板坯连铸动态轻压下扇形段的受力分析和应用  

Analysis on Action and Reaction Force between Slab and Rollers at Segment of Dynamic Soft Reduction and Application in Casting

作　　者：谢长川[1] 王新华[1] 张炯明[1] 李富帅 王朝盈 艾健[3] 焦玉水 陈茂敬 

机构地区：[1]北京科技大学冶金与生态工程学院,北京100083 [2]中冶连铸技术工程股份有限公司,武汉430073 [3]泰山钢铁公司不锈钢厂,莱芜271100

出　　处：《特殊钢》2009年第5期22-24,共3页Special Steel

摘　　要：通过ANSYS软件模拟了200mm×1600mm不锈钢板坯连铸轻压下过程扇形段铸坯的变形，得出1#到11#扇形段辊缝的动态补偿量0．2～1．0mm。生产应用表明，拉速0．7m／min和0．9m／min，压下速率0．8～1．4mm／m，总压下量1．30—4．56mm，铸坯中心偏析均有改善，铸坯厚度与设定值之差≤0．5mm；拉速为0．7m／min时，未采用动态轻压下时，C、S中心偏析指数为1．30，当压下速率为1．2mm／m，压下区间固相率20％～50％时，C、S中心偏析指数降至1．05。Deformation of slab at segment during dynamic soft reduction of casting 200 mm ×1 600 mm stainless steel slab has been simulated by soft ware ANSYS. It is obtained that the effective compensation of roll gap at Nol to Nol 1 of segment is 0. 2 - 1.0 ram. Production application results show that with casting speed 0. 7 m/min and 0. 9 m/min, dynamic soft reduction rate 0. 8 - 1.4 mm/m, total reduction 1.30 - 4. 56 mm, the center segregation of slab all improves and the error of thickness of slab between measured and given value is less than 0. 5 mm; at casting speed 0. 7 m/min, as without using dynamic soft reduction the center segregation index of C and S is 1.3, while with dynamic soft reduction rate 1.2 mm/m, solidification rate at reduction zone is 20% -50%, the center segregation index of C and S decreases to 1.05.

关 键 词：板坯连铸 动态轻压下 有限元模拟 应用 

分 类 号：TF341.6[冶金工程—冶金机械及自动化]