| 摘要 |
<p>The invention relates to a refractory casting member for the casting of a molten metal in a substantially downward direction from an upper metallurgic vessel to a lower metallurgic vessel, said casting member having a substantially axial flow channel extending from its upper end to its lower end and comprising: i) a connecting portion adapted to connect the casting member to the upper metallurgic vessel; ii) a substantially tubular portion extending from the collecting portion to a regulating portion; and iii) a regulating portion. The casting member of the invention is characterised in that said regulating portion comprises a rotor rotatable in a stator about an axis aligned substantially horizontally and a stator, formed in an extension of the tubular portion, having a recess complementary to said rotor and in that the flow channel section is modifiable by movement of the rotor. In another of its aspects, the invention relates for a particular rotor to be used in said casting member.</p> |
