In order to adapt to the casting of high calcium steel and killed steel, magnesia carbon slide plate bricks, magnesia slide gate plate bricks and magnesia spinel slide gate plate bricks have been developed and produced. Because magnesium oxide does not react with Ca and CaO, magnesia carbon, magnesia, and magnesia spinel slide blocks have a strong ability to resist calcium corrosion, overcoming the defects of aluminum carbon slide plates and aluminum zirconia carbon slide plates that are not resistant to corrosion, and meeting the requirements for casting calcium treated steel. At the same time, magnesia carbon slide blocks also have good thermal shock resistance, high temperature erosion resistance, oxidation resistance, and other characteristics.
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