| 摘要 |
<p>The invention provides a tundish of improved flow characteristics of the molten metal passing through it, the tundish (10) having an outlet in its base (11) the outlet being spaced longitudinally of the tundish from a pour zone (14), the pour zone (14) being positioned to receive a stream of molten steel from a ladle, an impact pad (13, 40) on the floor (11) of the tundish in the pour zone, the impact pad (13, 40) comprising a base (41) having an impact surface (42), an upwardly extending sidewall (43) along the periphery of the base, the sidewall (43) having an inner surface (48) having an undercut portion to face the incoming steel stream and the undercut portion having a surface shaped to receive and reverse the direction of low of the incoming stream, and a dam (20, 21) positioned between the impact pad (13, 40) and the outlet, the dam (20, 21) having one or more holes (27, 28) to allow through passage of a proportion of the steel and the dam (20, 21) extending upwardly from the tundish floor (11) for from about 40 % to 60 % of the height of the uppermost level of steel in the tundish.</p> |
