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测定材料的导热率和电阻率,对于材料的应用和研究有重要意义。金属导热率的测量方法很多,由F·X·Kohlrausch首创,经许多工作者应用和发展了的直接通电纵向热流法,适用于1000℃以下的测量,它具有精度较高、试样较小、可以同时测量样品的导热率和电阻率等优点。根据该法的原理,冶金部有色金属研究总院和冶金仪表厂协作研制了DR-10型高温金属导热率、电阻率测量设备。为保证测试结果的准确性和提高测试精度,在使用设备的同时,有必要不断地总结研究各测试条件对实验结果的影响。
Determination of thermal conductivity and resistivity of the material, for the application of materials and research of great significance. There are many ways to measure the thermal conductivity of metals, which is pioneered by FX Kohlrausch and used by many workers to develop the direct current longitudinal flow method. It is suitable for the measurement below 1000 ℃. It has the advantages of high precision, small sample size, You can measure the thermal conductivity of the sample and resistivity and other advantages. According to the principle of the law, Metallurgical Research Institute of Nonferrous Metals and Metallurgical Instrument Factory collaborated in the development of DR-10 high temperature metal thermal conductivity and resistivity measurement equipment. In order to ensure the accuracy of the test results and improve the test accuracy, it is necessary to constantly study the influence of each test condition on the experimental results while using the equipment.