| 摘要 |
A stopper for a continuous casting machine is provided to control the injection amount of molten steel supplied to a mold minutely by removing alumina and inclusion fused in the stopper and a tundish steel-tapping hole. A stopper(100) for a continuous casting machine comprises: a hollow pipe(170) being positioned at the top of a steel-tapping hole of a tundish and having an inner diameter facing the steel-tapping hole; a washing stick(110) which is inserted into the inner diameter(172) of the hollow pipe and passes through the hollow pipe; a first elevating cylinder(140) which is connected to the upper end of the washing stick and vertically moves the washing stick; a cutter covering the external diameter of the hollow pipe; and a second elevating cylinder(150) which is connected to the upper end of the cutter and vertically moving the cutter. The bottom of the hollow pipe is a hemisphere-shape adhering closely around the steel-tapping hole. The washing stick comprises: a washing stick rod(112) having smaller external diameter than the inner diameter of the hollow pipe; and a washing stick head(114) having the bigger external diameter than the inner diameter of the hollow pipe.
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