| 摘要 |
In direct cooling an ingot emerging from a mold, two sets (136) and (142) of liquid coolant streams are discharged onto the ingot from an annulus circumposed about the lower end opening of the mold. One set of streams (136), is discharged downwardly at 22.5 degrees to the mold axis, and the other (142), is discharged downwardly at 45 degrees to the mold axis. The two sets are staggered to one another circumferentially of the mold, and because of the high angle of incidence of the 45 degree set to the axis of the mold, substantial portions of the 45 degree streams rebound from the surface of the ingot at their points (144) of the impact with the ingot, and mushroom into corolla-like masses of air borne liquid coolant spray (146) lying crosswise the path of the 22.5 degree streams, which in turn entrain the spray and impact the successive layers (138) of coolant therebelow with the spray.
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