Study on Roll Gap of Slab Caster Based on Solidification Shrinkage
MA Changwen1,CHEN Songlin1,ZHENG Tianran1,YANG Xiaoshan2
1. Shougang Research Institute of Technology, Shougang Group Corporation, Beijing 100043, China； 2. No.2 Steel Making Plant, Shougang Group Corporation, Beijing 100043, China
Abstract：In order to research the effect of roll gap reduction on reducing the centerline segregation of slab, the temperature and solidification shrinkage of a slab were calculated by numerical simulation, the distribution of the solidified shell thickness and solidification shrinkage along the metallurgical length were analyzed, then three sets of roll gap reduction were built,tested and their effects were compared. The results show that the roll gap reduction within 23 segments before the solidification end is effective to reduce the centerline segregation, and the roll gap reduction rate should be a little more than the slab solidification shrinkage.
马长文;陈松林;郑天然;杨晓山. 基于凝固收缩的板坯铸机辊缝研究[J]. 钢铁, 2008, 43(3): 44-0.
MA Changwen;CHEN Songlin;ZHENG Tianran;YANG Xiaoshan. Study on Roll Gap of Slab Caster Based on Solidification Shrinkage. Iron and Steel, 2008, 43(3): 44-0.
2008, Vol. 43 
