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2. Refractory casting systems
The degradation of molding sands in contact with moving liquid steel does not generally occur under the effect of high dynamic forces, but as a result of repeated thermal shocks, received in the absence of an established and stable static pressure along the conduits that are the filling systems.
This degradation is all the more marked as the casting time of a large part is long by definition. This is why steel foundries of large parts build complete attack systems from elements (ferrules, nozzles or pots) made of silico-aluminous refractory (at Al 2 O 3 : 30% approx.), which they obtain commercially (figures and ).
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Refractory casting systems
Determination of refractory systems
Bibliography
File reference M 3630
Patents
2.721.241 – June 15, 1994 – [94 07413] – Casting nozzle with inner liner to form a gas-impermeable layer and method of use – VESUVIUS France SA.
2,724,128 – September 05, 1994 – [94 10619] – Device to facilitate extraction of an internal nozzle for metallurgical vessels – DAUSSAN et Cie
2,724,858 – September 23, 1994 – [91 11396] – Device for supplying inert gas to a nozzle...
Organizations
Center Technique des Industries de la Fonderie CTIF http://www.ctif.com
Éditions Techniques des Industries de la Fonderie ETIF http://www.etif.fr
École Supérieure de Fonderie et de ForgeESFF Pôle Universitaire Léonard de Vinci,
Steel smelters
(cited in these files)
Industeel Creusot – Steelworks (Arcelor) http://www.industeel.info
Fonderie et Aciérie de Denain (F.A.D - Groupe Ferry Capitain)
Ferry Capitain http://www.ferrycapitain.fr
...
Suppliers
Fauchon Baudot http://www.fauchon-baudot.com
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