The term Fused Cast refers to a manufacturing process in which the ceramic bonding is obtained by the solidification of a mixture which has been melted in an electric furnace and cast in liquid state into molds.
Saint-Gobain SEFPRO places particular emphasis on three fundamental properties of fused cast products which affect their use :
Oxidation level of the melted liquid : The oxidation level strongly influences compactness, blistering tendency, exudation, stoning and corrosion resistance. The optimal oxidation level depends on the melting process and proper control of the melting parameters within the furnace.
Compactness, cohesion and homogeneity of the crystallographic structure : The level of oxidation-reduction in the cast liquid and the solidification conditions strongly influence the quality of the crystaline structure and the compactness of fused cast products. These determine product behavior during utilization.
Size and position of the shrinkage cavities : In order to provide the best possible quality in terms of product end-use, the material contraction which occur during the solidification process must be carefully controlled, as it affects the homogeneity of the piece, the volume and location of the shrinkage cavity, and the residual stress.
Fused cast blocks are available in different filling processes, designed to suit their different applications, as per the following table :
Label | Process Name | Description |
RN - RC | Normal Casting | Cavity is located under the casting scar |
RR - STC - EC | Reinforced Casting | Reduced cavity located at the bottom of the block (soldier blocks) |
RT - DCL - EPIC | Total Filling | The zone where the cavity is located is sawed off |
Dalle TJ - DCL | Total Filling for thin blocks | Similar to Total Filling, specifically adapted for pavers |
Our products range includes as well materials manufactured by Saint-Gobain TM K.K. Please, visit : saint-gobain-tm.com
For the dismantling of end-of-campaign furnaces and for the processing of used refractory linings, please visit : valoref.com
Saint-Gobain SEFPRO series of fused-cast products include four major groups of materials. Please see the corresponding pages for more details in the related links.