| Bloating Type Refractories-A Preliminary Study |
J. c. BANERJEE, S. K. DE AND D. N. NANDI
Pages : 113-117
DOI : 10.1080/0371750X.1970.10855736 |
| Abstract |
| Bloating type of refractories including ladle bricks, stopper heads and nozzles
are reported to behave in a better way than the conventional non-bloating type of
similar refractories. To develop this type of refractories preliminary investigations
have been carried out and results indicate the possibility of producing such refractories
from the compositions having ordinary ferruginous clays containing about
6-7% Fe20 3 along with some alkalies and CaO. Bloating was found to be due to
the evolution of S02 at about 1250°C. Gypsum and salt-cake may be used advantageously.
Compositions have been developed with 10-15% linear expansion at
1400°C. |
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