| 摘要 |
<p>A method for continuously casting strip material (10) onto a casting surface (14) moving past a nozzle (24) in a molten metal holding tundish (22) is disclosed comprising the steps of pouring molten metal (20) into a tundish (22) at a rate sufficient to establish a metallostatic head pressure of at least 17.577/cm<Sup>2</Sup> (one quarter pound per square inch) at the nozzle within one second after pouring is initiated, and pouring additional molten metal into the tundish at a rate sufficient to maintain a substantially constant operating pressure at the nozzle throughout the casting operation.</p><p>A tundish 22 for holding molten metal to be cast into strip material (10) onto a casting surface (14) moving past a nozzle (24) in the tundish (22), is also disclosed comprising a front wall (26) having an inside surface (29), a rear wall (28) having an insidesurface (30) and sidewalls (32,34) enclosing a molten metal holding area defined between the inside surfaces (29,30) of the front and rear walls (26,28). The inside surface (29) of the front wall (26) converges with the inside surface (30) of the rear wall (28) at least at a location near the nozzle (24).</p> |
