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Xiuyan Manchu Autonomous County Hengyu Mining Deve

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Main properties and uses of magnesia carbon brick


Magnesia carbon bricks are made of magnesia, burnt magnesia, fused magnesia, high-purity magnesia and high-quality graphite and bauxite additives. The performance of aluminum-magnesium carbon bricks has a lot to do with the graphite content in bricks. As the graphite content increases, the strength of the brick decreases, the coefficient of thermal expansion decreases, and the residual expansion ratio increases. Magnesium brick wholesale

Therefore, the graphite content in the brick should be controlled to be around 20%. Magnesia carbon brick has low wettability to slag, has excellent resistance to flaking and erosion, and is suitable for slag line parts of ladle, especially in the case of multi-furnace continuous casting. In order to meet the needs of producing clean steel, when refining in ladle, the application site of magnesia carbon brick has expanded from the slag line to the side wall.


When building magnesia carbon bricks on ladle, care should be taken not to mix with bricks with high SiO2. Otherwise, the local melting loss of the magnesia carbon brick will be increased, and the melting loss mechanism is;

It is mainly used for furnace lining and tapping of steelmaking oxidation reforming furnace, hot spot of high-power electric furnace wall, lining of refining furnace outside furnace, slag line part of steel drum.


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