中空铝型材导热性能实验研究  

Experimental Research of Thermal Conducting Properties of the Layer Combined with Aluminum Extrusion

作　　者：马晓婧[1] 张雯娣[1] 颉方正[1] 

机构地区：[1]兰州石化职业技术学院汽车工程系,甘肃兰州730060

出　　处：《机械研究与应用》2016年第2期76-77,80,共3页Mechanical Research & Application

摘　　要：大型中空挤压铝型材的当量导热系数包括空腔内的自然对流以及铝合金固体材料的导热。中空铝型材导热性能实验研究结果表明,铝型材实验达到热平衡状态比较快,随着实验时间的延长,加热面的温度基本没有变化;中空铝型材的当量导热系数不随温差的改变而改变。The equivalent thermal conductivity of the aluminum extrusions include the natural convection in the cavity and the heat conduction of the aluminum alloy materials. The results indicate that thermal equilibrium state is relatively fast and the temperature of the hot wall has no change with the extension of the experiment time;the equivalent thermal conductivity of the combined layer does not depend on the temperature difference.

关 键 词：中空铝型材 当量导热系数 实验研究 

分 类 号：U270.1[机械工程—车辆工程]