MEASUREMENT OF EFFECTIVE THERMAL DIFFUSIVITY OF MOLD SLAG FOR CONTINUOUS CASTER UNDER THE CRYSTALLIZATION.

本项目的主要目的已经确立。该设备研制成功，运行良好。通过对实测数据的分析，明确了影响离子渣熔体热导率的因素：对流、辐射和电子电导率。在800℃以上的高温区域，辐射对表观导热系数的贡献显著。此外，还发现来自热电偶（Pt）的辐射能量会影响热扩散系数的测量，特别是对于透明牡鹿。通过理论计算消除了辐射的影响，得到了合理的数值。

The main purpose of this project has been established. The equipment has been successfully developed and it is working well. From the results of analysis using obtained data, the factors affecting the thermal conductivity measured by present system have been clarified, which were convection, radiation and electron conductivity for ionic slag melt. In high temperature region more than 800℃, a contribution of radiation on the apparent thermal conductivity was significant. Moreover, it was found that the radiation energy from the thermocouple (Pt) affected the measurement of thermal diffusivity, especially for the transparent stag. The effect of radiation was eliminated by theoretical calculation and reasonable values have been obtained.