| 摘要 |
Disclosed is an improved casting tip (14) for a nozzle of a continuous caster, the tip designed for transferring molten metal (4) from a molten metal reservoir (2) to a continuously advancing mold as formed, for example, by twin belts (18), rolls (24) or block casters (28) for casting molten metal into solid form (22). The casting tip (14) is comprised of a top wall (44), a bottom wall (46) oppositely disposed from the top wall, a first side wall, and a second side wall oppositely disposed from the first side wall, the first and second side walls joined to the top and bottom walls to form a passage therebetween having an entrance and an exit. The passage has a top wall inside surface (52) having a first portion (56) that first converges towards the bottom wall starting at the entrance and has a second portion (60) that diverges from the bottom wall to the exit, the top wall first portion having a length less than the top wall second portion length. Further, the passage has a bottom wall inside surface (54) having a first portion (58) that first converges towards the top wall starting at the entrance and has a second portion (62) that diverges from the top wall to the exit, the bottom wall first portion having a length less than the bottom wall second portion length. The top wall and bottom wall converge and diverge about substantially an equal amount from a center line from the entrance to the exit of the passage. <IMAGE> |
