Enhancing liquid metal quality and productivity in a slab caster through physical and mathematical modelling

通过物理和数学建模提高板坯连铸机的液态金属质量和生产率

• 批准号: 488536-2015
• 负责人: Chattopadhyay, Kinnor
• 金额: $ 3.64万
• 依托单位: University of Toronto
• 依托单位国家: 加拿大
• 项目类别: Collaborative Research and Development Grants
• 财政年份: 2016
• 资助国家: 加拿大
• 起止时间: 2016-01-01 至 2017-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=600741
• 关键词: Enhancing; liquid; metal; quality; productivity

Flat product manufacturers are under constant pressure to increase productivity, and simultaneously maintain high quality of continuously cast steel slabs because of stringent quality demands imposed by their customers. However, increasing productivity has detrimental effects on slab quality, and defects and rejections have a major impact on the producers bottom-line. Controlling fluid flows in continuous casting tundishes, and moulds is one of the key parameters to ensure cleaner steel and reduce defects. Physical and mathematical modelling is an absolutely essential tool to understand and optimize fluid flows in continuous casting. The continuous caster consists of two integral aspects: (i) mould; (ii) tundish. This project will deal with liquid metal flow and cleanliness in the tundish. The main goal in the tundish is to control and optimize the melt flow which will enhance steel cleanliness. This will help in the reduction of SEN clogging, minimize inclusion formation, and supply cleaner steel to the moulds. The overall aim of the project is to identify solution strategies for enhancing steel cleanliness in the tundish, and increasing the productivity for ultra-low carbon steel and drawn steel grades. The cost saving arising from improving both liquid and solid steel quality is expected to exceed $2 million/year. The proposed research project is aligned with AMD's strategic vision and business goals, and will create immediate benefits to ArcelorMittal Dofasco, located in Ontario, Canada. The results of this research will create applied knowledge that will facilitate better design and operation of the continuous casting process. The study will establish a basis for improvements that benefits not only the Canadian but also the global steel industry in terms of product cleanliness, quality and productivity. Several highly qualified personnel (HQP) will be trained in the course of the project in the area of steelmaking and casting who will eventually enter the steel industry or academia in Canada.

平板产品制造商面临着不断提高生产率的压力，同时由于客户对质量的严格要求，他们要保持连铸钢板的高质量。然而，提高生产率对板坯质量有不利影响，缺陷和次品对生产者的底线有重大影响。控制连铸中间包和结晶器内的流体流动是保证钢的清洁度和减少缺陷的关键参数之一。物理和数学建模是理解和优化连铸流体流动的绝对必要的工具。连铸机由两个不可分割的方面组成：(i)模具；(2)中间包。该项目将处理中间包中的液态金属流动和清洁度。中间包的主要目的是控制和优化熔体流动，以提高钢的清洁度。这将有助于减少SEN堵塞，最大限度地减少夹杂物的形成，并为模具提供更清洁的钢。该项目的总体目标是确定提高中间包钢清洁度的解决方案策略，并提高超低碳钢和拉制钢的生产率。提高液体和固体钢质量所节省的费用预计每年将超过200万美元。拟议的研究项目与AMD的战略愿景和业务目标保持一致，并将为位于加拿大安大略省的安赛乐米塔尔Dofasco公司创造直接利益。这项研究的结果将创造应用知识，这将有助于更好地设计和操作连铸过程。这项研究将为在产品清洁度、质量和生产率方面不仅有利于加拿大而且有利于全球钢铁工业的改进奠定基础。在项目过程中，将培训几名炼钢和铸造领域的高素质人才，他们最终将进入加拿大的钢铁工业或学术界。