Zhang Wen, Zhong Yunbo, Wang Yun, et al. Numerical Simulation on Effects of Nozzle Brick Diameters on the Teeming and Solidification of Large Steel Ingot. [J]. Special Casting & Nonferrous Alloys 30(9):803-806(2010)
Zhang Wen, Zhong Yunbo, Wang Yun, et al. Numerical Simulation on Effects of Nozzle Brick Diameters on the Teeming and Solidification of Large Steel Ingot. [J]. Special Casting & Nonferrous Alloys 30(9):803-806(2010)DOI:
Numerical Simulation on Effects of Nozzle Brick Diameters on the Teeming and Solidification of Large Steel Ingot
摘要
运用模拟软件ProCAST模拟了25t大钢锭的浇注及凝固过程
考察了模底砖孔径对钢水流场的影响。结果表明
随着模底砖孔径的增大
钢水的出口速度将减小
导致液面凸起的高度减小
液面趋于平稳。孔径为0.12m时
液面钢水的水平流速较小
较原工艺能更好地防止卷渣。改变模底砖孔径不会使温度场发生明显变化。
Abstract
The teeming and solidification process of ingot with 25 tons in weight was simulated by ProCAST software to understand effects of nozzle brick diameters on the flow filed of liquid steel. The results reveal that with increasing in nozzle brick diameters
outlet velocity of liquid steel is decreased
leading to the decrease of meniscus and the improvement of stability of liquid surface. With diameter of 0.12 m
liquid steel surface exhibits small horizontal flow velocity
which can more desirably prevent the slag entrapment compared with the initial sketch. In addition
adjustment of nozzle brick diameter only slightly changes temperature field.
Key Laboratory of Metallurgy Engineering,Liaoning Province,University of Science and Technology Liaoning
Key Laboratory of Chemical Metallurgy Engineering,Liaoning Province,University of Science and Technology Liaoning
Western Metal Materials Co., Ltd.
School of Mechanical and Power Engineering, Nanjing Technology University
State Key Laboratory of Materials Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology