建立了三段步进梁式加热炉板坯加热过程数学模型,用全隐式有限差分法对数学模型进行离散化,开发了板坯温度场计算模型.采用该模型重点研究了板坯宽度对板坯中心温度变化过程的影响规律.研究结果表明,对于厚度为200 mm的板坯,当板坯宽度大于600 mm时,板坯中心温度变化过程与板坯宽度无关.以此为根据,优化了板坯加热工艺,达到了提高生产效率并节能减排的目的.
A mathematical model for slabs heated in a 3-zone walking beam type of reheating furnace was established. The finite difference method was used for the discretion of the mathematical model and a com-putational software was developed. The influence of the slab's width on the change of the slab's tempera-ture was studied. It was founded that, to the 200 mm thick slab, when the width is above 600 mm, the slab's width has no influence on the slab's center point temperature. According to the result, the slab's reheating process was optimized, which improved the productivity and saved the energy.
参考文献
| [1] | 青格勒,程素森,杨天钧,李士琦.步进梁式加热炉内的板坯温度场数值模拟[J].北京科技大学学报,2004(02):164-168. |
| [2] | 余万华,刘新忠,戴石峰,韩静涛.加热钢坯内部温度的计算机模拟[J].轧钢,2005(05):17-20. |
| [3] | 王敏,胡雄光,孙茂林,闫智平,王凤琴.蓄热式轧钢加热炉板坯加热温度场研究[J].首钢科技,2007(02):24-27. |
| [4] | 温崇哲.热工及热应力基础[M].北京:机械工业出版社,1982 |
| [5] | 谭真;郭广文.工程合金热物性[M].北京:冶金工业出版社,1994 |
| [6] | 叶红卫.宝钢热轧4号加热炉传热模型的参数确定[J].宝钢技术,2001(06):27-30. |
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