5.4K双级G—M型制冷机的实验研究  

Development of a Two-Stage G-M Refrigerator at 5.4K

作　　者：龚领会[1] 张亮[1] 周一鸣[1] 高树武[1] 马艳伶 余晓雨 兰翠玲[1] 陈国邦[2] 吴沛宜[3] 

机构地区：[1]中国科学院低温技术实验中心 [2]浙江大学 [3]西安交通大学

出　　处：《低温与超导》1993年第1期1-5,共5页Cryogenics and Superconductivity

基　　金：国家自然科学基金

摘　　要：本文描述了以新型磁性蓄冷材料Er_3Ni为二级蓄冷器填料的双级G—M型制冷机在不同转速下的实验结果及和常规材料Pb为二级蓄冷器填料的双级G一M型制冷机的性能比较。该制冷机的二级最低温度为;60rpm时,6.1K;48rpm时,5.4K;36rpm时,最低温度出现了4.28K的峰值.In this paper,the experimental results obtained from a two-stage G-M refrigerator with magnetic material as a 2nd regenerator matrix instead of Pb matrix are described.The purpose of this study is to improve the refrigeration performance.The refrigerator has reached the lowest temperature of 6.1K at 60rpm,5.4K at 48rpm and 4,28K(peak value) at 36rpm,respectively.

关 键 词：磁性 蓄冷材料 蓄冷器 制冷机 

分 类 号：TB64[一般工业技术—制冷工程]