| 圆柱形红外硫系玻璃淬冷降温模型与实验分析 |
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| 引用本文： | 宋宝安,戴世勋,徐铁峰,聂秋华,沈祥,王训四,林常规.圆柱形红外硫系玻璃淬冷降温模型与实验分析[J].物理学报,2011,60(8):84217-084217. |
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| 作者姓名： | 宋宝安 戴世勋 徐铁峰 聂秋华 沈祥 王训四 林常规 |
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| 作者单位： | 宁波大学信息科学与工程学院,宁波 315211 |
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| 基金项目： | 国家自然科学基金(批准号:60878042,60978058)、浙江省杰出青年基金(批准号:R1101263)、浙江省高等学校科研计划(批准号:Y200907654)、宁波市科技创新团队计划(批准号:2009B21007)、宁波市自然科学基金(批准号:2011A610187)、宁波大学王宽诚幸福基金和宁波大学人才工程(批准号:010011201)资助的课题. |
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| 摘 要： | 出炉温度和冷却速率是大尺寸硫系玻璃制备过程中的关键参数. 在热传导方程理论基础上,运用最小二乘拟合的方法建立计算圆柱形硫系玻璃冷却过程温度分布的理论模型. 利用该模型对硫系玻璃的出炉温度、出炉后温度分布以及冷却速率进行了仿真分析,并将仿真分析结果与实验数据进行了比较. 研究表明:出炉后玻璃棒的温度处于非稳态非均匀分布,其表面降温最快,且速率随时间呈现指数型下降;玻璃棒温度从中心到边缘近似呈抛物线型分布;当以高于析晶温度50-100 ℃,表面热交换系数180 W ·m-2 K
关键词：
红外硫系玻璃
淬冷降温模型
析晶
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| 关 键 词： | 红外硫系玻璃 淬冷降温模型 析晶 |
| 收稿时间： | 2010-10-07 |
Model of quench cooling and experimental analysis of cylindrical infrared chalcogenide glass |
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| Song Bao-An,Dai Shi-Xun,Xu Tie-Feng,Nie Qiu-Hu,Shen Xiang,Wang Xun-Si and Lin Chang-Gui.Model of quench cooling and experimental analysis of cylindrical infrared chalcogenide glass[J].Acta Physica Sinica,2011,60(8):84217-084217. |
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| Authors: | Song Bao-An Dai Shi-Xun Xu Tie-Feng Nie Qiu-Hu Shen Xiang Wang Xun-Si and Lin Chang-Gui |
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| Institution: | Faculty of Information Science and Engineering, Ningbo University, Ningbo 315211, China;Faculty of Information Science and Engineering, Ningbo University, Ningbo 315211, China;Faculty of Information Science and Engineering, Ningbo University, Ningbo 315211, China;Faculty of Information Science and Engineering, Ningbo University, Ningbo 315211, China;Faculty of Information Science and Engineering, Ningbo University, Ningbo 315211, China;Faculty of Information Science and Engineering, Ningbo University, Ningbo 315211, China;Faculty of Information Science and Engineering, Ningbo University, Ningbo 315211, China |
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| Abstract: | The tapping temperature and the cooling rate are the key parameters during the development process of chalcogenide glass.Based on the theory of heat conduction equation,a model for calculating the temperature distribution of cylindrical chalcogenide glass is established using the least square fitting method in this paper.The tapping temperature,the temperature distribution and the cooling rate are simulated by using the model.The simulation results are compared with experimental data.The results show that t... |
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| Keywords: | infrared chalcogenide glass model of quench cooling crystallization |
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