14
Hint
:
When firing large and even plates, use firesand or firing rods
as a moving support. This works like a lubricant underneath
the pottery ware.
When firing very large pieces, the increase in temperature
should be slow, e. g. 50 °C/h. This prevents possible cracking
due to thermal stress. Pieces which are not completely dry can
be prepared for firing with a drying program.
Glaze firing
In glaze firing the even temperature distribution is of vital
importance for the future appearance of the ware because
glazes are very sensitive to temperature differences.
Therefore, distribute the ware evenly in the kiln. Fire similar
pieces on one level. The minimum distance between the
pieces should be three to five cm, that is also advised for the
distance to the wall. The base of each piece should not be
glazed or it should be supported on stilts to protect the surface
of the kiln shelf.
The kiln shelves may be spread with suitable protective batt
wash, as protection from accidental glaze runs (for
information ask your kiln retailer).
Reduction glaze firing
Reduction firing should be avoided in electrically heated kilns
because the protecting oxide layer on the heating elements
will be reduced and their life shortened.
Firing records
To reach reproducible results firing records are an important
aid. At the end of this user manual you will find a firing record
template.
sample images:
load with shelf props
Содержание CB Series
Страница 1: ...Last updated 19 10 2020 subject to modifications U s e r m a n u a l Model series CB ECO SQ ...
Страница 18: ...18 8 Warranty ...
Страница 19: ...19 ...
Страница 20: ...20 9 Firing record template Time Temperature Difference target actual Power Volt Ampere Remarks ...
Страница 21: ...21 10 Certificate of conformity ...
Страница 22: ...22 ...
Страница 23: ......