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fast cone 10?

updated mon 19 oct 09

 

Chris Campbell on sun 18 oct 09


I am 100% on board with the wonders
of slow cooling ...
but could you expand a bit more on
the fast firing to Cone 10?
Why and How Fast?
How does it apply to electric?

Chris Campbell - in North Carolina
Chris Campbell Pottery LLC
Designs in Colored Porcelain
9417 Koupela Drive
Raleigh NC 27615-2233


919-215-8644
Fax: 919-676-2062
www.ccpottery.com
http://neriagechris.blogspot.com/

William & Susan Schran User on sun 18 oct 09


On 10/18/09 1:06 PM, "Chris Campbell" wrote:

> I am 100% on board with the wonders
> of slow cooling ...
> but could you expand a bit more on
> the fast firing to Cone 10?
> Why and How Fast?
> How does it apply to electric?

Much depends on your circumstances and how your equipment can perform.

I used to fire my ^6 crystalline glazes to top temperature in 4 hours.
A 4 cu ft manual electric, stated firing with all switches on high.
Thinnish porcelain forms could withstand the rapid heat rise very well.
My ^6 crystal firings are now 5/6 hours as a slow down near the end for
additional heat work, but I still have 4-5 hours of holding in the 1875 -
1950F range.

Our ^10 reduction firings at school took 8 hours, then 2 days to cool.
We now fire to ^6 reduction, 6 hours, still 2 days to cool.
Great copper reds, temmokus, celadons.

Bill

--
William "Bill" Schran
wschran@cox.net
wschran@nvcc.edu
http://www.creativecreekartisans.com