| 摘要 |
PURPOSE:To prevent troubles such as mold defect and the clogging of a molten metal in a nozzle part by using a casting mold consisting of a material having specific heat conductivity and sliding and moving the top end of a nozzle for casting the molten metal while maintaining the tight contact with the surface part of the casting mold. CONSTITUTION:The casting mold consisting of the material having <=0.1Cal/ cm.sec. deg.C heat conductivity at 800-1,000 deg.C is used. The top end of the nozzle 15 for casting the molten metal is so constituted as to slide by maintaining the tight contact with the surface of the casting mold to suppress the heat dissipation at the top end of the nozzle as far as possible. The molten metal 14 is smoothly cast into casting hole parts 11, 12, 13 of the casting mold when the top end of the nozzle 15 moves to arrive at said hole parts. The continuous casting mold is thus obtd. without providing a valve, plug, etc. to the nozzle part 15 and the troubles such as the clogging of the molten metal and contamination are averted.
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