连铸薄板坯表面纵裂纹的产生根源  

The source of longitudinal crack in surface of thin slab

作　　者：韩精华[1] 武建琦 张瑞忠[1] 刘耀辉[1] 李军[1] 魏鹏义[1] 周英超[1] 魏祖康[1] 

机构地区：[1]邯钢连铸连轧厂,河北邯郸056015

出　　处：《重型机械》2005年第6期27-30,共4页Heavy Machinery

摘　　要：通过580组数据测量及分析研究,认为产生薄板坯表面纵裂纹的原因除钢水质量、结晶器保护渣、连铸工艺参数等因素外,还与结晶器的结构,即与结晶器的背腔U形槽冷却水通道的几何参数和结晶器内腔曲面的形状有关。After up to 580 data measurements and analysis, we found out that besides the steel quality, mould powder, casting parameters etc, the longitudinal cracks in the thin slab surface was also influenced by the structure of the mould, i.e. the geometrical parameter of ＂U＂ shape water channel in the backside of the mould and the curved surface shape of the mould.

关 键 词：结晶器 纵裂 水道参数 曲面形状 

分 类 号：TF777.7[冶金工程—钢铁冶金]