Fiber-toughened refractory-material powder

Abstract

The invention relates to the technical field of refractory materials. The invention discloses a fiber-toughened refractory-material powder, which is mainly prepared from the following raw materials in parts by weight: 40 parts of magnesium oxide, 80 to 90 parts of calcium oxide, 5.5 to 6.5 parts of toughening fiber and 1 to 1.3 parts of binder. The fiber-toughened refractory-material powder has the following characteristics that (1), the raw materials in the fiber-toughened refractory-material powder are reasonably proportioned, and not only can the higher refractory performance be realized, but also the cost can be properly decreased; (2), the fiber-toughened refractory-material powder can be used as an amorphous refractory material after aluminosilicate cement is properly added; (3), the refractory material which can be prepared from the fiber-toughened refractory-material powder has higher fracture toughness, and has better performance of being resistant to mechanical impact.

Description

technical field [0001] The invention relates to the technical field of refractory materials, in particular to a fiber toughened refractory powder. 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 refractories; according t...

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.