温度和压强对硅钢叠片等效热导率影响的实验研究  

Experimental study on the effect of temperature and pressure on the equivalent thermal conductivity of silicon steel laminated

作　　者：王殿嵩 李青 李秋昊 李慧文 龙朝明 赵鹏飞 豆瑞锋 Wang Diansong;Li Qing;Li Qiuhao;Li Huiwen;Long Chaoming;Zhao Pengfei;Dou Ruifeng(University of Science and Technology Beijing;Silicon Steel Career Department,Beijing ShouGang Co.,Ltd;Beijing Key Laboratory of Energy Saving and Emission Reduction of Metallurgical Industry,University of Science and Technology Beijing)

机构地区：[1]北京科技大学能源与环境工程学院 [2]首钢股份公司迁安钢铁公司硅钢事业部 [3]北京科技大学冶金工业节能减排北京市重点实验室

出　　处：《冶金能源》2018年第3期17-20,42,共5页Energy For Metallurgical Industry

基　　金：北京科技大学"2017年本科生科技创新创业训练项目"(2017261818);中央高校基本科研业务费专项资金(FRF-TP-15-021A2)

摘　　要：文章设计了硅钢叠片等效热导率的实验测试方案,测量不同温度、压强条件下硅钢叠片的等效热导率,最终通过参数回归分析的方法,得到等效热导率随着温度、压强的定量化的变化规律。实验结果表明,在温度一定时,硅钢片之间的等效热导率随界面压强的增大而增大;压强卸载过程的等效热导率高于压强加载过程的等效热导率,并且温度越高,加载和卸载测得的等效热导率数值差别越大;当压强一定时,硅钢片之间的等效热导率随着温度的升高而降低,且压强越大,等效热导率随温度的变化越小。In the paper,an experimental test scheme was designed to measure the equivalent thermal conductivity of the silicon steel lamination under different temperature and pressure. By parameter regression analysis,we got the quantitative relationship between the equivalent thermal conductivity with temperature and pressure. The experimental results show that the equivalent thermal conductivity of silicon steel increases with the increase of interfacial pressure at a certain temperature. The equivalent thermal conductivity of the unloading process is higher than that of the loading process. The higher the temperature,the greater the difference between the values of the equivalent thermal conductivities measured under loading and unloading. When the pressure is constant,the equivalent thermal conductivity decreases as the temperature increases. The higher the pressure,the smaller the change of the equivalent thermal conductivity with the temperature.

关 键 词：导热 接触热阻 立体卷铁心 等效热导率 

分 类 号：TK124[动力工程及工程热物理—工程热物理] TM41[动力工程及工程热物理—热能工程]