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| 超高速连铸结晶器内坯壳的传热行为 | |
| 引用本文： | 张路平,肖鹏程,刘增勋,张朝阳,朱立光,张仕骏.超高速连铸结晶器内坯壳的传热行为[J].连铸,2021,40(6):17-23. |
| 作者姓名： | 张路平 肖鹏程 刘增勋 张朝阳 朱立光 张仕骏 |
| 作者单位： | 1.华北理工大学冶金与能源学院, 河北 唐山 063210; 2.河北省高品质钢连铸协同创新中心冶金与能源学院, 河北 唐山 063009; 3.河钢股份有限公司唐山分公司, 河北 唐山 063000; 4.河北科技大学材料科学与工程学院, 河北 石家庄 050018 |
| 基金项目： | 国家自然科学基金资助项目(51904107); 河北省自然科学基金资助项目(E2020209005, E2021209094); 河北省高等学校科学技术研究资助项目(BJ2019041); 河北省“三三三人才工程”资助项目(A202102002); 唐山市人才资助项目(A202010004)。 |
| 摘 要： | 超高速连铸漏斗结晶器内坯壳的生长速率对铸坯表面质量有着显著的影响。基于节点温度继承算法(NTI),运用ANSYS有限元软件建立了结晶器内钢水凝固的三维瞬态导热模型,解析了浇注温度和拉速对薄板坯传热行为的影响。研究表明,随着拉速从4.0提高到6.0 m/min,结晶器出口坯壳最大厚度由26减小到12.8 mm,结晶器出口坯壳表面最高温度从1 209增加到1 305 ℃。而浇注温度从1 550 ℃提高到1 560 ℃对坯壳的表面温度和厚度影响不大。 |
| 关 键 词： | 连铸 超高速 热量传递 坯壳凝固 数值模拟 |
Heat transfer behavior of inner shell of ultra-high speed continuous casting mould |
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| ZHANG Lu-ping,XIAO Peng-cheng,LIU Zeng-xun,ZHANG Zhao-yang,ZHU Li-guang,ZHANG Shi-jun.Heat transfer behavior of inner shell of ultra-high speed continuous casting mould[J].CONTINUOUS CASTING,2021,40(6):17-23. | |
| Authors: | ZHANG Lu-ping XIAO Peng-cheng LIU Zeng-xun ZHANG Zhao-yang ZHU Li-guang ZHANG Shi-jun |
| Affiliation: | 1. College of Metallurgy and Energy, North China University of Science and Technology, Tangshan 063210, Hebei, China; 2. College of Metallurgy and Energy, Collaborative Innovation Center for High Quality Steel Continuous Casting of Hebei Province, Tangshan 063009, Hebei, China; 3. Tangshan Branch, Hebei Iron and Steel Co., Ltd., Tangshan 063000, Hebei, China; 4. Materials Science, Hebei University of Science and Technology and Engineering College, Shijiazhuang 050018, Hebei, China |
| Abstract: | The growth rate of slab shell in the mould of ultra-high speed continuous casting funnel has a significant effect on the surface quality of slab. Based on the node temperature inheritance algorithm (NTI), the three-dimensional transient thermal conductivity model of molten steel solidification in mold was established by using ANSYS finite element software, and the influence of casting temperature and casting speed on the heat transfer behavior of thin slab was analyzed. The results show that with the increase of casting speed from 4.0 to 6.0 m/min, the maximum thickness of slab shell at the exit of mold decreases from 26 to 12.8 mm, and the maximum surface temperature of slab shell at the exit of mold increases from 1 209 ℃ to 1 305 ℃. However, the increase of casting temperature from 1 550 ℃ to 1 560 ℃ has little effect on the surface temperature and thickness of slab shell. |
| Keywords: | ontinuous casting ultra-high speed heat transfer solidification of blank shell numerical simulation |
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