| 摘要 |
The present invention is a heat insulating board for a ladle cassette, which is installed at the steel-tap hole of a ladle, at the lower surface of a ladle cassette that opens and closes the steel-tap hole. The present invention has a reinforcing member that reinforces the circumference of a first nozzle through-hole at the lower surface of the heat insulating board, which has a first nozzle through-hole where a lower nozzle of the ladle cassette passes and moves; and the lower surface of the heat insulating board, with the exception of the area covered by the reinforcing member, is covered with a fire-resistive body. The present invention prevents the fire-resistive material from falling out and being injected to the steel tube during the discharge from the steel tube to the ladle, thus ensuring a consistent quality level for the steel tube. |
