| 摘要 |
PROBLEM TO BE SOLVED: To prevent the clogging of a casting nozzle caused by a deoxidation product in continuous casting. SOLUTION: When a high cleanliness steel is produced by using a metal for deoxidation to remove oxygen dissolved in molten steel, the deoxidation product is efficiently removed by adding the oxide of the metal for deoxidation having≥200μm grain diameter to the alloy of the metal for deoxidation by 5 to 20 mass%, and thus, the clogging of the nozzle for casting can be prevented. COPYRIGHT: (C)2005,JPO&NCIPI
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