초록 ▼

A castable refractory mix composition is disclosed which when fired at a temperature of about 2300°F. will yield a cast refractory article having improved thermal shock resistance and when fired at a higher temperature of about 2750°F. will yield a cast refractory article having improved abrasion re

A castable refractory mix composition is disclosed which when fired at a temperature of about 2300°F. will yield a cast refractory article having improved thermal shock resistance and when fired at a higher temperature of about 2750°F. will yield a cast refractory article having improved abrasion resistance. The castable refractory mix composition comprises from about 10 to 15% by weight of an aqueous slip of fine ground fused silica particles, from 25% to 32% by weight of fine alumina particles, from about 55 to 70% by weight of relatively large particle size silican carbide refractory particles, from about 0.015 to 0.04% by weight of a water-soluble wetting agent, and from 0 to about 5% by weight added water.

대표청구항 ▼

A castable refractory mix composition comprising: a. from about 10 to about 15% by weight of an aqueous slip of ground fused silica particles, comprising an aqueous dispersion of fine fused silica particles produced by wet grinding such that at least about 98% of said ground fused silica particles h

A castable refractory mix composition comprising: a. from about 10 to about 15% by weight of an aqueous slip of ground fused silica particles, comprising an aqueous dispersion of fine fused silica particles produced by wet grinding such that at least about 98% of said ground fused silica particles have a particle size less than 325 mesh; b. from about 25 to about 32% by weight of alumina particles, at least about 99% of said alumina particles having a particle size less than 325 mesh; c. from about 55 to about 65% by weight of silicon carbide refractory particles of a relatively large particle size; d. from about 0.015 to about 0.04% by weight of a water-soluble wetting agent; and e. from 0 to about 5% by weight added water.