Industrial Research on Broadening of Slab in Continuous Casting Process

钢铁研究学报(英文版), 2010, 17(8): 20-24.

^1, , ^2, , ^3, , ^4,

1.School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China;Machinery and Electric Department, University of Jiaozuo, Jiaozuo 454000, Henan, China

2.School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China

3.National Engineering Research Center of Continuous Casting Technology, Central Iron and Steel Research Institute, Beijing 100081, China

4.National Engineering Research Center of Continuous Casting Technology, Central Iron and Steel Research Institute, Beijing 100081, China

基金项目: National Science and Technology Support Program for 11th Five-Year Plan of China(2006BAE03A04)

Industrial Research on Broadening of Slab in Continuous Casting Process

FU Jian-xun ^1, , LI Jing-she ^2, , ZHANG Hui ^3, , ZHANG Xing-zhong ^4,

2.School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China

3.National Engineering Research Center of Continuous Casting Technology, Central Iron and Steel Research Institute, Beijing 100081, China

4.National Engineering Research Center of Continuous Casting Technology, Central Iron and Steel Research Institute, Beijing 100081, China

Keywords： continuous casting

In order to check the general existence of broadening of slab and the reasons of formation, the broadening of slab was investigated on the basis of several industrial manufactures of continuous casting. The results show that slab broadening commonly exists in the process of continuous casting. The causes of broadening were ruled out of the consideration of the change of mold size or the change of technical parameters. The results reveal that the broadening of slab probably results from the static pressure of molten steel and the force from driving rolls. At the same time,online observations of three grades of steel in the process of continuous casting reveal that the ratio of ultimate broadening of slab ranges from 1.27% to 3.00%, and even arrives at 4.4%.

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Industrial Research on Broadening of Slab in Continuous Casting Process

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