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How to improve the medium temperature strength of the amorphous refractory material? The price of magnesia brick
The determination of material, research and combined with the system more reasonable gradation, adding superplasticizer, the castable with less water, better liquidity; the magnesia alumina brick is easy and quick to baking, the structure is complex and difficult to proof; the construction site using a material with plasticity, flow, and spray painting. At the same time, it must be taken into consideration that the performance of the material must not be reduced. On the contrary, to a certain extent, it is necessary to improve the performance indicators, especially to pay special attention to the easy operation and economic feasibility of the construction.
Many kinds of unshaped refractory materials, classification methods are many, generally in accordance with the chemical properties, can be divided into basic refractories, refractory materials and refractory materials; according to chemical composition can be divided into silica, aluminum silicate, aluminum, magnesium, silicon carbide, aluminum carbon; in accordance with the combination can be divided into cement, combined with chemical bond, condensationbondingare; according to the installation can be divided into casting material, plastic, ramming material, spray paint, preform etc..
The refractory materials used in the iron and steel industry account for about 70% of the total amount of refractory materials. The main function of refractories is to withstand the effects of high temperature, wear and corrosion, to protect the steel structure of thermal equipment and provide better working conditions.