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Main properties and uses of magnesia carbon brick

2021-12-08 11:56:30
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Magnesia carbon brick is made of magnesia, calcined magnesia, fused magnesia, high-purity magnesia, high-quality graphite and bauxite additives. The price and performance of magnesia carbon brick are closely related to the graphite content in the brick. With the increase of graphite content, the strength of brick decreases, the thermal expansion rate decreases and the residual expansion rate increases. Magnesia brick


Therefore, the graphite content in the brick should be controlled at about 20%. Magnesia carbon brick has small wettability to molten slag and has excellent peeling resistance and corrosion resistance. It is suitable for the slag line of ladle. It is an occasion of multi furnace continuous casting. In order to meet the needs of producing clean steel, the application position of magnesia carbon brick has expanded from the slag line to the side wall during refining in ladle.


Sintered magnesia brick


Magnesia carbon brick supply


When laying magnesia carbon bricks on the ladle, pay attention not to mix with bricks with high SiO2 content. Otherwise, the local melting loss of MgO-C brick will occur, and the melting loss mechanism is;


It is mainly used for the lining and tapping port of steelmaking oxidation conversion furnace, the hot spot of high-power electric furnace wall, the lining of refining furnace outside the furnace, the slag line of steel barrel, etc.


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