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Power outage near the end of firing


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#1 jpclay

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Posted 15 October 2012 - 12:29 PM

So, yesterday afternoon the power went out while the kiln was bisque firing. I saw the temp when it was over 1600, on the way to ^06. I see today the ^07 has not moved, but I think it probably stopped at about ^08, so I think I can adjust to that. My question is about the clay gases releasing, because the vent stopped when the kiln stopped. The kiln was closed and unvented until early this morning when I was able to restart the vent. Do you think there is a problem with the clay not being vented on the decline temps. Any thoughts? Thank you!

Julia Paul
juliapaul.com

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#2 AndyL

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Posted 15 October 2012 - 01:32 PM

Since it's bisque just refire.

#3 Mark McCombs

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Posted 15 October 2012 - 02:26 PM

Since it's bisque just refire.



That and understanding why the power went out and that it was unrealated to the operation of the kiln.
Mark
Fast Hawk Pottery


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#4 jpclay

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Posted 15 October 2012 - 05:14 PM

The power outage was widespread. Maybe re-fire on faster schedule since it is basically already cooked.

Julia Paul
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#5 neilestrick

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Posted 15 October 2012 - 06:41 PM

If you got to 08 I wouldn't bother with the refire.
Neil Estrick
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#6 Cass

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Posted 15 October 2012 - 07:29 PM

agree with niel, if the the stuff is hard and can be handled/glazed, just go with it

#7 jpclay

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Posted 15 October 2012 - 07:52 PM

With further reading, I see that carbonaceous materials burn out between 500°F–1450°, which leads me to believe that if the pieces are hard enough, the impurities should be burned out and the clay should be ok for glazing.

Julia Paul
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#8 Mark C.

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Posted 16 October 2012 - 02:57 PM

you will be fine-my kiln has no vent and I bisque to 08-no worries
Glaze it up and move on.
Mark
Mark Cortright
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