动态条件下MgO-C耐火材料与钢液的界面反应
Interfacial reaction between MgO-C refractory and steel under dynamic conditions
在本研究中,通过将MgO-C耐火材料棒浸入到钢液中,研究了动态条件下MgO-C耐火材料与钢液的界面反应。结果表明:动态条件下钢液对耐火材料的冲刷使得耐火材料边界处的 MgO 剥落进入钢中,部分MgO与钢中的溶解Al反应生成MgO-Al2O3 夹杂物,进入钢中影响钢的洁净度。在耐火材料和钢液的界面处生成了一层致密的MgO反应层,其将钢液与镁碳耐火材料隔离,抑制了钢液和耐材的相互侵蚀。
In the current study,laboratory experiments were conducted to investigate the interfacial reaction between steel and MgO-C refractory under dynamic conditions by immersing refractory bars into molten steel.The results show that:under dynamic conditions,the physical scour of molten steel on the refractory makes the MgO at the boundary of refractory peel off and enter the steel,and part of the MgO reacts with dissolved Al in steel to form MgO-Al2O3 inclusion,which enters the steel and affects the cleanliness of the steel.A dense MgO reaction layer was formed at the interface between the refractory and the molten steel,which isolated the molten steel from the magnesia carbon refractory and inhibited the mutual erosion between the molten steel and the refractory.
赵明哲;任强;张立峰;
燕山大学材料科学与工程学院,秦皇岛 066004,2.北方工业大学机械与材料工程学院,北京 100144;燕山大学材料科学与工程学院,秦皇岛 066004,2.北方工业大学机械与材料工程学院,北京 100144;;
MgO-C refractory dynamic conditions MgO-Al2O3 inclusion
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