铝铸轧带坯上表面夹渣的原因及其预防措施  

Methods and causes of surface slag on cast-rolling strip

作　　者：胥福顺[1] 何正夫[1] 和锦黎 陈劲戈 李军[1] 

机构地区：[1]云南铝业股份有限公司,云南昆明650502

出　　处：《轻合金加工技术》2009年第6期12-15,共4页Light Alloy Fabrication Technology

摘　　要：铝铸轧带坯上表面夹渣严重影响铝板带材质量。分析发现,铸嘴尺寸和结构不合理,前箱液面高度不稳定,带坯上下板面凝固结晶差异等是形成带坯上表面夹渣的主要原因。通过优化铸嘴尺寸和结构,稳定控制前箱液面高度等措施,在生产中取得了较好效果。Surface slag severely affects the quality of aluminium cast-rolling strip. The main factors of slag is related to size and irrational structure of nozzle, unstable liquid height of tundish and crystalline differences between surfaces of cast-rolling strip. It achieved good results by optimizing size and structures of nozzle, stable height of tundish.

关 键 词：铸轧 表面夹渣 铸嘴结构 前箱液面高度 

分 类 号：TF821[冶金工程—有色金属冶金]