Snail Scott on sat 8 jul 06
At 10:20 PM 7/8/2006 +0530, Annapoorna wrote:
>hello
>i have a fibre kiln and it cools very fast, is there anyway of slowing the
>cooling rate without reoxidation??
The process of shutting down the kiln, letting
it cool a little, then relighting it and
firing for a short time is called 'striking'.
Since the benefits of slow cooling occur mainly
in the red-heat range, letting it cool partway
quickly and then striking will accomplish much
the same thing as a slow cool. Many people swear
by this method.
-Snail
annapoorna sitaram on sat 8 jul 06
hello
i have a fibre kiln and it cools very fast, is there anyway of slowing the
cooling rate without reoxidation??
have just begun to learn reduction and am planning on Celadons as my first
project.
thanking in advance
annapoorna sitaram
bangalore
india
Ann Brink on sat 8 jul 06
I have a kiln made of castable, except for the hard brick floor. There was
enough room on the sides after the shelves were placed for me to make a
stack of hard refractory bricks against the side walls. This slowed the
cooling for me. I just went partway up.
Ann Brink in Lompoc CA
----- Original Message -----
From: "annapoorna sitaram"
> hello
> i have a fibre kiln and it cools very fast, is there anyway of slowing the
> cooling rate without reoxidation??
> have just begun to learn reduction and am planning on Celadons as my first
> project.
> thanking in advance
> annapoorna sitaram
> bangalore
> india
>
threereeds1 on sat 8 jul 06
annapoorna,
I have a fiber kiln, a conversion from a raku project.
the kiln is @ 2x2x2 feet. (.64 meters) each way. Fiber top
of the kiln is 2 inches of 8# blanket. I have intentionally
used thick and dense shelves and posts. The floor is made of
dense firebrick. The perimeter of the firebox is made of a few
courses of 2600 degree F insulating firebrick. A cone ten
firing takes nearly 24 hours to open at about 200 degrees and
the flue has been dumping heat (updraft) open 1 1/2" by 8" for
about five hours. The bottom is kept closed up tight.
On my last firing this kiln was glowing bright pink/orange
at least five hours after burner off, when I went to sleep.
a tight kiln and that thermal mass apparently are doing the
trick. An overfast cool cycle was a concern when I thought
of converting the raku to cone 10.
Only other option I can think would help is firing down for a
long time.
Hope something here helps.
tom king
----- Original Message -----
From: "annapoorna sitaram"
To:
Sent: Saturday, July 08, 2006 11:50 AM
Subject: slow cooling in reduction firing
> hello
> i have a fibre kiln and it cools very fast, is there anyway of slowing the
> cooling rate without reoxidation??
> have just begun to learn reduction and am planning on Celadons as my first
> project.
> thanking in advance
> annapoorna sitaram
> bangalore
> india
>
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