[TheForge] Strengthening castable refractory

Fri Aug 22 11:13:00 2003

Hey Marc,
What castable are you using?
For most refractories (castable and inswool) I drill a series of
holes about 4" apart in the upper forge wall and then screw in ss screws
about 3/4 the thickness of the refractory.
With castable, screw the screws into under size holes in the wall and then
cast in the refractory.
With inswool make the holes slightly oversize and first install the wool and
then coat the screws with satenite and screw into the inswool.
After the first firing, the screws will be permanently bonded  into  the
refractory walls.
Chuck
----- Original Message -----
From: "Marc Godbout" <[email protected]>
To: "TheForge" <[email protected]>
Sent: Thursday, August 21, 2003 10:17 PM
Subject: [TheForge] Strengthening castable refractory


> I'm building a new forge. This one will have an arched roof made out of
> insulating castable refractory. The insulation will be in a metal shell
> - a half-pipe. Is there anything I could, or even should, do to
> strengthen it? Chances are it will crack at some time in the future due
> to heat. Since it's arched, a crack straight through will probably not
> affect much. But multiple cracks at the wrong angle could let a chunk
> fall out.
>
> I have a roll of stainless steel wire. Would using this as a sort of
> "rebar" make a difference? Any other thoughts?
>
> Thanks.
>
> --
> Marc Godbout
> http://www.ironringforge.com
>
> New England Blacksmiths Membership Director
> http://www.newenglandblacksmiths.org
>
>
> _______________________________________________
> http://mailman.qth.net/mailman/listinfo/theforge
> theforge mail list group photo site is
> http://www.photoaccess.com
> Login:  [email protected]
> password:  anvil
> ___________
>
>
>