| 厚板坯连铸二次冷却传热数学模拟 |
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| 引用本文： | 冯亮花,朱苗勇,刘坤,曹晋伟.厚板坯连铸二次冷却传热数学模拟[J].特殊钢,2009,30(2):21-24. |
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| 作者姓名： | 冯亮花 朱苗勇 刘坤 曹晋伟 |
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| 作者单位： | 1. 东北大学材料与冶金学院，沈阳 110004；
2. 辽宁科技大学材料科学与工程学院，鞍山 114051； |
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| 摘 要： | 在考虑二冷边界换热的条件下,建立了与厚板坯连铸机相适应的传热数学模型。用远红外测温仪测试X65管线钢230 mm×1650 mm铸坯表面温度,实验结果同模拟结果吻合较好。应用数学模型,对不同拉速下管线钢的连铸凝固过程进行了仿真计算,分析了拉速对出结晶器坯壳厚度、铸坯表面温度和液芯长度的影响,得出在给定的二冷条件下,为得到合理的铸坯表面温度,管线钢的拉速应为0.9～1.2m/min。
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| 关 键 词： | 厚板坯 二次冷却 拉速 表面温度 数学模拟 |
| 收稿时间： | 2008-09-19 |
Mathematical Simulation on Thermal Transmission of Secondary Cooling Process for Slab Concasting |
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| Feng Lianghua,Zhu Miaoyong,Liu Kun,Cao Jinwei.Mathematical Simulation on Thermal Transmission of Secondary Cooling Process for Slab Concasting[J].Special Steel,2009,30(2):21-24. |
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| Authors: | Feng Lianghua Zhu Miaoyong Liu Kun Cao Jinwei |
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| Affiliation: | 1. School of Materials and Metallurgy t Northeastern University, Shenyang 110004；
2. School of Materials Science and Engineering, Liaoning University of Science and Technology, Anshan 114051； |
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| Abstract: | With considering the boundary conditions for secondary cooling thermal transmission, a mathematical model for thermal transmission to suit slab caster has been established. The measurement results by using infrared thermoscope to measure the surface temperature of 230 mm x 1650 mm slab of X65 pipeline steel conform to simulation results. The cast solidification of pipeline steel with different casting speed has been simulated and calculated by mathematical model to analyze the effect of casting speed on thickness of slab shell in mold, surface temperature of slab and length of liquid core, it is obtained that at given secondary cooling conditions, in order to obtain reasonable surface temperature of slab the casting speed of pipeline steel slab should be 0.9-1.2 m/min. |
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| Keywords: | Slab Secondary Cooling Casting Speed Surface Temperature Mathematical Simulation |
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