Preparation method of high-temperature refractory material

Abstract

The invention provides a preparation method of a high-temperature refractory material. The preparation method comprises the following preparation steps: a, mixing a carbon-containing material, a refractory substrate and aluminum oxide, guiding the mixture into a ball milling tank to be subjected to ball milling, then adding an organic solvent, and performing stirring to obtain slurry; b, mixing partially stabilized zirconium oxide, zirconium carbide particles, acrylated amines, methylene bisacrylamide and ammonium persulfate, guiding the mixture into a high mixing machine, and performing stirring and ultrasonic oscillation to obtain a material 1; c, adding a catalyst and a binder into the material 1, dissolving the catalyst and the binder by stirring, then guiding the slurry into the material 1, and performing heating and stirring to obtain a billet; and d, drying and pulverizing the billet, performing secondary drying treatment, and then, performing cooling and compression molding. Compared with the traditional refractory material, the refractory material prepared by the preparation method provided by the invention has the advantages of lower pores, higher volume density, smallerexpansion ratio and linear change on reheating, better stability, more superior thermal shock performance and better wear resistance.

Description

technical field [0001] The invention belongs to the technical field of refractory materials, and in particular relates to a preparation method of high-temperature 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...

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.