Avril Farley on sat 5 feb 05
Hi Arnold
If the inner surface of the kiln lid bows down into the kiln at high =
temperature, How would I find out how much headroom is needed? Does =
this apply to brick lids as well as fibre lined lids? . I always check =
across the kiln top with a ruler to ensure there is about an inch and a =
half headroom for the work. Today I have broken my own rule and put a =
glaze firing on with the top of one bottle coming within an inch of =
the lid. Is there any rule of thumb or recommendation for spacing that =
can be applied to avoid accidental adhesion.
Interested to know as the kiln fires..... Avril in the Forest UK
Arnold Howard on mon 7 feb 05
Avril, the bowing of a kiln brick lid is so slight that it's hardly
noticeable by the naked eye. I wouldn't worry about the space between the
ware and lid changing during firing.
A fiber lid probably also bows at high temperature, but I'm not sure. I
haven't observed fiber lids as much as brick lids.
Sincerely,
Arnold Howard
Paragon Industries, L.P., Mesquite, Texas USA
arnoldhoward@att.net / www.paragonweb.com
----- Original Message -----
From: "Avril Farley"
If the inner surface of the kiln lid bows down into the kiln at high
temperature, How would I find out how much headroom is needed? Does this
apply to brick lids as well as fibre lined lids? . I always check across
the kiln top with a ruler to ensure there is about an inch and a half
headroom for the work. Today I have broken my own rule and put a glaze
firing on with the top of one bottle coming within an inch of the lid.
Is there any rule of thumb or recommendation for spacing that can be
applied to avoid accidental adhesion.
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