[TheForge] blown forge

[Steve Bloom]

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