ABSTRACT In continuous casting, molten steel often contains non-metallic inclusions that have a very high melting temperature and thus remain suspended in the molten flow. Given the lower density of these substances compared to the melt, they can be filtered in the form of top slag by proper use of buoyancy forces. Thus, providing a desirable flow pattern, reduced flow turbulence, and adequate residence time for inclusions in the tundish will improve the inclusion separation performance and therefore the product quality. In this study, a reduced-scale water model of a tundish was used to evaluate the effect of melt level in the tundish on the flow pattern and inclusion separation performance. Then, the flow control devices are added to this simple tundish model to examine the effect of them on the flow behaviour and inclusion separation. Experimental investigation showed that raising the water level in the model tundish has desirable effects on inclusion separation and the use of the dam at the inlet with tall dam improves the flow pattern and inclusion separation almost 20% in the form of top slag.

中文翻译：

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流量控制装置对四流中间包夹杂物分离影响的实验研究

摘要 在连铸过程中，钢水中通常含有非金属夹杂物，这些夹杂物具有很高的熔化温度，因此悬浮在熔液流中。鉴于这些物质与熔体相比密度较低，它们可以通过适当使用浮力以顶渣的形式过滤。因此，为中间包中的夹杂物提供理想的流动模式、减少的流动湍流和足够的停留时间将提高夹杂物的分离性能，从而提高产品质量。在这项研究中，使用一个缩小比例的中间包水模型来评估中间包中的熔体液位对流动模式和夹杂物分离性能的影响。然后，将流动控制装置添加到这个简单的中间包模型中，以检查它们对流动行为和夹杂物分离的影响。