艾奇逊炉石墨电极的结构热场分析
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摘要
采用数值模拟的方法对艾奇逊碳化硅合成炉中的石墨电极进行热场分析,同时研究了杂质颗粒对于电极的影响。研究表明电极上温度分布基本均匀,除与炉芯直接相连部分外,大部分温度维持在90~150℃。同时可以看出电极中杂质粒子的存在会造成明显的温度梯度,随着杂质粒子粒径的增加温度梯度也在增加,生产中可在电极表面进行抗氧化喷涂处理,提高电极的纯净度从而延长电极使用寿命。
Through numerical simulation of thermal field on graphite electrodes in Acheson Si C synthesis furnace was analyzed. The results show that the temperature distribution is basically uniform on the electrode surface,and the most of the temperature is maintained at 90~150℃except for the part directly connected with the furnace core. At the same time the impurity particles in the electrodes caused obvious temperature gradient,with the impurity particle size increase the temperature gradient is increased. Anti-oxidation coating can be applied on the electrode surface during production to improve the purity of the electrode so as to prolong the service life of the electrode.
Through numerical simulation of thermal field on graphite electrodes in Acheson Si C synthesis furnace was analyzed. The results show that the temperature distribution is basically uniform on the electrode surface,and the most of the temperature is maintained at 90~150℃except for the part directly connected with the furnace core. At the same time the impurity particles in the electrodes caused obvious temperature gradient,with the impurity particle size increase the temperature gradient is increased. Anti-oxidation coating can be applied on the electrode surface during production to improve the purity of the electrode so as to prolong the service life of the electrode.
引文
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[4]王晓刚,李晓池.冶炼碳化硅的多炉芯炉及其生产碳化硅的方法:中国.1364996[P].2002-08-21.
[5]陈杰,王晓刚.多热源合成碳化硅温度场的均匀性研究[J],矿冶工程,2013,33(6):97-100.
[6]王晓刚.碳化硅合成理论与技术[M].西安:陕西科学技术出版社,2001.
[7]JOHN D ANDERSON JR.计算流体力学入门[M].北京:清华大学出版社,2002.
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