熔融物热细粒化的实验研究

Experimental Study on Thermal Fragmentation of Melt

通过小规模细粒化实验(SSFT)实验装置开展锡、铅及锡铅合金为熔融物材料的热细粒化实验研究。研究材料物性、下落高度、熔融物初始温度及冷却水温度等对热细粒化的影响;通过分析实验碎片的形貌及大小分布,研究不同参数范围内熔融物热细粒化机理,给出了细粒化机理分区图谱。

Experimental study on the thermal fragmentation of melt, including Sn, Pb and Sn-Pb alloy, has been carried out based on the SSFT （Small-Scale Fragmentation Tests） facility. The effects of the melt properties, release distance, initial melt temperature, and coolant temperature on the thermal fragmentation have been studied. By analyzing the debris characteristics and the distribution, several specific thermal fragmentation mechanisms have been given, corresponding to different parameters. Finally, a partition map of thermal fragmentation mechanisms has been drawn based on the previous work.