MOLDING COMPOUND FOR THE PRODUCTION OF A FIREPROOF LINING

摘要

A material for the production of a refractory lining, especially for the combustion chamber of a stationary gas turbine, comprises more than 50 wt.% silicon carbide and less than 50 wt.% aluminium silicate. The material contains less than 10% colloidal silicic acid solution, and the solution contains more than 30% solid material. Between 15 and 40% of the silicon carbide has a grain size less than 0.5 mm. The material porosity is between 10 and 35%, especially 13-35%. The material is formed by mixing aluminium oxide, silicate, carbide and a colloidal silicic acid solution. The mixture is moulded under vibration, cooled, dried and then fired.