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

这个项目的主要目的已经确定。该设备已研制成功，运行状况良好。通过对测量数据的分析，明确了影响本系统测量导热系数的因素，即离子渣熔体的对流、辐射和电子导热系数。在800℃以上的高温区，辐射对表观导热系数的贡献很大。此外，还发现来自热电偶的辐射能量(铂)对热扩散率的测量有影响，特别是对于透明的STAG。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.