[TheForge] Treadle forge

[GHS]

The reason I said density and not refractory quality is this.

In our propane or NG forges the flame is inside the kaowool or whatever 
along with the work. The object being to insulate and to heat the inside 
surface to the  glowing point  so that it radiates heat back into the 
cavity and thus to the work.

In a system in which the flame is in effect on the "outside", the area 
where the work is not, the object would be to heat the ceramic to the 
glowing point so that conduction and radiation would heat the work.

More or less the difference twixt an oven and a frying pan.

I have never set lava rocks to glowing as they dissipate heat pretty 
much  as it absorbs it. A higher density ceramic should store some of 
that energy as it gets to glowing. (less surface area as it relates to mass)
The stored energy work be released at the point where the cooler metal 
contacted it.

A glowing bed of anything should work as a forge.


Am a missing a big part somewhere? Could be I am still on the first cup 
of coffee.

Mike Graf

Jerry Frost wrote:
>>
>>>The density of the ceramic might play an important part.
>>>
>>>Mike Graf
> 
> I think refractory quality rather than density is the relevant factor in
> using ceramic chips Mike.
> 
> Frosty
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