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近年来,随着各种钢包冶金工艺的发展,对耐火材料内衬的要求也越来越苛刻。二次冶金过程是以在钢水、熔渣和气相之间所进行的剧烈的界面反应为基础的,对超低硫钢的要求又需要使用反应能力强的碱性渣,虽然这类渣的脱硫能力强,但却常常使渣线区的优质衬砖过早地受到蚀损。通常,各种炉外精炼过程是在渣线区砌筑镁砖的白云石内衬钢包中进行的,由于在真空条件下底部搅拌的结果,钢水的循环非常强烈,钢水与熔渣之间的反应异常剧烈,故对于各种真空脱气工艺来讲(VD,VOD),其钢包的蚀损程度最为严重(尤其是渣线区)。本文介绍了通过
In recent years, with the development of various ladle metallurgical processes, the requirements for refractory linings have also become increasingly demanding. The secondary metallurgical process is based on a violent interfacial reaction between molten steel, slag and gas phase. The requirement for ultra-low sulfur steel also requires the use of alkaline slag with high reactivity, although the desulfurization Powerful, but often make the lining of the lining of the high quality bricks prematurely eroded. In general, the various extra-steel refining processes are carried out in dolomite-lined ladle with magnesia bricks in the slag line area. Due to the bottom agitation under vacuum, the circulation of the molten steel is very intense and the difference between the molten steel and slag The reaction is extremely severe, so the degree of the ladle loss is the most serious for various vacuum degassing processes (especially the slag zone). This article describes the adoption