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microstructures[2-4]. The difference between this technique and conventional casting technique lies in the mold. The mold for the former technique is heated, while that for the latter is cooled. So... A, WANG Z, MOTOYASU G. Pilot-scale casting of single-crystal copper wires by the ohno continuous casting process [J]. Journal of Materials Science, 1995, 30: 5438-5448. [7] SODA H, MOTOYASU G, MCLEAN......
板坯连铸结晶器内钢凝固过程热行为研究 Ⅰ.数学模型蔡兆镇1,朱苗勇1(1.辽宁省沈阳市东北大学材料与冶金学院)摘 要:建立了伴随δ/γ相变的钢凝固过程两相区溶质微观偏析模型,以其所确立的钢凝固过程各相分数与温度之间的关系获得钢的高温物性参数,并根据连铸坯在结晶器内凝固收缩量与结晶器内表面的位移关系,保护渣的液/固状态及厚度分布,铸坯表面和铜板热面的温度分布以及气隙的动态变化等建立了描述坯壳-铜板界面热流的数学模型.在此基础上,运用率相关本构模型,采用顺序耦合法建立了描述板坯连铸结晶器内钢凝固过程热行为的二维瞬态......
and Technology Beijing,Beijing,100083,China) Abstract:Turbulent flow and heat transfer coupled with solidification in slab continuous casting mold was studied by numerical simulation method. Volume... inner-wall improves the effective area fraction of the nozzle, resulting in less jet impingement, weaker free surface turbulence and thicker solidifying steel shell. Key words:Slab continuous casting......
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by BECHER et al[1], micro powder injection molding[2-3], micro-electrical discharge machining [4-5], microcasting based on permanent mold[6] and micro precision casting based on investment casting... the gypsum, mold is sintered. During this process the master is lost by melting and pyrolysis. The preheated gypsum mold is then filled with a metal melt by centrifugal or pressure casting. After removing......
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板坯连铸结晶器内钢凝固过程热行为研究 Ⅱ.模型验证与结果分析蔡兆镇1,朱苗勇1(1.辽宁省沈阳市东北大学材料与冶金学院)摘 要:基于建立的二维瞬态热/力耦合有限元模型,模拟计算了国内某钢厂实际板坯连铸工况下结晶器内某高强船板钢凝固过程的热行为,并利用现场实测温度数据验证了模型的可靠性.在此基础上重点研究分析了该钢在结晶器凝固过程角部区域气隙厚度,坯壳-铜板间的保护渣(包括液渣层和固渣层)分布及其热行为变化规律和对应区域的热流与表面温度变化特征,并揭示了拉速,结晶器锥度和保护渣性能变化对该钢种在结晶器内凝固热行为......
Research on mold flux for hypo-peritectic steel at high casting speedHeming Zhao, Xinhua Wang, and Jiongming Zhang Metallurgical and Ecological Engineering School, University of Science... and longitudinal cracks when casting hypo-peritectic steel at high casting speed. Firstly, the effect of components on the high basicity mold flux properties was first studied using the orthogonal......
PHYSICAL SIMULATION OF CONTINUOUS ROLL CASTING PROCESS M.H. Huang1,J. Zhong1,X.Q.Li1,L.H. Zhan1 (1.College of Electronical-Mechanical Engineering, Central South University, Changsha 410083,China) Abstract:A series of simulating experimental studies on the rheological behavior and its influential factors of aluminum alloy in continuous roll-casting process have been explored in this paper......
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