A process for preparing silica brick.

摘要

DESCRIBED a method for producing silica brick comprising firing MATERIAL STONE siliceous containing silica as a main component, IN WHICH 0.05 to 0.25% BY WEIGHT OF MATERIAL melted and solidified Na2O-CAO-SIO2 AND 0.1A 1.0% BY WEIGHT, IN TERMS OF F22O3, IRON OXIDE TO siliceous stone material are added before cooking. THE TRANSFORMATION OF SILICA tridymite ACTUALLY IS ACCELERATING FOR SILICA BRICK tridymite WITH MAINLY COMPRISING SILICA CONTENT REDUCED RESIDUAL AND GLASS AMORPHOUS AND DISPLAYING IMPROVED yield strength.