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介绍了可工作于－８０℃～－２０℃的热管装置的结构；研究了它的传热性能；并测量了在控温过程中热管温场的均匀性，纵向温场的温度梯度≤０．４℃，横向温场的温度梯度≤０．１℃；控温精度优于±０．５℃。
The structure of the heat pipe device which can work at -80 ℃ ~ -20 ℃ is introduced. The heat transfer performance of the heat pipe device is studied. The uniformity of the temperature field in the heat pipe is also measured. The temperature gradient of the vertical temperature field is less than or equal to 0. 4 ℃, transverse temperature field temperature gradient ≤ 0.1 ℃; temperature control accuracy better than ± 0.5 ℃.