| 摘要 |
<p>In a slide gate valve for a ladle/tundish two refractory members are provided each with an aperture, one fixed and with the aperture in line with an aperture in the bottom of the vessel, and the other slidably mounted to allow the discharge of molten metal from the vessel when the apertures in the refractory members are aligned. Particularly with the bottom slidable member, conventionally it is formed from a refractory plate against which abutts a separate collector nozzle. The object of the invention is to provide an improvement to such a member, which objective is met by a construction comprising a pre-formed apertured member serving as an exposed plate, and a second member formed as a casting around said apertured member, the second member being formed with an integral nozzle the bore of which is in alignment with the aperture in the said apertured member.</p> |
