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    • 3. 发明申请
    • Apparatus and Process for delivering molten steel to a continuous casting mold
    • 用于将钢水输送到连续铸模的设备和方法
    • US20160052049A1
    • 2016-02-25
    • US14466014
    • 2014-08-22
    • Xiaoyan Li
    • Xiaoyan Li
    • B22D11/113B22D1/00B22D41/00B22D11/11
    • B22D41/00B22D1/002B22D11/11B22D11/117C22B9/04
    • Apparatus and Process for delivering molten steel to a continuous casting mold with high inclusion removal capability and high mold pool flow optimization potential includes a tundish with a novel design and a metal distributor comprising a main chamber body connected to a vacuum device and tubes for metal exchange between the tundish, the distributor and the casting mold. At least one of the tubes has gas injection devices to perform gas lifting functions. The new design of the tundish enables it to receive all the steel in a ladle without leaving any heel and refining the steel to an extremely low inclusion level. The distributor is able to achieve an effective hydrostatic head relative to the mold metal level of the order of 10−2 m or below in the submerged entry nozzle and obtain fully filled and stable flow with low disturbance inside the SEN and therefore is able to deliver the molten steel at low velocities at SEN exits with minimum turbulent disturbance and high flow, thermal and chemical homogeneity over the entire metal bath in the mold. The invention also makes it possible to leave no heels in either the tundish or the distributor when they are replaced. The invention is particularly useful for thin slab and strip casting processes where mold flow control is critical to the casting process.
    • 用于将钢水输送到具有高夹杂物去除能力和高模具池流优化潜力的连续铸造模具中的装置和方法包括具有新颖设计的中间罐和包括连接到真空装置的主室主体和金属交换管的金属分配器 中间包,分配器和铸模之间。 至少一个管具有用于执行气举功能的气体注入装置。 中间包的新设计使其能够接收钢包中的所有钢,而不会留下任何脚跟,并将钢精炼到极低的夹杂物水平。 分配器能够在潜入式喷嘴中相对于10-2米或更低级的模具金属水平获得有效的静水压头,并在SEN内部获得完全充满和稳定的低扰动流动,因此能够输送 在SEN低速下的钢水在模具中的整个金属浴上以最小的紊流扰动和高流动性,热和化学均匀性退出。 本发明还可以在更换中间包或分配器时留下高跟鞋。 本发明对于薄板坯和带钢铸造工艺特别有用,其中模具流动控制对铸造过程至关重要。