Al-Ca质钢包渣改质剂应用试验研究  

Research on the Al-Ca-Based Conditioning Flux for Ladle Slag

作　　者：窦力威[1] 于赋志[2] 李晓伟[2] 沈峰满[1] 

机构地区：[1]东北大学材料与冶金学院,辽宁沈阳110004 [2]鞍钢股份有限公司,辽宁鞍山114001

出　　处：《东北大学学报（自然科学版）》2009年第9期1295-1297,共3页Journal of Northeastern University(Natural Science)

基　　金：国家自然科学基金资助项目(50474014)

摘　　要：采用铝造渣球和新型Al-Ca质改质剂,在某钢厂180 t转炉出钢时,对转炉出钢带入钢包的下渣进行了改质处理试验.针对铝镇静钢与沸腾钢两种出钢方式,分别研究了两种改质剂对转炉渣改质的影响及对钢液的作用.试验结果表明:每炉加入200 kg Al-Ca质改质剂的效果与加入400 kg铝造渣球的改质效果相当;应用两种改质剂均未见有明显增碳;在达到同样改质效果时,应用Al-Ca质改质剂既便于精炼处理,又具有非常明显的成本优势.An Al-Ca-based conditioning flux was newly developed and the comparative experiments were carried out between the conventional Al-CaO-based and the Al-Ca-based conditioning fluxes to control the tapping slag in ladle for the 180 t BOF at a certain steel plant. Then, the effects of the two conditioning fluxes on the slag and both the Al-killed and unkilled molten steel were investigated. The results indicated that 200 kg of the Al-Ca-based conditioning flux is equivalent to 400 kg of the Al-CaO-hased conditioning flux for each melt in the BOF, and no obvious increase in carbon content is found in molten steel no matter which conditioning flux is used. In addition, if the conditioning effect remains the same, the Al-Ca-based conditioning flux is more convenient for ladle refining with the cost reduced significantly.

关 键 词：转炉 出钢 钢包 下渣 改质剂 精炼 成本 

分 类 号：TF764[冶金工程—钢铁冶金]