导热系数是表征材料传热能力的重要物理参数，是窑炉材料及其它工程材料的一个热物理特性之一。在研究和开发新型耐火材料中，各国都很重视导热系数这项技术指标，并作为在冶金工程材料、建筑中作为选择材料的重要依据之一，所以，准确测定材料的导热系数至关重要。l导热系数的 Thermal conductivity is an important physical parameter that characterizes the heat transfer of materials and is one of the thermophysical properties of kiln materials and other engineering materials. In the research and development of new refractories, all countries attach great importance to the thermal conductivity of the technical indicators, and metallurgical engineering materials, construction as an important basis for selection of materials, so accurate determination of the thermal conductivity of the material is essential. l thermal conductivity