[TheForge] propane forge forced air

Thu Dec 20 11:45:10 2001

I have a nc tool 2 burner knifemakers forge. recently I decided to build a
manifold and add a forced air blower.
The manifold blows air through the venturi openings. I put a air gate on the
"in " side of the blower to control the air flow .
I am not seeing a great difference in the efficiency of the forge and the
scale seems worse than without the forced air.  do I need to adjust the size
of the jets? larger  or smaller?also the back of the forge is not getting as
hot as the front.     any suggestions?

----- Original Message -----
From: Mike Linn <[email protected]>
To: <[email protected]>
Sent: Wednesday, December 19, 2001 10:01 PM
Subject: Re: [TheForge] Re: hot vs cold rolled

> I got about 120 feet of A36 1/4" round  2 years ago , and I'll bet my last
> Dollar it was close to 1095.  It was so brittle it shattered like glass
> after a water quench. We use a lot of that size for s-hooks, match holders
> and plant hooks at demos. You forge one end the cool it off to forge the
> other. Damn stuff would break every time.....
>
> mike
>
> At 07:06 AM 12/20/01 -0800, you wrote:
> >Yes,  cold rolled has more strict requirements than hot rolled.  Hot
> >rolled is no longer 'mild steel'  it is A-36.  The tolerances are large.
> >You may find a bar of A-36 that will analyze out close to cold rolled but
> >the next will damn near qualify as tool steel.  At  one time I had the
> >chemical analysis for both cold and hot rolled but have no idea where it
> >is now.  Maybe someone on the list will post it,  I would like to see it
> >again.
> >
>
>          Michael Linn
>        Artist Blacksmith
>       McCalla, Alabama
>        AFC Webmaster
> http://afc.abana-chapter.com
>
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