Carburizer and carburization method using the same
AssigneeNippon Steel Corporation
InventorsHitoshi MUNEOKA, Norifumi ASAHARA, Motohiro SAKAMOTO, Tsuyoshi YAMAZAKI
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Abstract
A carburizer, which effects carburization with respect to molten iron accommodated in an electric furnace or a ladle, includes a mixture of quicklime and a carbon material having an ash content of from 5 mass % to 18 mass %, and satisfies the conditions 0.6≤(mc+Mc)/ms≤2.7 and 0.7≤(mc+Mc)/ma≤6.5. A method of carburization uses this carburizer. Here, mc represents the mass of CaO in the carbon material, ms represents the mass of SiO2 in the carbon material, ma represents the mass of Al2O3 in the carbon material, and Mc represents the mass of the quicklime.
Claims6
A carburizer that effects carburization with respect to molten iron accommodated in an electric furnace or a ladle, the carburizer comprising a mixture of quicklime and a carbon material having an ash content of from 5 mass % to 18 mass %, and the carburizer satisfying conditions stipulated in the following Formula (1) and Formula (2):
- 0.6≤(mc+Mc)/ms≤2.7 Formula (1):
- 0.7≤(mc+Mc)/ma≤6.5 Formula (2):
- wherein, in Formula (1) and Formula (2), mc represents a mass of CaO in the carbon material, ms represents a mass of SiO2 in the carbon material, ma represents a mass of Al2O3 in the carbon material, and Mc represents a mass of the quicklime.
Dependencies are inferred from the claim text.