摘要
实验研究了分置式斯特林循环塑料制冷机,对组成排出器的尼龙推移活塞和玻璃钢气缸的材料性质进行了试验,在制成最低制冷温度为8.5K 的四级塑料制冷机的基础上,试制了一台工作温度为60K—80K,最低制冷温度为45K 的小功率二级塑料制冷机,以适合有可能实用化的高 Tc 超导电子器件的冷却要求。实测了二级机的预冷曲线,分析了影响制冷性能的因素,提出了改进方向。
Split Stirling plastic cryocoolers were studied experimentally. The properties of materials which form the nylon displacer and the glass-epoxy cylinder were analyzed and tested. Based on the study of a 4-stage plastic cryocooler which had the lowest refrigeration temperature of 8.5K, another new type of low power 2-stage plastic cryocooler was trial-produced to work at a temperature between 60 to 80K and to attain the lowest refrigeration temperature of 45K. This may be used to meet the demand of cooling practical high-Tc superconducting electronic devices. The cooldown characteristics and refrigeration capacities of the cryocooler are given. Finally, existing problems are analyzed and suggestions for further research are indicated.
出处
《低温与超导》
CAS
CSCD
北大核心
1990年第3期1-8,共8页
Cryogenics and Superconductivity
