| 摘要 |
PROBLEM TO BE SOLVED: To efficiently perform a degassing treatment while performing a continuously cast from a melting furnace without upsizing an apparatus and degrading productivity. SOLUTION: In this continuously producing method, the molten copper sent from the melting furnace through a gutter D is transferred into a tundish 2, and supplied into a continuous caster E from the tundish 2 to continuously produce the copper material. In the method, a plurality of inert gases different in specific gravity are poured into the atmosphere on the molten copper flowing through the gutter D. Further, it is preferable that nitrogen gas and argon gas are used as the plurality of inert gases. COPYRIGHT: (C)2009,JPO&INPIT
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