浸入式水口堵塞过程板坯结晶器内流动与液面波动的模拟

特殊钢 ›› 2006, Vol. 27 ›› Issue (5): 27-29.

浸入式水口堵塞过程板坯结晶器内流动与液面波动的模拟

张永亮¹,朱苗勇¹,张胜军¹,郑淑国¹,程乃良²,宋景欣²

1东北大学材料与冶金学院，沈阳 110004;
2上海梅山钢铁有限股份公司，南京210039

收稿日期:2006-04-14 出版日期:2006-10-01 发布日期:2006-10-01
作者简介:张永亮(1979-),男，硕士研究生，从事连铸过程结晶器内液位波动及控制工艺研究。

Simulation of Liquid Level Oscillation and Flowage in Slab Concasting Mold during Submerged Nozzle Clogging Course

Zhang Yongliang¹, Zhu Miaoyong¹, Zhang Shengjun¹, Zheng Shuguo¹, Cheng Nailiang², Song Jingxin²

1 School of Materials and Metallurgy, Northeastern University, Shenyang 110004；
2 Shanghai Meishan Iron and Steel Co Ltd, Nanjing 210039

Received:2006-04-14 Published:2006-10-01 Online:2006-10-01

摘要/Abstract

摘要： 用水模型研究拉速为1.4 ~2.4 m/min的220 mm x 1 300 mm板坯连铸结晶器浸入式水口发生堵塞和吹氧时，结晶器内的液面与流动行为。结果表明，水口发生堵塞时，水口两侧的流股不对称，气泡的平均直径减小，气泡进入结晶器的深度增加，引发卷渣和气泡缺陷的机率将明显增加。

Abstract: The behavior of liquid level and flowage in 220 mm x 1 300 mm slab mold with casting speed 1. 4 ~2. 4 m/min during submerged nozzle clogging and argon blowing has been studied by water model. The results showed that during nozzle clogging course the streams at both side of nozzle were asymmetric, the size of bubble decreased and the depth of bubbles penetration in mold increased to induce slag entrapment and to increase slab defect produced by bubbles obviously.

Key words: Slab, Mold, Nozzle Clogging, Bubble, Liquid Level Oscillation, Flowage

张永亮, 朱苗勇, 张胜军, 郑淑国, 程乃良, 宋景欣. 浸入式水口堵塞过程板坯结晶器内流动与液面波动的模拟[J]. 特殊钢, 2006, 27(5): 27-29.

Zhang Yongliang, Zhu Miaoyong, Zhang Shengjun, ZhengShuguo, Cheng Nailiang, Song Jingxin. Simulation of Liquid Level Oscillation and Flowage in Slab Concasting Mold during Submerged Nozzle Clogging Course[J]. Special Steel, 2006, 27(5): 27-29.