Paul Raymond on sat 16 aug 03
I'm trying to figure out good firing schedules (bisque to C 06, fire to C=
6) for my electric kiln. I have a kiln controller with 8 segments which =
is a new world to me having been out of clay for a few years. I am having=
trouble understanding ramp rates and their coresponding temperature incr=
eases. How much power should I use and what temps? Just a good starting p=
oint would be helpful. =20
Thanks...
Paul
Les Haworth on mon 18 aug 03
Paul, Try this schedule for your bisque.
Les' Perfect Bisque Schedule.
Seg Rate (Per hr.) Temp. (Target) Hold
1 70 deg 210 deg 0
2 240 " 450 " 0
3 120 " 600 " 0
4 240 " 950 " 0
5 120 " 1400 " 0
6 180 " 1915 " 00:20
7 9999 1888 " 00:40
_____________________________________________
Solid Cone 6.
Seg Rate (Per hr.) Temp. (Target) Hold
1 120 200 0
2 240 1250 0
3 350 2185 0
4 99 2230 00:30
Enjoy.
Lester R. Haworth III
Sales and Technical Support
Laguna Clay Co.
14400 Lomitas ave
City of Industry, CA 91746
(626)330-0631 ext. 229
les@lagunaclay.com
www.lagunaclay.com
"I never collaborated with him or anyone else, ever. I mean, you don't
collaborate on your art with somebody. That's your own personal and only
thing that you have that's yours, period." ~ Peter Voulkos
-----Original Message-----
From: Clayart [mailto:CLAYART@LSV.CERAMICS.ORG]On Behalf Of Paul Raymond
Sent: Saturday, August 16, 2003 8:21 PM
To: CLAYART@LSV.CERAMICS.ORG
Subject: Help with firing schedule
I'm trying to figure out good firing schedules (bisque to C 06, fire to C 6)
for my electric kiln. I have a kiln controller with 8 segments which is a
new world to me having been out of clay for a few years. I am having trouble
understanding ramp rates and their coresponding temperature increases. How
much power should I use and what temps? Just a good starting point would be
helpful.
Thanks...
Paul
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Bob Nicholson on mon 18 aug 03
>I'm trying to figure out good firing schedules (bisque to C 06, fire
>to C 6) for my electric kiln. I have a kiln controller with 8
>segments which is a new world to me having been out of clay for a
>few years. I am having trouble understanding ramp rates and their
>coresponding temperature increases. How much power should I use and
>what temps? Just a good starting point would be helpful.
Hi Paul,
You don't say what type of controller you're using. My Bartlett came
with a pretty
good manual that showed sample firing schedules. It also has a good set of
preprogrammed firing tables. If you don't have a manual for your controller,
maybe you can call the manufacturer and get one.
"Mastering Cone 6 Glazes," by Ron Roy and John Hesselberth, has a couple of
good pages on firing rates. If you're working at Cone 6, you probably want
their book in your library!
I have a vague recollection that one of the magazines had a very good
article on
firing with electronic controllers about a year ago, but I can't find the issue
or even recall for sure which magazine. Maybe someone else on the list will
remember??
- Bob
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