Melt filtration in continuous casting operations – continuous casting of steel (B06)

连续铸造操作中的熔体过滤 â 连续铸造钢 (B06)

• 批准号: 276858530
• 金额: --
• 依托单位: Institut für Mechanik und Fluiddynamik
• 依托单位国家: 德国
• 项目类别: Collaborative Research Centres
• 财政年份: 2015
• 资助国家: 德国
• 起止时间: 2014-12-31 至 2022-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/276858530?language=en
• 关键词: Melt; filtration; continuous; casting; operations

The investigations of the 3rd grant period shall disclose fundamental principles of reactive cleaning, in particular the interaction between non metallic inclusions (NMI) and reactively generated bubbles in the filter system. Here, NMI attachment and detachment at bubble surfaces as well as NMI layer development at the filter structures will be investigated by numerical and experimental modeling. Optical flow measurements shall disclose the transport processes of NMI at the interfaces between bubble and model melt. NMI agglomeration on the bubble surface as well as the influence of bubble shape and size, coalescence and bubble break up on NMI transport will be analyzed in the experiment and with numerical simulations. By application of the macro model which was developed in the 2nd grant period, the flow in casting vessels with reactive cleaning operations will be simulated.

第三个授权期的研究应揭示反应清洗的基本原理，特别是过滤系统中非金属夹杂物（NMI）和反应产生的气泡之间的相互作用。在这里，NMI附着和分离在气泡表面，以及NMI层的发展在过滤器结构将通过数值模拟和实验建模进行研究。光流测量应揭示气泡和模型熔体之间界面处NMI的传输过程。NMI在气泡表面的聚集以及气泡形状和尺寸、合并和气泡破裂对NMI输运的影响将在实验和数值模拟中进行分析。通过应用第二批资助项目开发的宏观模型，模拟了具有反应清洗操作的铸造容器中的流动。