Ron Roy on sun 22 aug 04
Maybe the right thing to do is use the same cones - as they have recorded
whatever heat work has been done already.
If you put in new cones - and some heat work has happened - then your
bisque will be fired a little higher.
If the ware got over 573C (1060F) and survived the cooling quartz inversion
- you should not go too fast through the quartz inversion on the way up the
second time. Underfired bisque does not do well during the quartz inversion
- on the way up or on the way down.
If you unstack and check to see if any are cracked - then you will know in
which cycle it happened if any dunting occurred.
RR
>Jaymes wrote:>So I fired up the kiln on Saturday.....only to lose
>power about half way through the bisque fire.<
>
>Ok to refire, put in new cones.
Ron Roy
RR#4
15084 Little Lake Road
Brighton, Ontario
Canada
K0K 1H0
Phone: 613-475-9544
Fax: 613-475-3513
Jim Smola on sun 22 aug 04
Okay...this has never happened before....I'm one of the unfortunate ones =
that just went through hurricane Charlie...lost power for 5 days....but =
when it came on I had a kiln loded w/greenware to bisque fire (^6). So I =
fired up the kiln on Saturday.....only to lose power about half way =
through the bisque fire.
Can I re-fire this load or are there any other precautions that I need =
to take into consideration?
I've double checked all items and they "look" like bisque ware but I =
know they aren't. The cones on the shelves have not been altered in any =
way either. Do I replace the cones before re-firing?
Thanks!
The Pottery Pimp
Jaymes
william schran on sun 22 aug 04
Jaymes wrote:>So I fired up the kiln on Saturday.....only to lose
power about half way through the bisque fire.<
Ok to refire, put in new cones.
Bill
Jo Smith on sun 22 aug 04
Maybe, I had a similar thing happen during an ice storm. I refired to
bisque but when I did the glaze firing, cone 10, I had some very unusual
cracking not found in any books. Other potters and myself figured that I
lost power during the quartz inversion ( I think that is what it is called.)
So My advice would be to go a head and rebisque changing the cones then just
fire a few pcs in your glaze fire before you do the full load. Glad you
made it through the storm. Jo
----- Original Message -----
From: "Jim Smola"
To:
Sent: Sunday, August 22, 2004 6:24 AM
Subject: Floridian Firing and Power Failure...
Okay...this has never happened before....I'm one of the unfortunate ones
that just went through hurricane Charlie...lost power for 5 days....but when
it came on I had a kiln loded w/greenware to bisque fire (^6). So I fired up
the kiln on Saturday.....only to lose power about half way through the
bisque fire.
Can I re-fire this load or are there any other precautions that I need to
take into consideration?
I've double checked all items and they "look" like bisque ware but I know
they aren't. The cones on the shelves have not been altered in any way
either. Do I replace the cones before re-firing?
Thanks!
The Pottery Pimp
Jaymes
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Kim Lindaberry on sun 22 aug 04
Jaymes,
Its ok to refire, BUT I would first replace the cone AND reset the kiln
to make sure it starts the firing process from the beginning of the
firing cycle. Some kilns like a Skutt that have several dials on them
will restart the firing process back at the point of interuption unless
all the dials are reset to the starting point. For example if your kiln
had reached ^2 before stopping, and you restart without resetting the
dials, the kiln will jump to that temp as fast as possible without the
normal gradual increase of temperature. In that case the pieces might
encounter a thermal shock and crack.
good luck,
Kim
On Aug 22, 2004, at 6:24 AM, Jim Smola wrote:
> Okay...this has never happened before....I'm one of the unfortunate
> ones that just went through hurricane Charlie...lost power for 5
> days....but when it came on I had a kiln loded w/greenware to bisque
> fire (^6). So I fired up the kiln on Saturday.....only to lose power
> about half way through the bisque fire.
>
> Can I re-fire this load or are there any other precautions that I need
> to take into consideration?
>
> I've double checked all items and they "look" like bisque ware but I
> know they aren't. The cones on the shelves have not been altered in
> any way either. Do I replace the cones before re-firing?
>
> Thanks!
> The Pottery Pimp
> Jaymes
>
> _______________________________________________________________________
> _______
> Send postings to clayart@lsv.ceramics.org
>
> You may look at the archives for the list or change your subscription
> settings from http://www.ceramics.org/clayart/
>
> Moderator of the list is Mel Jacobson who may be reached at
> melpots@pclink.com.
>
Earl Brunner on sun 22 aug 04
You could replace the cones, but since the heat work they have already
recorded, is the heat work that the pottery has experienced, I'd use the
same cones. Shouldn't be a problem, just fire again.
Earl Brunner
Las Vegas, NV
-----Original Message-----
From: Clayart [mailto:CLAYART@LSV.CERAMICS.ORG] On Behalf Of Jim Smola
Sent: Sunday, August 22, 2004 4:24 AM
To: CLAYART@LSV.CERAMICS.ORG
Subject: Floridian Firing and Power Failure...
Okay...this has never happened before....I'm one of the unfortunate ones
that just went through hurricane Charlie...lost power for 5 days....but when
it came on I had a kiln loded w/greenware to bisque fire (^6). So I fired up
the kiln on Saturday.....only to lose power about half way through the
bisque fire.
Can I re-fire this load or are there any other precautions that I need to
take into consideration?
I've double checked all items and they "look" like bisque ware but I know
they aren't. The cones on the shelves have not been altered in any way
either. Do I replace the cones before re-firing?
Thanks!
The Pottery Pimp
Jaymes
____________________________________________________________________________
__
Send postings to clayart@lsv.ceramics.org
You may look at the archives for the list or change your subscription
settings from http://www.ceramics.org/clayart/
Moderator of the list is Mel Jacobson who may be reached at
melpots@pclink.com.
lela martens on mon 23 aug 04
Hi Jim,
A precaution...check your cones...Do you really want to bisque to ^6?..or is
that a typing error... Perhaps you mean ^06. Good luck, Lela
>From: Jim Smola
...but when it came on I had a kiln loded w/greenware to bisque fire (^6).
So I fired up the kiln on Saturday.....only to lose power about half way
through the bisque fire.
>
>Can I re-fire this load or are there any other precautions that I need to
>take into consideration?
>
>
> Thanks!
>The Pottery Pimp
> Jaymes
>
>______________________________________________________________________________
>Send postings to clayart@lsv.ceramics.org
>
>You may look at the archives for the list or change your subscription
>settings from http://www.ceramics.org/clayart/
>
>Moderator of the list is Mel Jacobson who may be reached at
>melpots@pclink.com.
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