John & Anne Worner on sat 19 apr 97
Hi!
We am still experimenting with getting a good firing schedule for our
Skutt 1027 with automatic controller.
If someone could direct us to literature on this, or help us we
would appreciate it greatly.
Zakin and Fraser say in their books that a 15-30min. soak at the
glaze firing temperature or appropriate cone is advantageous.
However, doesn't this soak add extra heat work to the ware, and cone
and exceed the targeted cone "temperature"?
Our understanding is that cones continue to bend even after the
kiln is shut off.
Should we maybe set a lower target temperature so we can achieve
the soak without exceeding the heat work we are trying to achieve,
or does the glaze have to reach its cone temperature?
Gratefull for any help!
John and Anne Worner
wefirehi@hal-pc.org
Paul and C2 on sun 20 apr 97
We once had a broken element in our kiln and the firing took 3 days before
the computer shut itself off at 1260C. The temoku glaze turned out GREAT
while the rest of all the students work were runny and destroyed. So I
guess it depends on which glaze you use before you decide how long you
soak.
Caroline Cheng
Hong Kong
stevemills on mon 21 apr 97
In message <335771BE.7382@hal-pc.org>, John & Anne Worner pc.org> writes
>----------------------------Original message----------------------------
>Hi!
>We am still experimenting with getting a good firing schedule for our
>Skutt 1027 with automatic controller.
>If someone could direct us to literature on this, or help us we
>would appreciate it greatly.
>Zakin and Fraser say in their books that a 15-30min. soak at the
>glaze firing temperature or appropriate cone is advantageous.
>However, doesn't this soak add extra heat work to the ware, and cone
>and exceed the targeted cone "temperature"?
>Our understanding is that cones continue to bend even after the
>kiln is shut off.
>Should we maybe set a lower target temperature so we can achieve
>the soak without exceeding the heat work we are trying to achieve,
>or does the glaze have to reach its cone temperature?
>Gratefull for any help!
>
>John and Anne Worner
>wefirehi@hal-pc.org
Yes soaking does add extra heatwork to your wares,but that amount is
unlikely to overfire them, it simply gives your glazes time to settle
and get"comfortable"on the pots. The same effect as firing with a much
slower schedule. We find slow fired glazes have a quality all their own.
Ask any woodfirer.
Steve
--
Steve Mills
@Bath Potters Supplies
Dorset Close
Bath
BA2 3RF
UK
Tel:(44) (0)1225 337046
Fax:(44) (0)1225 462712
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