Zirconium oxide fiber refractory castable

Abstract

The invention provides a zirconium oxide fire refractory castable. The zirconium oxide fire refractory castable is prepared from the following raw materials in parts by weight: 40-45 parts of aggregate, 45-55 parts of powder and 5-10 parts of admixture, wherein aggregate is composed of bauxite chamotte, corundum, zircon and silicon carbide; the powder is composed of bauxite chamotte powder, alpha-Al2O3 powder, magnesium oxide, yttrium oxide and silica powder; and the admixture is composed of hexamethylenetetramine, phenolic resin and zirconium oxide fiber.

Description

technical field [0001] The invention belongs to the technical field of refractory materials, in particular to a zirconia fiber refractory castable. Background technique [0002] Compared with qualitative refractory products, unshaped refractory materials represented by refractory castables have the advantages of short process flow, low production energy consumption and cost, convenient use, wide application range, integrity and good use effect, so they are widely used in the world. It has developed rapidly, and its proportion in the whole refractory material is getting higher and higher. In some countries with advanced refractory technology, the output of unshaped refractories has approached or even exceeded the output of shaped products. For example, the current output of unshaped refractory materials in Japan accounts for about 60% of the total refractory materials; in the United States, it is about 50%; in Britain, Germany, France and other countries, it is 40% to 50%. ...

AI Technical Summary

Problems solved by technology

At present, the superfine powder or clay combined with low cement refractory castables commonly used in the domestic market has improved high-temperature performance compared with traditional high-alumina cement-bound castables, but because of the high CaO content in the material, its high-temperature performance is still not ideal.