METHOD FOR PRODUCING CARBON REFRACTORIES

A graphitic refractory is produced by adding 0.5-4 wt.% composite oxides of total weight to Al2O3-SiC-C refractory which components are more than 80 wt.% of total weight. The composite oxides comprises 37-55 wt.% SiO2, 18-38 wt.% B2O3, 10-20 wt.% Na2O and 6-16 wt.% Al2O3. The refractory has a high c...

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Hauptverfasser: LEE, SOK-GUN, KIM, UI-HUN
Format: Patent
Sprache:eng
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Zusammenfassung:A graphitic refractory is produced by adding 0.5-4 wt.% composite oxides of total weight to Al2O3-SiC-C refractory which components are more than 80 wt.% of total weight. The composite oxides comprises 37-55 wt.% SiO2, 18-38 wt.% B2O3, 10-20 wt.% Na2O and 6-16 wt.% Al2O3. The refractory has a high corrosion-and oxidation-resislance.