不锈钢管-铝型材复合热沉性能研究

闫格; 张英明; 刘伟成; 路正瑶

doi:10.3969/j.issn.1006-7086.2022.06.015

不锈钢管-铝型材复合热沉性能研究

兰州真空设备有限责任公司华宇分公司, 兰州 730000

详细信息

作者简介:
闫格,高级工程师,主要从事真空低温设备非标设计及空间环境模拟技术研究。E-mail:15193116115@139.com

中图分类号: V416.5；V464
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出版历程
- 收稿日期: 2022-03-08
- 网络出版日期: 2023-09-25

Properties of Composite Thermal Shroud of Stainless Steel Pipe-Aluminum Profile

Lanzhou Vacuum Equipment CO., Ltd. Huayu Branch, Lanzhou 730000, China

摘要

摘要: 热沉是空间环模设备的关键部件，热沉材料的性能直接关系到热沉的性能乃至环模设备的性能。简述了常用热沉材料的性能特点及国内外部分热沉材料及结构。研制了一种不锈钢管-铝型材复合热沉，其中，复合翅片管是将不锈钢管穿入铝型材翅片管中胀接而成的。对装入热沉前后的真空容器进行了压力和温度均匀性测试，结果表明，热沉的气体负荷很小，不影响真空容器的空载压力；在-35~70℃范围内，热沉整体温度不均匀性为-2.3~2.5℃；在10~70℃范围内的升温速率为2.73℃/min，20~-35℃范围内的降温速率为1.82℃/min，可满足环模试验需求。铝合金和不锈钢材质在复合热沉中发挥了各自优点，使得热沉可靠性高、质量轻、造价低廉、加工方便快捷，有一定的应用前景。未来还须进一步研究不锈钢管和铝型材翅片管的穿胀工艺以减小接触热阻。
- 铝型材 ;
- 不锈钢管 ;
- 热沉 ;
- 温度均匀性
Abstract: Thermal shroud is the key component of space environment equipment,and the material properties of thermal shroud is directly related to the performance of thermal shroud and even the performance of space environment equipment.The performance characteristics of commonly used thermal shroud materials as well as some thermal shroud materials and structures at home and abroad are briefly described.Acomposite thermal shroud of stainless steel pipe-aluminum profile has been developed,and the composite finned tube is produced by expanding a stainless steel pipe into the aluminum finned tube.The pressure and temperature uniformity of vacuum chamber before and after loading thermal shroud have been tested,and the results show that the gas load of the thermal shroud is small and does not affect pressure of no-load vacuum chamber,In the range of-35~70 ℃,the overall temperature inhomogeneity of the thermal shroud is-2.3~2.5℃,in the range of 10~70℃,the temperature rise rate is 2.73℃/min,and in the range of-35~20℃,the temperature reduction rate is 1.82℃/min,which can meet the requirements of environment simulation experiments.Aluminum alloy and stainless steel have their own charactristics in the composite thermal shroud,which makes the thermal shroud with high reliability,light weight,low cost,convenient and quick processing and boasts definite prospects for a variety of applications.In the future,it is necessary to study further the expansion process of the stainless steel tube and the aluminum finned pipe to reduce the thermal contact resistance.
- aluminum profiles /
- stainless steel pipe /
- thermal shroud /
- temperature uniformity

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参考文献(9)

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