Cause Analysis and Improving Measures on Edge Crack Defect of Jigang ASP Hot Rolling Line
Edge crack defect of hot rolling strip was analyzed by using optical microscope and scanning electron microscopy. The inheritance of transverse corner cracking in slab resulted mainly in edge crack. The slim crack defect was formed by the folds forced in the surface which was generated by the over cooling and homogeneity of edge and corner elongation in rolling process. The adoption of the casting of slow cooling in CCM, improve mould slag, constant speed, reduce cooling of rough rolling and edge reduction could effectively suppressed the edge crack defect of hot rolling strip.
hot rolling strip mould slag edge crack
SUN Wei-hua WANG Jin-hua LI Jian-ke CHEN Qing-jun
Technology Center of Jinan Iron & Steel Co., Ltd., China
国际会议
2009年薄板坯连铸连轧国际研讨会(TSCR 2009)(2009 International Symposium on Thin Slab Casting and Rolling)
南京
英文
181-186
2009-05-13（万方平台首次上网日期，不代表论文的发表时间）