二级塑料制冷机的实验研究  

EXPERIMENTAL STUDY OF A 2-STAGE PLASTIC CRYOCOOLER

作　　者：陈国邦[1] 孙国华[1] 孟庆虹 黄志秀[1] 郑建耀[1] 张法高[1] 崔培红[1] 董宏[1] 

机构地区：[1]浙江大学低温教研室

出　　处：《低温与超导》1990年第3期1-8,共8页Cryogenics and Superconductivity

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.

关 键 词：制冷机 塑料制冷机 实验研究 

分 类 号：TB651[一般工业技术—制冷工程]