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During the operation of the AOD furnace, the selective loss of the matrix components of the asphalt-impregnated and fired dolomite bricks leads to an increase in porosity and a loose structure, which are the main reasons for the rapid erosion of this type of dolomite bricks.
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Commonly used refractory materials for AOD furnaces are: ordinary magnesia-chrome bricks, high-alumina plastics, magnesia castables, directly combined magnesia-chrome bricks, recombined magnesia-chrome bricks, semi-recombined magnesia-chrome bricks, high-purity directly combined magnesia-chrome bricks and Combined with magnesia chrome brick, etc.
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AOD refining method is the abbreviation of argon oxygen decarburization method. When refining stainless steel, it blows oxygen into molten steel under standard atmospheric pressure, and blows inert gas (Ar, N2) to achieve the effect of false vacuum by reducing CO partial pressure, so that the carbon content is reduced to a very low level. level, and inhibits the oxidation of chromium in steel.
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AOD process is the abbreviation of argon-oxygen decarburization refining method. It is to blow oxygen and decarburize molten steel under normal pressure, while blowing argon (or nitrogen) to reduce the partial pressure of carbon monoxide during decarburization.
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