METHODS FOR MANGANESE REMOVAL OF CAST IRON
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United States of America Patent
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Nov 30, 2015
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Dec 12, 2014
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The present invention does not require a demanganese agent such as a sulfide or a combustible gas in the removal of manganese of cast iron. The method for removing manganese of cast iron according to the present invention is implemented by performing the removal of a manganese component by allowing a furnace to be in an oxygen atmosphere, and by blowing air into a molten cast iron in the furnace, while a carbon component in the molten cast iron is being maintained at an approximately constant amount. Alternatively, the method for removing manganese of cast iron according to the present invention is implemented by performing the removal of the manganese component by allowing the furnace to be in an oxygen atmosphere and by stirring the molten cast iron in the furnace, while the carbon component in the molten cast iron is being maintained at an approximately constant amount.
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