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为提高建筑材料的研究试制和应用,在研究建筑材料诸性能中,测定材料的导热系数是不可缺少的指标之一。单一材料的导热系数已有各种导热系数仪进行测定,对于复合材料的导热系数(或热阻)则需有专门的试验设备和方法才能测定。 现介绍一种热箱传热系数测定法,此法不仅设备较为简单,而且既能对单一材料的板材进行测定,又可对复合材料的板材进行
In order to improve the trial production and application of building materials, determining the thermal conductivity of materials is one of the indispensable indicators in the study of various properties of building materials. The thermal conductivity of a single material has been measured with a variety of thermal conductivity meters. For thermal conductivity (or thermal resistance) of composite materials, special testing equipment and methods are required to determine the thermal conductivity of a single material. A method for measuring the heat transfer coefficient of a hot box is introduced. This method is not only simpler in terms of equipment, but it can also be used to determine the material of a single material and the composite material.