生产20MnSi小方坯预防中间包水口堵塞的措施  

The Countermeasures for Preventing Pouring Basket Nozzle Blockage for Producing 20MnSi billet

作　　者：陈小武[1] 郑淑胜[1] 宋涛[1] 

机构地区：[1]济南钢铁集团石横特殊钢厂

出　　处：《山东冶金》1998年第6期10-11,14,共3页Shandong Metallurgy

摘　　要：石横特钢厂连铸生产２０ＭｎＳｉ小方坯时，钢中全Ａｌ量是中间包水口堵塞的主要原因。通过分析钢中Ａｌ的来源，采取了改变电炉冶炼工艺，控制〔Ｏ〕含量；合理使用铁合金；全程泡沫渣冶炼等措施，控制〔Ａｌ〕小于０．００６％，有效地防止了水口堵塞。The main cause of pouring basket nozzle blockage is all aluminium content in liquid steel during continuous casting 20MnSi billet in Shiheng special steel works of Jinan iron and steel group.Through analyzing the cause of aluminium in liquid steel,taking changing melting process,controlling oxygen content in liquid steel,reasonably using of ferr alloy and controlling aluminium content in liquid steel>0 006%,the pouring basket nozzle blockage can be effectively prevention.

关 键 词：定径水口 连铸 小方坯连铸 中间包 水口堵塞 

分 类 号：TF777.3[冶金工程—钢铁冶金]