Transactions of the INDIAN CERAMIC SOCIETY Vol. 59 2000
Development of Fast Firing
Vitreous Sanitaryware
V. Viswabaskaran and F. D. Gnanam
Pages : 105-109
DOI : 10.1080/0371750X.2000.10799942
Abstract
Compared to tiles, which are fired very rapidly (30 min),
sanitaryware products are fired in a long firing cycle ranging
from 10 to 12 h. There is a scope to reduce the firing cycle time
in sanitaryware. Fast firing cycle will increase the efficiency and
decrease the cost of production. Conventional sanitaryware bodies
contain roughly 64% silica, 22% alumina and 5% flux and the
body composition in the present study is so chosen as to reduce
the firing cycle and also the firing sh,inkage and thermal
expansion of the body with suitable raw materials. A marginal
increase in flux improves the vitrification. Talc and wollastonite
were added to get the fast firing body and different body and
glaze compositions were prepared. The sanitaryware was cast
and fired at 1200"C. Finally, suitable body and glaze compositions
were identified and were fired in 7 h quick cycle. This present
study shows the possibility of producing sanitarywares which
can be fired within 7 h of firing cycle.
