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High pressure pneumatic refrigeration transfer system

2019-04-02

High pressure pneumatic refrigeration transfer system



The high-pressure pneumatic refrigeration system cooperates with the homogenization system to complete the high-pressure inflation and freezing of the sample, and transfer to the homogenization system for homogenization experimental research and characterization. The whole system solves 17 technical difficulties, including ultra-high pressure special gas aeration and recovery technology, ultra-high pressure and leak rate control technology for special gas systems, low-temperature gas-filled experimental cold box multi-layer structure design and integration technology and sample transfer process. The low temperature state maintains the technology and the like.


 

 Temperature index

Lowest temperature

9K

Temperature stability

Better than ±0.5mK@15K

Temperature rise and fall rate

0.005K/min2K/min

 

 

System leak rate

Leak Rate of High pressure partial

8.0×10-9 Pam3/s100 MPa 

Leak Rate of Medium pressure partial

8.0×10-9 Pam3/s50 MPa 

Vacuum system leakage rate

5.0×10-10Pa.m3/s 

 

Vibration index

Cold box

<±8μ

Sample characterization

0.2μm