云母纸层压板是一种良好的耐热及电绝缘材料。用它设计和制作各种电热绝缘器件装置时,它的导热系数是重要参数之一。由于这种层压板很薄,通常的热导系数测定装置难以准确地测定出它的导热系数。本文以云母纸层压板为具体测试对象,研究并讨论用通常平板稳定热流法测定薄型材料热导系数的方法。 Mica paper laminate is a good heat and electrical insulation materials. When using it to design and manufacture all kinds of electric insulation device, its thermal conductivity is one of the most important parameters. Due to the thinness of such laminates, conventional thermal conductivity gauges are difficult to accurately determine their thermal conductivity. In this paper, mica paper laminate as a specific test object, to study and discuss the usual plate heat flux method to determine the thermal conductivity of thin materials.