| 摘要 |
PROBLEM TO BE SOLVED: To provide an alloy cast iron continuously cast bar for a glass mold which has satisfactory creep properties at high temperature, has suppressed formation of chill structure, and has satisfactory machinability. SOLUTION: The alloy cast iron continuously cast bar for a glass mold has a componential composition comprising, by mass, 2.70 to 3.85% C, 2.3 to 3.2% Si, 0.1 to 0.8% Mn, 0.1 to 0.4% Ti, 0.3 to 1.0% Ni, and 0.3 to 1.0% Mo, and in which the ratio of Ni/Mo satisfies 0.70 to 1.30, and the balance Fe with inevitable impurities. Further, the molten metal of alloy cast iron having the above componential composition is prepared, and is cast using a horizontal continuous casting apparatus to obtain a cast bar, and next, the obtained cast bar is annealed in the temperature range of 800 to 900°C, so that the alloy cast iron continuously cast bar for a glass mold is produced. COPYRIGHT: (C)2004,JPO
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