Preparation method of high-toughness refractory material

Abstract

The invention belongs to the technical field of refractory materials, and discloses a preparation method of a high-toughness refractory material. The preparation method comprises the following steps of preparing materials, mixing, preliminarily pelletizing, re-pelletizing, toughening and modifying, performing dry-pressing and forming, sintering and the like. In a process of preparing the refractory material, the prepared green body has relatively good mechanical performance, is not liable to have problems such as crushing, is relatively high in yield, and can guarantee efficient performing of refractory material preparation. The prepared refractory material has a relatively high fracture toughness property, so that the service life of the refractory material can be guaranteed; meanwhile, use reliability of the refractory material also can be guaranteed.

Description

technical field [0001] The invention relates to the technical field of refractory materials, in particular to a preparation method of high-toughness refractory materials. Background technique [0002] In the traditional sense, refractory materials refer to inorganic non-metallic materials with a refractoriness of not less than 1580 °C. And parts of the material, and can withstand the corresponding physical and chemical changes and mechanical action. [0003] Most refractory materials are made of natural ores (such as refractory clay, silica, magnesite, dolomite), and some industrial raw materials and synthetic raw materials (such as industrial alumina, silicon carbide, synthetic mullite, Synthetic spinel, etc.) are also increasing, so there are many types of refractory materials. According to the mineral composition, refractories can be divided into silica, aluminum silicate, magnesia, dolomite, olivine, spinel, carbonaceous, zirconium-containing refractories and special r...

AI Technical Summary

Problems solved by technology

[0004] The poor mechanical toughness of inorganic non-metallic materials is a common problem in inorganic non-metallic materials and materials. As refractory materials that belong to inorganic non-metallic materials, their mechanical toughness is also poor. However, its poor mechanical toughness also affects its thermal shock resistance at high temperatures. Due to the large temperature difference between rapid cooling and rapid heating and use, refractory materials are prone to cracking and peeling under the action of thermal expansion and contraction. The situation that affects the integrity of refractory materials reduces the service life of refractory materials; at the same time, for those refractory products that need to be moved frequently, their poor mechanical toughness will greatly increase the damage rate of refractory products and affect their daily use.