| 连铸坯坯壳厚度的射钉测试及凝固系数的修正 |
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| 引用本文： | 韩志伟,陈登福.连铸坯坯壳厚度的射钉测试及凝固系数的修正[J].重庆大学学报(自然科学版),2011,34(5):47-52. |
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| 作者姓名： | 韩志伟 陈登福 |
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| 作者单位： | 重庆大学材料科学与工程学院;中冶赛迪工程技术股份有限公司连铸事业部; |
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| 基金项目： | 国家自然科学基金资助项目(50674109) |
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| 摘 要： | 针对目前采用射钉测量铸坯坯壳厚度的方法中没有考虑钉子射入铸坯后熔化时间的问题,建立了钉子在铸坯内部的传热数学模型,同时应用有限元软件MSC.Marc对钉子熔化过程进行数值模拟,提出了凝固系数的修正方法和计算式,以实际算例说明了凝固系数、凝固终点位置在修正前后分别有0.5%和1.2%的偏差,采用修正以后的计算式,凝固系数和凝固终点的计算更为准确,对实际生产具有指导意义。
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| 关 键 词： | 连铸 坯壳厚度 射钉 凝固系数 修正算法 |
| 收稿时间： | 2010/12/16 0:00:00 |
Nail-shooting measurement of solidified shellthickness and solidification coefficient revision |
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| HAN Zhi-wei and CHEN Deng-fu.Nail-shooting measurement of solidified shellthickness and solidification coefficient revision[J].Journal of Chongqing University(Natural Science Edition),2011,34(5):47-52. |
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| Authors: | HAN Zhi-wei and CHEN Deng-fu |
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| Institution: | HAN Zhi-wei1,2,CHEN Deng-fu1(1.College of Materials Science and Engineering,Chongqing University,Chongqing 400044,P.R.China,2.Department of Continuous Casting,CISDI Engineering Co.,Ltd.,Chongqing 400013,P.R.China) |
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| Abstract: | Aiming at the problem that nail's melting time in slab isn't been taken into consideration for measuring method of solidified shell by nail-shooting technique,the mathematical model of heat transfer for nail in slab is built,and the process of nail melting in slab is simulated by the finite element software MSC.Marc.The revising method and formula are proposed.The differences 0.5% and 1.2% for solidification coefficient and solidification ending fore and after revising are analyzed by instance.It shows the ... |
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| Keywords: | continuous casting shell thickness of solidified slab shooting nail solidification coefficient modified algorithm |
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