基于相似理论,选择乳状液滴作为模拟夹杂物,利用物理模型研究了吹氩钢液精炼过程气泡去夹杂机理,考察了工艺参数对夹杂物去除规律的影响。实验结果表明:较小和较大气量均有较好的去夹杂效果。通过研究可以看出,较小和较大气量范围内,夹杂物分别主要通过小气泡粘附和大气泡的尾流捕捉去除。
A physical model was established by choosing emulsion drops simulated as inclusions to study the mechanism of inclusion removal from molten steel by bubbles during the refining process with argon blowing, and the effect of operation parameters on inclusion removal was investigated. The results show that both the smaller and the larger gas flowrates seemed to be efficient for inclusion removal. The inclusions are mainly removed by attachment to bubbles at smaller gas flowrate and mainly removed by capture in the wakes behind big bubbles at larger gas flowrate.