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

Special Steel ›› 2009, Vol. 30 ›› Issue (5): 22-24.

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

Xie Changchuan¹, Wang Xinhua¹ , Zhang Jiongming¹ , Li Fushuai² , Wang Chaoying² , Ai Jian³ , Jiao Yushui³ , Chen Maojin³

1. Metallurgical and Ecological Engineering School, University of Science and Technology, Beijing 100083 ；
2. CCTEC Engineering Co Ltd, Wuhan 430073；
3. Stainless Steel Works, Shandong Taishan Iron and Steel Co Ltd, Laiwu 271100

Received:2009-04-21 Online:2009-10-01 Published:2022-11-21

板坯连铸动态轻压下扇形段的受力分析和应用

谢长川¹，王新华¹，张炯明¹，李富帅²，王朝盈²，艾健³，焦玉水³，陈茂敬³

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；

作者简介:谢长川(1976-)，男，博士生，连铸新技术。

Abstract

Abstract: Deformation of slab at segment during dynamic soft reduction of casting 200 mm x 1 600 mm stainless steel slab has been simulated by soft ware ANSYS. It is obtained that the effective compensation of roll gap at No.l to No.11 of segment is 0.2 ~ 1.0 mm. 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.

Key words: Slab Casting, Dynamic Soft Reduction, Finite Element Simulation, Application

摘要： 通过ANSYS软件模拟了200 mm×1600 mm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0.2～1.0 mm。生产应用表明,拉速0.7 m/min和0.9 m/min,压下速率0.8～1.4mm/m,总压下量1.30～4.56 mm,铸坯中心偏析均有改善,铸坯厚度与设定值之差≤0.5 mm;拉速为0.7 m/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1.2 mm/m,压下区间固相率20%～50%时,C、S中心偏析指数降至1.05。

关键词: 板坯连铸, 动态轻压下, 有限元模拟, 应用

Xie Changchuan, Wang Xinhua , Zhang Jiongming , Li Fushuai , Wang Chaoying , Ai Jian , Jiao Yushui , Chen Maojin. Analysis on Action and Reaction Force between Slab and Rollers at Segment of Dynamic Soft Reduction and Application in Casting[J]. Special Steel, 2009, 30(5): 22-24.

谢长川, 王新华, 张炯明, 李富帅, 王朝盈, 艾健, 焦玉水, 陈茂敬. 板坯连铸动态轻压下扇形段的受力分析和应用[J]. 特殊钢, 2009, 30(5): 22-24.

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