提出了在电场活化烧结过程中施加轴向交变磁场与脉冲电场耦合改善烧结体径向温度场以减小其温度差的方法,并对不同大小磁场的作用进行了数值模拟.结果表明:施加轴向交变磁场可使横截面上的最大温度差减少3/4.其原因是交变磁场的感应电流具有集肤效应,可以使试样外部得到更多的热量.试验结果证明了模拟的准确性.
参考文献
| [1] | K. Matsugi;H. Kuramoto;T. Hatayama .Temperature distribution at steady state under constant current discharge in spark sintering process of Ti and Al_2O_3 powders[J].Journal of Materials Processing Technology,2004(2):274-281. |
| [2] | Wang YC.;Fu ZY. .Study of temperature field in spark plasma sintering[J].Materials Science & Engineering, B. Solid-State Materials for Advanced Technology,2002(1/2):34-37. |
| [3] | K. Vanmeensel;A. Laptev;J. Hennicke .Modelling of the temperature distribution during field assisted sintering[J].Acta materialia,2005(16):4379-4388. |
| [4] | 吕殿利,张惠娟,汪友华,耿跃华.输油管线感应加热器的有限元模拟及其参数设计[J].华北电力大学学报,2005(z1):45-48. |
| [5] | 李桃,倪光正.有限元在钢球感应透热处理中的应用[J].浙江理工大学学报,2005(03):269-273. |
| [6] | Yukio Ueda;Hidekazu Murakawa;Ahmed Mohamed et al.Development of computer aided process planning system for plate bending by line-heating (Report 3) relation between heating condition and deformations[J].JOURNAL OF THE SOCIETY OF NAVAL ARCHITECTS OF JAPA,1993,6:409-431. |
| [7] | 许雪峰,吴金富.感应透热有限元模拟分析[J].金属热处理,2005(12):85-88. |
| [8] | 储乐平,马骏,刘玉君,纪卓尚.钢板感应加热机理及电磁-热耦合场的数值模拟[J].中国造船,2005(01):98-105. |
| [9] | 韦丹.材料的电磁基础[M].北京:科学出版社,2005 |
| [10] | Bao-Lin Wang;Yiu-Wing Mai .Transient one-dimensional heat conduction problems solved by finite element[J].International Journal of Mechanical Sciences,2005(2):303-317. |
| [11] | 孔祥谦.有限元在传热学中的应用[M].北京:科学出版社,1998 |
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