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为了使中间包内夹杂物上浮 ,获得洁净度较高的钢水 ,往往加大中间包的容积 ,借以增加钢水在包内的滞留时间 但是 ,由于中间包底部和侧壁附近的钢水流动趋势较大 ,形成短路流动 ,使一部分钢水过早地流出钢包 ,钢渣还没来得及上浮就被钢水带走进入结晶器 ,导致钢水的洁净度下降?
In order to make the inclusions in the tundish float upward to obtain a higher cleanliness of molten steel, tundish volume is often increased, in order to increase the residence time of the molten steel in the package However, due to the tundish at the bottom and the sidewall near the trend of molten steel flow larger , The formation of short-circuit flow, so that part of the molten steel out of the ladle premature, slag has not had time to go up the molten steel into the mold, resulting in decreased cleanliness of molten steel?