CHARGE FOR THE PRODUCTION OF REFRACTORY PRODUCTS

摘要

The invention relates to refractory materials. The task consists in formation of compact, strong articles with high slag resistance and deformation temperature under load. Charge contains coarse-grained electrocorundum with maximum grain size of 3 mm of fractions of 3-0.5 mm and less than 0.5 mm in their ratio from 0.8:0.2 to 1:0.4; coarse-grained aluminum-magnesium spinel with weight part of AlOwithin 80-90 % with maximum grain size of 2 mm of fractions of 2-0.5 mm and less than 0.5 mm in their ratio from 0.9:0.2 to 1:0.3; mixture with particle size less than 10 micrometers and at least 90 vol. % of alumina with weight part of AlOat least 99 % and aluminum-magnesium spinel with weight part of AlOwithin 80-90 % in their ratio of 1:0.25; 1.0-1.5; dispersant: modified with polyelectrolyte dispersed alumina with particle size less than 2 micrometers at least 50 vol. % or based on polyoxyethylene glycol.