheForge] blown forge

At 07:14 PM 9/4/2013, you wrote:

>I have a side draw burner venturi propane forge (used a tee for air 
>intake) with time and tricks my forge gets to welding temps It is right 
>at the 2350 but I'm greedy . I want more heat 2600-3K  would be a dream 
>so I'm thinking of adapting these burners to blown .

My purpose built Damascus forge has two venturi burners -- 0.040" 
orifices with a useable range of 5 to 15 psi on LP.  Volume of the forge is
18" x about 4" x 4".  I added a small squirrel cage, a flex 3" dryer hose
and a box manifold that slips over the bells of the burners.  There is a
slide gate in the flex hose-manifold interface.  At full blow, the 3000 F
refractory starts to melt.  At half or less, welding heat for billets with
O1/L6/203E are easily reached at 10 psi.  The maximum output of the blower
is a slight breeze.

If anyone is interested, I can post a image of the rig on my website.

Steve

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No virus found in this message.
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Version: 2013.0.3392 / Virus Database: 3222/6639 - Release Date: 09/04/13

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Checked by AVG - www.avg.com
Version: 2013.0.3392 / Virus Database: 3211/6613 - Release Date: 08/27/13
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