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应用有限元仿真软件MSC.Marc,采用二维切片法,以邯钢CSP薄板坯连铸生产线为研究对象,分析铸坯在二冷区的凝固传热规律。结果表明,在二次冷却区,拉速增大0.1m/min,铸坯表面温度将升高10℃左右,出结晶器坯壳厚度减少约0.26mm,液相穴长度延长约0.16m;过热度增大10℃,铸坯表面温度提高15℃左右,出结晶器口铸坯的厚度减薄0.65mm,液相穴长度延长约0.2m;冷却强度增大10%,铸坯表面温度降低,第四冷却段最明显,约40℃左右,液相穴长度减少约0.27m,结晶器出口铸坯的坯壳厚度基本没有发生变化。
The finite element simulation software MSC.Marc was used to study the solidification heat transfer rule of slab in the second cooling zone by using the two-dimensional slice method and the CSP thin slab continuous casting production line in Handan Iron and Steel Co., Ltd. The results show that in the secondary cooling zone, the pulling speed increases 0.1m / min, the slab surface temperature will increase about 10 ℃, the crystallizer shell thickness reduced by about 0.26mm, the liquid phase length of about 0.16m; The temperature increases by 10 ℃, the surface temperature of the slab increases by about 15 ℃, the thickness of the mold slab decreases by 0.65mm, the length of the liquid phase hole increases by about 0.2m, the cooling intensity increases by 10% and the slab surface temperature decreases, The fourth cooling section is the most obvious, about 40 ℃, the liquid phase length of about 0.27m, casting mold slab thickness of the basic unchanged.