GOALI/IUCP: Stress Analysis and Optimization of Thin Strip Casting Processes

GOALI/IUCP：薄带连铸工艺的应力分析和优化

• 批准号: 9900140
• 负责人: Yogeshwar Sahai
• 金额: --
• 依托单位: Ohio State University Research Foundation -DO NOT USE
• 依托单位国家: 美国
• 项目类别: Continuing grant
• 财政年份: 1999
• 资助国家: 美国
• 起止时间: 1999-08-01 至 2003-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9900140&HistoricalAwards=false
• 关键词: GOALI; IUCP; Stress; Analysis; Optimization

This Grant Opportunity for Academic Liaison with Industry (GOALI) research project focuses on specific behavior in solidifying metal that relates to the microstructure being formed and the mechanisms of the process. Thin strip casting of aluminum and steel can provide industry with an opportunity to produce netshape products via a process that has lower cost and lower environmental impact in terms of energy and material flow. Single roller melt drag, twin roller, and two roller melt drag processes were investigated and modeled, with some understanding of controlling parameters being established. In practice it has been found that the quality of the cast strip can be poor, with several surface and microstructural defects occurring. This work will focus on the fundamental analysis of the effects of various operation parameters upon the solidification and cooling of the strip. Experimental work and stress analysis performed by computational modeling of the solidifying thin strip metal will be conducted. This GOALI project will include the participation of Reynolds Metals, Armco, Inc., and Transmet Corporation, with the use of production scale casters at these companies to validate the models developed in this project. It is expected that the models will provide direct information on the appropriate processing parameters to generate improved thermal flow paths and induced thermal stresses. It is also expected that this work, if successful, will help the U.S. primary metals industry remain competitive in the global economy.

该资助机会学术与工业联络（GOALI）研究项目重点关注凝固金属中与形成的微观结构和过程机制相关的特定行为。铝和钢的薄带连铸可以为工业提供机会，通过在能源和材料流方面成本更低、对环境影响更小的工艺来生产净形产品。 对单辊熔体拖动、双辊和双辊熔体拖动过程进行了研究和建模，建立了对控制参数的一些理解。在实践中，已经发现铸带的质量可能很差，会出现一些表面和微观结构缺陷。这项工作将重点关注各种操作参数对带材凝固和冷却影响的基本分析。 将通过凝固薄带金属的计算模型进行实验工作和应力分析。 该 GOALI 项目将包括 Reynolds Metals、Armco, Inc. 和 Transmet Corporation 的参与，并使用这些公司的生产规模脚轮来验证该项目中开发的模型。 预计该模型将提供有关适当处理参数的直接信息，以生成改进的热流路径和诱导热应力。 预计这项工作如果成功，将有助于美国初级金属行业在全球经济中保持竞争力。