| 摘要 |
For the adjustable throttling of the casting stream in the case of a casting vessel (1) with exchangeable or displaceable sliding plates (13), a slide valve is provided for carrying out the method. By means of a second moving device (17), which operates independently of a first moving device which brings about the exchange or displacement movement of the sliding plates (13), the axial alignment of the pouring opening of the sliding plate (13) relative to the pouring opening of the casting vessel (1) can be varied in such a way that finely adjusted throttling is achieved. Depending on the properties of the molten material to be cast, it is thus possible to set the pouring cross-section which has been recognised as the optimum and for it to be varied in the course of the casting process. To improve the throttling effect, the pouring opening formed in the sliding plate (13) can have an elongated cross-section. The second moving device comprises a hydraulic throttling cylinder (17), which engages on a holding frame (6) for the sliding plate (13). <IMAGE> |
