REFRACTORY CERAMIC MATERIAL Russian patent published in 2003 - IPC

FIELD: building materials. SUBSTANCE: invention relates to technique of production of ceramic articles used as ammunition in furnaces of periodic and continuous action in ceramic, refractory, abrasive, porcelain-faience and other branches of industry. Refractory material is made as continuous finely divided matrix with ceramic inclusions under condition that ceramic inclusions show refractoriness and thermal expansion coefficient is less and shrinkage is greater than corresponding parameters of matrix. Charge comprises raw components for making matrix 55-65 wt.-%, dehydrated raw components for making granules 35-45 wt.-%. Granules of fraction 0.63-3.0 mm is prepared by thermal treatment at temperature 600-800 C formed preliminary and dried granules of the same fraction in filling state. Invention proposes to use dehydrated components of raw mass concentrate as raw components of granules for making articles from solid porcelain containing alumina. Invention provides the enhanced cryptoresistance of refractory material prepared from conventional raw components. EFFECT: improved preparing method, valuable properties of material. 2 cl, 1 tbl